From: Keith Randall Date: Tue, 24 May 2016 23:53:48 +0000 (-0700) Subject: cmd/compile: add generated tests for constant folding X-Git-Tag: go1.7beta1~101 X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=786e51d7baf6535290ecb0f34c9e73d7dcc21b02;p=gostls13.git cmd/compile: add generated tests for constant folding Covers a bunch of constant-folding rules in generic.rules that aren't being covered currently. Increases coverage in generic.rules from 65% to 72%. Change-Id: I7bf58809faf22e97070183b42e6dd7d3f35bf5f9 Reviewed-on: https://go-review.googlesource.com/23407 Run-TryBot: Todd Neal TryBot-Result: Gobot Gobot Reviewed-by: Todd Neal --- diff --git a/src/cmd/compile/internal/gc/constFold_test.go b/src/cmd/compile/internal/gc/constFold_test.go new file mode 100644 index 0000000000..118183dd2f --- /dev/null +++ b/src/cmd/compile/internal/gc/constFold_test.go @@ -0,0 +1,12416 @@ +package gc + +import "testing" + +func TestConstFolduint64add(t *testing.T) { + var x, y, r uint64 + x = 0 + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 4294967296 + r = x + y + if r != 4294967296 { + t.Errorf("0 + 4294967296 = %d, want 4294967296", r) + } + y = 18446744073709551615 + r = x + y + if r != 18446744073709551615 { + t.Errorf("0 + 18446744073709551615 = %d, want 18446744073709551615", r) + } + x = 1 + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 4294967296 + r = x + y + if r != 4294967297 { + t.Errorf("1 + 4294967296 = %d, want 4294967297", r) + } + y = 18446744073709551615 + r = x + y + if r != 0 { + t.Errorf("1 + 18446744073709551615 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x + y + if r != 4294967296 { + t.Errorf("4294967296 + 0 = %d, want 4294967296", r) + } + y = 1 + r = x + y + if r != 4294967297 { + t.Errorf("4294967296 + 1 = %d, want 4294967297", r) + } + y = 4294967296 + r = x + y + if r != 8589934592 { + t.Errorf("4294967296 + 4294967296 = %d, want 8589934592", r) + } + y = 18446744073709551615 + r = x + y + if r != 4294967295 { + t.Errorf("4294967296 + 18446744073709551615 = %d, want 4294967295", r) + } + x = 18446744073709551615 + y = 0 + r = x + y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 + 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("18446744073709551615 + 1 = %d, want 0", r) + } + y = 4294967296 + r = x + y + if r != 4294967295 { + t.Errorf("18446744073709551615 + 4294967296 = %d, want 4294967295", r) + } + y = 18446744073709551615 + r = x + y + if r != 18446744073709551614 { + t.Errorf("18446744073709551615 + 18446744073709551615 = %d, want 18446744073709551614", r) + } +} +func TestConstFolduint64sub(t *testing.T) { + var x, y, r uint64 + x = 0 + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != 18446744073709551615 { + t.Errorf("0 - 1 = %d, want 18446744073709551615", r) + } + y = 4294967296 + r = x - y + if r != 18446744069414584320 { + t.Errorf("0 - 4294967296 = %d, want 18446744069414584320", r) + } + y = 18446744073709551615 + r = x - y + if r != 1 { + t.Errorf("0 - 18446744073709551615 = %d, want 1", r) + } + x = 1 + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 4294967296 + r = x - y + if r != 18446744069414584321 { + t.Errorf("1 - 4294967296 = %d, want 18446744069414584321", r) + } + y = 18446744073709551615 + r = x - y + if r != 2 { + t.Errorf("1 - 18446744073709551615 = %d, want 2", r) + } + x = 4294967296 + y = 0 + r = x - y + if r != 4294967296 { + t.Errorf("4294967296 - 0 = %d, want 4294967296", r) + } + y = 1 + r = x - y + if r != 4294967295 { + t.Errorf("4294967296 - 1 = %d, want 4294967295", r) + } + y = 4294967296 + r = x - y + if r != 0 { + t.Errorf("4294967296 - 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x - y + if r != 4294967297 { + t.Errorf("4294967296 - 18446744073709551615 = %d, want 4294967297", r) + } + x = 18446744073709551615 + y = 0 + r = x - y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 - 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x - y + if r != 18446744073709551614 { + t.Errorf("18446744073709551615 - 1 = %d, want 18446744073709551614", r) + } + y = 4294967296 + r = x - y + if r != 18446744069414584319 { + t.Errorf("18446744073709551615 - 4294967296 = %d, want 18446744069414584319", r) + } + y = 18446744073709551615 + r = x - y + if r != 0 { + t.Errorf("18446744073709551615 - 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint64div(t *testing.T) { + var x, y, r uint64 + x = 0 + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 4294967296 + r = x / y + if r != 0 { + t.Errorf("0 / 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x / y + if r != 0 { + t.Errorf("0 / 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 4294967296 + r = x / y + if r != 0 { + t.Errorf("1 / 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x / y + if r != 0 { + t.Errorf("1 / 18446744073709551615 = %d, want 0", r) + } + x = 4294967296 + y = 1 + r = x / y + if r != 4294967296 { + t.Errorf("4294967296 / 1 = %d, want 4294967296", r) + } + y = 4294967296 + r = x / y + if r != 1 { + t.Errorf("4294967296 / 4294967296 = %d, want 1", r) + } + y = 18446744073709551615 + r = x / y + if r != 0 { + t.Errorf("4294967296 / 18446744073709551615 = %d, want 0", r) + } + x = 18446744073709551615 + y = 1 + r = x / y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 / 1 = %d, want 18446744073709551615", r) + } + y = 4294967296 + r = x / y + if r != 4294967295 { + t.Errorf("18446744073709551615 / 4294967296 = %d, want 4294967295", r) + } + y = 18446744073709551615 + r = x / y + if r != 1 { + t.Errorf("18446744073709551615 / 18446744073709551615 = %d, want 1", r) + } +} +func TestConstFolduint64mul(t *testing.T) { + var x, y, r uint64 + x = 0 + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 4294967296 + r = x * y + if r != 0 { + t.Errorf("0 * 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x * y + if r != 0 { + t.Errorf("0 * 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 4294967296 + r = x * y + if r != 4294967296 { + t.Errorf("1 * 4294967296 = %d, want 4294967296", r) + } + y = 18446744073709551615 + r = x * y + if r != 18446744073709551615 { + t.Errorf("1 * 18446744073709551615 = %d, want 18446744073709551615", r) + } + x = 4294967296 + y = 0 + r = x * y + if r != 0 { + t.Errorf("4294967296 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 4294967296 { + t.Errorf("4294967296 * 1 = %d, want 4294967296", r) + } + y = 4294967296 + r = x * y + if r != 0 { + t.Errorf("4294967296 * 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x * y + if r != 18446744069414584320 { + t.Errorf("4294967296 * 18446744073709551615 = %d, want 18446744069414584320", r) + } + x = 18446744073709551615 + y = 0 + r = x * y + if r != 0 { + t.Errorf("18446744073709551615 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 * 1 = %d, want 18446744073709551615", r) + } + y = 4294967296 + r = x * y + if r != 18446744069414584320 { + t.Errorf("18446744073709551615 * 4294967296 = %d, want 18446744069414584320", r) + } + y = 18446744073709551615 + r = x * y + if r != 1 { + t.Errorf("18446744073709551615 * 18446744073709551615 = %d, want 1", r) + } +} +func TestConstFolduint64mod(t *testing.T) { + var x, y, r uint64 + x = 0 + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 0 { + t.Errorf("0 % 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x % y + if r != 0 { + t.Errorf("0 % 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 1 { + t.Errorf("1 % 4294967296 = %d, want 1", r) + } + y = 18446744073709551615 + r = x % y + if r != 1 { + t.Errorf("1 % 18446744073709551615 = %d, want 1", r) + } + x = 4294967296 + y = 1 + r = x % y + if r != 0 { + t.Errorf("4294967296 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 0 { + t.Errorf("4294967296 % 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x % y + if r != 4294967296 { + t.Errorf("4294967296 % 18446744073709551615 = %d, want 4294967296", r) + } + x = 18446744073709551615 + y = 1 + r = x % y + if r != 0 { + t.Errorf("18446744073709551615 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 4294967295 { + t.Errorf("18446744073709551615 % 4294967296 = %d, want 4294967295", r) + } + y = 18446744073709551615 + r = x % y + if r != 0 { + t.Errorf("18446744073709551615 % 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint64add(t *testing.T) { + var x, y, r int64 + x = -9223372036854775808 + y = -9223372036854775808 + r = x + y + if r != 0 { + t.Errorf("-9223372036854775808 + -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x + y + if r != 1 { + t.Errorf("-9223372036854775808 + -9223372036854775807 = %d, want 1", r) + } + y = -4294967296 + r = x + y + if r != 9223372032559808512 { + t.Errorf("-9223372036854775808 + -4294967296 = %d, want 9223372032559808512", r) + } + y = -1 + r = x + y + if r != 9223372036854775807 { + t.Errorf("-9223372036854775808 + -1 = %d, want 9223372036854775807", r) + } + y = 0 + r = x + y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 + 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x + y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775808 + 1 = %d, want -9223372036854775807", r) + } + y = 4294967296 + r = x + y + if r != -9223372032559808512 { + t.Errorf("-9223372036854775808 + 4294967296 = %d, want -9223372032559808512", r) + } + y = 9223372036854775806 + r = x + y + if r != -2 { + t.Errorf("-9223372036854775808 + 9223372036854775806 = %d, want -2", r) + } + y = 9223372036854775807 + r = x + y + if r != -1 { + t.Errorf("-9223372036854775808 + 9223372036854775807 = %d, want -1", r) + } + x = -9223372036854775807 + y = -9223372036854775808 + r = x + y + if r != 1 { + t.Errorf("-9223372036854775807 + -9223372036854775808 = %d, want 1", r) + } + y = -9223372036854775807 + r = x + y + if r != 2 { + t.Errorf("-9223372036854775807 + -9223372036854775807 = %d, want 2", r) + } + y = -4294967296 + r = x + y + if r != 9223372032559808513 { + t.Errorf("-9223372036854775807 + -4294967296 = %d, want 9223372032559808513", r) + } + y = -1 + r = x + y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775807 + -1 = %d, want -9223372036854775808", r) + } + y = 0 + r = x + y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 + 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x + y + if r != -9223372036854775806 { + t.Errorf("-9223372036854775807 + 1 = %d, want -9223372036854775806", r) + } + y = 4294967296 + r = x + y + if r != -9223372032559808511 { + t.Errorf("-9223372036854775807 + 4294967296 = %d, want -9223372032559808511", r) + } + y = 9223372036854775806 + r = x + y + if r != -1 { + t.Errorf("-9223372036854775807 + 9223372036854775806 = %d, want -1", r) + } + y = 9223372036854775807 + r = x + y + if r != 0 { + t.Errorf("-9223372036854775807 + 9223372036854775807 = %d, want 0", r) + } + x = -4294967296 + y = -9223372036854775808 + r = x + y + if r != 9223372032559808512 { + t.Errorf("-4294967296 + -9223372036854775808 = %d, want 9223372032559808512", r) + } + y = -9223372036854775807 + r = x + y + if r != 9223372032559808513 { + t.Errorf("-4294967296 + -9223372036854775807 = %d, want 9223372032559808513", r) + } + y = -4294967296 + r = x + y + if r != -8589934592 { + t.Errorf("-4294967296 + -4294967296 = %d, want -8589934592", r) + } + y = -1 + r = x + y + if r != -4294967297 { + t.Errorf("-4294967296 + -1 = %d, want -4294967297", r) + } + y = 0 + r = x + y + if r != -4294967296 { + t.Errorf("-4294967296 + 0 = %d, want -4294967296", r) + } + y = 1 + r = x + y + if r != -4294967295 { + t.Errorf("-4294967296 + 1 = %d, want -4294967295", r) + } + y = 4294967296 + r = x + y + if r != 0 { + t.Errorf("-4294967296 + 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x + y + if r != 9223372032559808510 { + t.Errorf("-4294967296 + 9223372036854775806 = %d, want 9223372032559808510", r) + } + y = 9223372036854775807 + r = x + y + if r != 9223372032559808511 { + t.Errorf("-4294967296 + 9223372036854775807 = %d, want 9223372032559808511", r) + } + x = -1 + y = -9223372036854775808 + r = x + y + if r != 9223372036854775807 { + t.Errorf("-1 + -9223372036854775808 = %d, want 9223372036854775807", r) + } + y = -9223372036854775807 + r = x + y + if r != -9223372036854775808 { + t.Errorf("-1 + -9223372036854775807 = %d, want -9223372036854775808", r) + } + y = -4294967296 + r = x + y + if r != -4294967297 { + t.Errorf("-1 + -4294967296 = %d, want -4294967297", r) + } + y = -1 + r = x + y + if r != -2 { + t.Errorf("-1 + -1 = %d, want -2", r) + } + y = 0 + r = x + y + if r != -1 { + t.Errorf("-1 + 0 = %d, want -1", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("-1 + 1 = %d, want 0", r) + } + y = 4294967296 + r = x + y + if r != 4294967295 { + t.Errorf("-1 + 4294967296 = %d, want 4294967295", r) + } + y = 9223372036854775806 + r = x + y + if r != 9223372036854775805 { + t.Errorf("-1 + 9223372036854775806 = %d, want 9223372036854775805", r) + } + y = 9223372036854775807 + r = x + y + if r != 9223372036854775806 { + t.Errorf("-1 + 9223372036854775807 = %d, want 9223372036854775806", r) + } + x = 0 + y = -9223372036854775808 + r = x + y + if r != -9223372036854775808 { + t.Errorf("0 + -9223372036854775808 = %d, want -9223372036854775808", r) + } + y = -9223372036854775807 + r = x + y + if r != -9223372036854775807 { + t.Errorf("0 + -9223372036854775807 = %d, want -9223372036854775807", r) + } + y = -4294967296 + r = x + y + if r != -4294967296 { + t.Errorf("0 + -4294967296 = %d, want -4294967296", r) + } + y = -1 + r = x + y + if r != -1 { + t.Errorf("0 + -1 = %d, want -1", r) + } + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 4294967296 + r = x + y + if r != 4294967296 { + t.Errorf("0 + 4294967296 = %d, want 4294967296", r) + } + y = 9223372036854775806 + r = x + y + if r != 9223372036854775806 { + t.Errorf("0 + 9223372036854775806 = %d, want 9223372036854775806", r) + } + y = 9223372036854775807 + r = x + y + if r != 9223372036854775807 { + t.Errorf("0 + 9223372036854775807 = %d, want 9223372036854775807", r) + } + x = 1 + y = -9223372036854775808 + r = x + y + if r != -9223372036854775807 { + t.Errorf("1 + -9223372036854775808 = %d, want -9223372036854775807", r) + } + y = -9223372036854775807 + r = x + y + if r != -9223372036854775806 { + t.Errorf("1 + -9223372036854775807 = %d, want -9223372036854775806", r) + } + y = -4294967296 + r = x + y + if r != -4294967295 { + t.Errorf("1 + -4294967296 = %d, want -4294967295", r) + } + y = -1 + r = x + y + if r != 0 { + t.Errorf("1 + -1 = %d, want 0", r) + } + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 4294967296 + r = x + y + if r != 4294967297 { + t.Errorf("1 + 4294967296 = %d, want 4294967297", r) + } + y = 9223372036854775806 + r = x + y + if r != 9223372036854775807 { + t.Errorf("1 + 9223372036854775806 = %d, want 9223372036854775807", r) + } + y = 9223372036854775807 + r = x + y + if r != -9223372036854775808 { + t.Errorf("1 + 9223372036854775807 = %d, want -9223372036854775808", r) + } + x = 4294967296 + y = -9223372036854775808 + r = x + y + if r != -9223372032559808512 { + t.Errorf("4294967296 + -9223372036854775808 = %d, want -9223372032559808512", r) + } + y = -9223372036854775807 + r = x + y + if r != -9223372032559808511 { + t.Errorf("4294967296 + -9223372036854775807 = %d, want -9223372032559808511", r) + } + y = -4294967296 + r = x + y + if r != 0 { + t.Errorf("4294967296 + -4294967296 = %d, want 0", r) + } + y = -1 + r = x + y + if r != 4294967295 { + t.Errorf("4294967296 + -1 = %d, want 4294967295", r) + } + y = 0 + r = x + y + if r != 4294967296 { + t.Errorf("4294967296 + 0 = %d, want 4294967296", r) + } + y = 1 + r = x + y + if r != 4294967297 { + t.Errorf("4294967296 + 1 = %d, want 4294967297", r) + } + y = 4294967296 + r = x + y + if r != 8589934592 { + t.Errorf("4294967296 + 4294967296 = %d, want 8589934592", r) + } + y = 9223372036854775806 + r = x + y + if r != -9223372032559808514 { + t.Errorf("4294967296 + 9223372036854775806 = %d, want -9223372032559808514", r) + } + y = 9223372036854775807 + r = x + y + if r != -9223372032559808513 { + t.Errorf("4294967296 + 9223372036854775807 = %d, want -9223372032559808513", r) + } + x = 9223372036854775806 + y = -9223372036854775808 + r = x + y + if r != -2 { + t.Errorf("9223372036854775806 + -9223372036854775808 = %d, want -2", r) + } + y = -9223372036854775807 + r = x + y + if r != -1 { + t.Errorf("9223372036854775806 + -9223372036854775807 = %d, want -1", r) + } + y = -4294967296 + r = x + y + if r != 9223372032559808510 { + t.Errorf("9223372036854775806 + -4294967296 = %d, want 9223372032559808510", r) + } + y = -1 + r = x + y + if r != 9223372036854775805 { + t.Errorf("9223372036854775806 + -1 = %d, want 9223372036854775805", r) + } + y = 0 + r = x + y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 + 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x + y + if r != 9223372036854775807 { + t.Errorf("9223372036854775806 + 1 = %d, want 9223372036854775807", r) + } + y = 4294967296 + r = x + y + if r != -9223372032559808514 { + t.Errorf("9223372036854775806 + 4294967296 = %d, want -9223372032559808514", r) + } + y = 9223372036854775806 + r = x + y + if r != -4 { + t.Errorf("9223372036854775806 + 9223372036854775806 = %d, want -4", r) + } + y = 9223372036854775807 + r = x + y + if r != -3 { + t.Errorf("9223372036854775806 + 9223372036854775807 = %d, want -3", r) + } + x = 9223372036854775807 + y = -9223372036854775808 + r = x + y + if r != -1 { + t.Errorf("9223372036854775807 + -9223372036854775808 = %d, want -1", r) + } + y = -9223372036854775807 + r = x + y + if r != 0 { + t.Errorf("9223372036854775807 + -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x + y + if r != 9223372032559808511 { + t.Errorf("9223372036854775807 + -4294967296 = %d, want 9223372032559808511", r) + } + y = -1 + r = x + y + if r != 9223372036854775806 { + t.Errorf("9223372036854775807 + -1 = %d, want 9223372036854775806", r) + } + y = 0 + r = x + y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 + 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x + y + if r != -9223372036854775808 { + t.Errorf("9223372036854775807 + 1 = %d, want -9223372036854775808", r) + } + y = 4294967296 + r = x + y + if r != -9223372032559808513 { + t.Errorf("9223372036854775807 + 4294967296 = %d, want -9223372032559808513", r) + } + y = 9223372036854775806 + r = x + y + if r != -3 { + t.Errorf("9223372036854775807 + 9223372036854775806 = %d, want -3", r) + } + y = 9223372036854775807 + r = x + y + if r != -2 { + t.Errorf("9223372036854775807 + 9223372036854775807 = %d, want -2", r) + } +} +func TestConstFoldint64sub(t *testing.T) { + var x, y, r int64 + x = -9223372036854775808 + y = -9223372036854775808 + r = x - y + if r != 0 { + t.Errorf("-9223372036854775808 - -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x - y + if r != -1 { + t.Errorf("-9223372036854775808 - -9223372036854775807 = %d, want -1", r) + } + y = -4294967296 + r = x - y + if r != -9223372032559808512 { + t.Errorf("-9223372036854775808 - -4294967296 = %d, want -9223372032559808512", r) + } + y = -1 + r = x - y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775808 - -1 = %d, want -9223372036854775807", r) + } + y = 0 + r = x - y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 - 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x - y + if r != 9223372036854775807 { + t.Errorf("-9223372036854775808 - 1 = %d, want 9223372036854775807", r) + } + y = 4294967296 + r = x - y + if r != 9223372032559808512 { + t.Errorf("-9223372036854775808 - 4294967296 = %d, want 9223372032559808512", r) + } + y = 9223372036854775806 + r = x - y + if r != 2 { + t.Errorf("-9223372036854775808 - 9223372036854775806 = %d, want 2", r) + } + y = 9223372036854775807 + r = x - y + if r != 1 { + t.Errorf("-9223372036854775808 - 9223372036854775807 = %d, want 1", r) + } + x = -9223372036854775807 + y = -9223372036854775808 + r = x - y + if r != 1 { + t.Errorf("-9223372036854775807 - -9223372036854775808 = %d, want 1", r) + } + y = -9223372036854775807 + r = x - y + if r != 0 { + t.Errorf("-9223372036854775807 - -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x - y + if r != -9223372032559808511 { + t.Errorf("-9223372036854775807 - -4294967296 = %d, want -9223372032559808511", r) + } + y = -1 + r = x - y + if r != -9223372036854775806 { + t.Errorf("-9223372036854775807 - -1 = %d, want -9223372036854775806", r) + } + y = 0 + r = x - y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 - 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x - y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775807 - 1 = %d, want -9223372036854775808", r) + } + y = 4294967296 + r = x - y + if r != 9223372032559808513 { + t.Errorf("-9223372036854775807 - 4294967296 = %d, want 9223372032559808513", r) + } + y = 9223372036854775806 + r = x - y + if r != 3 { + t.Errorf("-9223372036854775807 - 9223372036854775806 = %d, want 3", r) + } + y = 9223372036854775807 + r = x - y + if r != 2 { + t.Errorf("-9223372036854775807 - 9223372036854775807 = %d, want 2", r) + } + x = -4294967296 + y = -9223372036854775808 + r = x - y + if r != 9223372032559808512 { + t.Errorf("-4294967296 - -9223372036854775808 = %d, want 9223372032559808512", r) + } + y = -9223372036854775807 + r = x - y + if r != 9223372032559808511 { + t.Errorf("-4294967296 - -9223372036854775807 = %d, want 9223372032559808511", r) + } + y = -4294967296 + r = x - y + if r != 0 { + t.Errorf("-4294967296 - -4294967296 = %d, want 0", r) + } + y = -1 + r = x - y + if r != -4294967295 { + t.Errorf("-4294967296 - -1 = %d, want -4294967295", r) + } + y = 0 + r = x - y + if r != -4294967296 { + t.Errorf("-4294967296 - 0 = %d, want -4294967296", r) + } + y = 1 + r = x - y + if r != -4294967297 { + t.Errorf("-4294967296 - 1 = %d, want -4294967297", r) + } + y = 4294967296 + r = x - y + if r != -8589934592 { + t.Errorf("-4294967296 - 4294967296 = %d, want -8589934592", r) + } + y = 9223372036854775806 + r = x - y + if r != 9223372032559808514 { + t.Errorf("-4294967296 - 9223372036854775806 = %d, want 9223372032559808514", r) + } + y = 9223372036854775807 + r = x - y + if r != 9223372032559808513 { + t.Errorf("-4294967296 - 9223372036854775807 = %d, want 9223372032559808513", r) + } + x = -1 + y = -9223372036854775808 + r = x - y + if r != 9223372036854775807 { + t.Errorf("-1 - -9223372036854775808 = %d, want 9223372036854775807", r) + } + y = -9223372036854775807 + r = x - y + if r != 9223372036854775806 { + t.Errorf("-1 - -9223372036854775807 = %d, want 9223372036854775806", r) + } + y = -4294967296 + r = x - y + if r != 4294967295 { + t.Errorf("-1 - -4294967296 = %d, want 4294967295", r) + } + y = -1 + r = x - y + if r != 0 { + t.Errorf("-1 - -1 = %d, want 0", r) + } + y = 0 + r = x - y + if r != -1 { + t.Errorf("-1 - 0 = %d, want -1", r) + } + y = 1 + r = x - y + if r != -2 { + t.Errorf("-1 - 1 = %d, want -2", r) + } + y = 4294967296 + r = x - y + if r != -4294967297 { + t.Errorf("-1 - 4294967296 = %d, want -4294967297", r) + } + y = 9223372036854775806 + r = x - y + if r != -9223372036854775807 { + t.Errorf("-1 - 9223372036854775806 = %d, want -9223372036854775807", r) + } + y = 9223372036854775807 + r = x - y + if r != -9223372036854775808 { + t.Errorf("-1 - 9223372036854775807 = %d, want -9223372036854775808", r) + } + x = 0 + y = -9223372036854775808 + r = x - y + if r != -9223372036854775808 { + t.Errorf("0 - -9223372036854775808 = %d, want -9223372036854775808", r) + } + y = -9223372036854775807 + r = x - y + if r != 9223372036854775807 { + t.Errorf("0 - -9223372036854775807 = %d, want 9223372036854775807", r) + } + y = -4294967296 + r = x - y + if r != 4294967296 { + t.Errorf("0 - -4294967296 = %d, want 4294967296", r) + } + y = -1 + r = x - y + if r != 1 { + t.Errorf("0 - -1 = %d, want 1", r) + } + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != -1 { + t.Errorf("0 - 1 = %d, want -1", r) + } + y = 4294967296 + r = x - y + if r != -4294967296 { + t.Errorf("0 - 4294967296 = %d, want -4294967296", r) + } + y = 9223372036854775806 + r = x - y + if r != -9223372036854775806 { + t.Errorf("0 - 9223372036854775806 = %d, want -9223372036854775806", r) + } + y = 9223372036854775807 + r = x - y + if r != -9223372036854775807 { + t.Errorf("0 - 9223372036854775807 = %d, want -9223372036854775807", r) + } + x = 1 + y = -9223372036854775808 + r = x - y + if r != -9223372036854775807 { + t.Errorf("1 - -9223372036854775808 = %d, want -9223372036854775807", r) + } + y = -9223372036854775807 + r = x - y + if r != -9223372036854775808 { + t.Errorf("1 - -9223372036854775807 = %d, want -9223372036854775808", r) + } + y = -4294967296 + r = x - y + if r != 4294967297 { + t.Errorf("1 - -4294967296 = %d, want 4294967297", r) + } + y = -1 + r = x - y + if r != 2 { + t.Errorf("1 - -1 = %d, want 2", r) + } + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 4294967296 + r = x - y + if r != -4294967295 { + t.Errorf("1 - 4294967296 = %d, want -4294967295", r) + } + y = 9223372036854775806 + r = x - y + if r != -9223372036854775805 { + t.Errorf("1 - 9223372036854775806 = %d, want -9223372036854775805", r) + } + y = 9223372036854775807 + r = x - y + if r != -9223372036854775806 { + t.Errorf("1 - 9223372036854775807 = %d, want -9223372036854775806", r) + } + x = 4294967296 + y = -9223372036854775808 + r = x - y + if r != -9223372032559808512 { + t.Errorf("4294967296 - -9223372036854775808 = %d, want -9223372032559808512", r) + } + y = -9223372036854775807 + r = x - y + if r != -9223372032559808513 { + t.Errorf("4294967296 - -9223372036854775807 = %d, want -9223372032559808513", r) + } + y = -4294967296 + r = x - y + if r != 8589934592 { + t.Errorf("4294967296 - -4294967296 = %d, want 8589934592", r) + } + y = -1 + r = x - y + if r != 4294967297 { + t.Errorf("4294967296 - -1 = %d, want 4294967297", r) + } + y = 0 + r = x - y + if r != 4294967296 { + t.Errorf("4294967296 - 0 = %d, want 4294967296", r) + } + y = 1 + r = x - y + if r != 4294967295 { + t.Errorf("4294967296 - 1 = %d, want 4294967295", r) + } + y = 4294967296 + r = x - y + if r != 0 { + t.Errorf("4294967296 - 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x - y + if r != -9223372032559808510 { + t.Errorf("4294967296 - 9223372036854775806 = %d, want -9223372032559808510", r) + } + y = 9223372036854775807 + r = x - y + if r != -9223372032559808511 { + t.Errorf("4294967296 - 9223372036854775807 = %d, want -9223372032559808511", r) + } + x = 9223372036854775806 + y = -9223372036854775808 + r = x - y + if r != -2 { + t.Errorf("9223372036854775806 - -9223372036854775808 = %d, want -2", r) + } + y = -9223372036854775807 + r = x - y + if r != -3 { + t.Errorf("9223372036854775806 - -9223372036854775807 = %d, want -3", r) + } + y = -4294967296 + r = x - y + if r != -9223372032559808514 { + t.Errorf("9223372036854775806 - -4294967296 = %d, want -9223372032559808514", r) + } + y = -1 + r = x - y + if r != 9223372036854775807 { + t.Errorf("9223372036854775806 - -1 = %d, want 9223372036854775807", r) + } + y = 0 + r = x - y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 - 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x - y + if r != 9223372036854775805 { + t.Errorf("9223372036854775806 - 1 = %d, want 9223372036854775805", r) + } + y = 4294967296 + r = x - y + if r != 9223372032559808510 { + t.Errorf("9223372036854775806 - 4294967296 = %d, want 9223372032559808510", r) + } + y = 9223372036854775806 + r = x - y + if r != 0 { + t.Errorf("9223372036854775806 - 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x - y + if r != -1 { + t.Errorf("9223372036854775806 - 9223372036854775807 = %d, want -1", r) + } + x = 9223372036854775807 + y = -9223372036854775808 + r = x - y + if r != -1 { + t.Errorf("9223372036854775807 - -9223372036854775808 = %d, want -1", r) + } + y = -9223372036854775807 + r = x - y + if r != -2 { + t.Errorf("9223372036854775807 - -9223372036854775807 = %d, want -2", r) + } + y = -4294967296 + r = x - y + if r != -9223372032559808513 { + t.Errorf("9223372036854775807 - -4294967296 = %d, want -9223372032559808513", r) + } + y = -1 + r = x - y + if r != -9223372036854775808 { + t.Errorf("9223372036854775807 - -1 = %d, want -9223372036854775808", r) + } + y = 0 + r = x - y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 - 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x - y + if r != 9223372036854775806 { + t.Errorf("9223372036854775807 - 1 = %d, want 9223372036854775806", r) + } + y = 4294967296 + r = x - y + if r != 9223372032559808511 { + t.Errorf("9223372036854775807 - 4294967296 = %d, want 9223372032559808511", r) + } + y = 9223372036854775806 + r = x - y + if r != 1 { + t.Errorf("9223372036854775807 - 9223372036854775806 = %d, want 1", r) + } + y = 9223372036854775807 + r = x - y + if r != 0 { + t.Errorf("9223372036854775807 - 9223372036854775807 = %d, want 0", r) + } +} +func TestConstFoldint64div(t *testing.T) { + var x, y, r int64 + x = -9223372036854775808 + y = -9223372036854775808 + r = x / y + if r != 1 { + t.Errorf("-9223372036854775808 / -9223372036854775808 = %d, want 1", r) + } + y = -9223372036854775807 + r = x / y + if r != 1 { + t.Errorf("-9223372036854775808 / -9223372036854775807 = %d, want 1", r) + } + y = -4294967296 + r = x / y + if r != 2147483648 { + t.Errorf("-9223372036854775808 / -4294967296 = %d, want 2147483648", r) + } + y = -1 + r = x / y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 / -1 = %d, want -9223372036854775808", r) + } + y = 1 + r = x / y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 / 1 = %d, want -9223372036854775808", r) + } + y = 4294967296 + r = x / y + if r != -2147483648 { + t.Errorf("-9223372036854775808 / 4294967296 = %d, want -2147483648", r) + } + y = 9223372036854775806 + r = x / y + if r != -1 { + t.Errorf("-9223372036854775808 / 9223372036854775806 = %d, want -1", r) + } + y = 9223372036854775807 + r = x / y + if r != -1 { + t.Errorf("-9223372036854775808 / 9223372036854775807 = %d, want -1", r) + } + x = -9223372036854775807 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("-9223372036854775807 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != 1 { + t.Errorf("-9223372036854775807 / -9223372036854775807 = %d, want 1", r) + } + y = -4294967296 + r = x / y + if r != 2147483647 { + t.Errorf("-9223372036854775807 / -4294967296 = %d, want 2147483647", r) + } + y = -1 + r = x / y + if r != 9223372036854775807 { + t.Errorf("-9223372036854775807 / -1 = %d, want 9223372036854775807", r) + } + y = 1 + r = x / y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 / 1 = %d, want -9223372036854775807", r) + } + y = 4294967296 + r = x / y + if r != -2147483647 { + t.Errorf("-9223372036854775807 / 4294967296 = %d, want -2147483647", r) + } + y = 9223372036854775806 + r = x / y + if r != -1 { + t.Errorf("-9223372036854775807 / 9223372036854775806 = %d, want -1", r) + } + y = 9223372036854775807 + r = x / y + if r != -1 { + t.Errorf("-9223372036854775807 / 9223372036854775807 = %d, want -1", r) + } + x = -4294967296 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("-4294967296 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("-4294967296 / -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x / y + if r != 1 { + t.Errorf("-4294967296 / -4294967296 = %d, want 1", r) + } + y = -1 + r = x / y + if r != 4294967296 { + t.Errorf("-4294967296 / -1 = %d, want 4294967296", r) + } + y = 1 + r = x / y + if r != -4294967296 { + t.Errorf("-4294967296 / 1 = %d, want -4294967296", r) + } + y = 4294967296 + r = x / y + if r != -1 { + t.Errorf("-4294967296 / 4294967296 = %d, want -1", r) + } + y = 9223372036854775806 + r = x / y + if r != 0 { + t.Errorf("-4294967296 / 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("-4294967296 / 9223372036854775807 = %d, want 0", r) + } + x = -1 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("-1 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("-1 / -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x / y + if r != 0 { + t.Errorf("-1 / -4294967296 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 1 { + t.Errorf("-1 / -1 = %d, want 1", r) + } + y = 1 + r = x / y + if r != -1 { + t.Errorf("-1 / 1 = %d, want -1", r) + } + y = 4294967296 + r = x / y + if r != 0 { + t.Errorf("-1 / 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x / y + if r != 0 { + t.Errorf("-1 / 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("-1 / 9223372036854775807 = %d, want 0", r) + } + x = 0 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("0 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("0 / -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x / y + if r != 0 { + t.Errorf("0 / -4294967296 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 0 { + t.Errorf("0 / -1 = %d, want 0", r) + } + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 4294967296 + r = x / y + if r != 0 { + t.Errorf("0 / 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x / y + if r != 0 { + t.Errorf("0 / 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("0 / 9223372036854775807 = %d, want 0", r) + } + x = 1 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("1 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("1 / -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x / y + if r != 0 { + t.Errorf("1 / -4294967296 = %d, want 0", r) + } + y = -1 + r = x / y + if r != -1 { + t.Errorf("1 / -1 = %d, want -1", r) + } + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 4294967296 + r = x / y + if r != 0 { + t.Errorf("1 / 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x / y + if r != 0 { + t.Errorf("1 / 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("1 / 9223372036854775807 = %d, want 0", r) + } + x = 4294967296 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("4294967296 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("4294967296 / -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x / y + if r != -1 { + t.Errorf("4294967296 / -4294967296 = %d, want -1", r) + } + y = -1 + r = x / y + if r != -4294967296 { + t.Errorf("4294967296 / -1 = %d, want -4294967296", r) + } + y = 1 + r = x / y + if r != 4294967296 { + t.Errorf("4294967296 / 1 = %d, want 4294967296", r) + } + y = 4294967296 + r = x / y + if r != 1 { + t.Errorf("4294967296 / 4294967296 = %d, want 1", r) + } + y = 9223372036854775806 + r = x / y + if r != 0 { + t.Errorf("4294967296 / 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("4294967296 / 9223372036854775807 = %d, want 0", r) + } + x = 9223372036854775806 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("9223372036854775806 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("9223372036854775806 / -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x / y + if r != -2147483647 { + t.Errorf("9223372036854775806 / -4294967296 = %d, want -2147483647", r) + } + y = -1 + r = x / y + if r != -9223372036854775806 { + t.Errorf("9223372036854775806 / -1 = %d, want -9223372036854775806", r) + } + y = 1 + r = x / y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 / 1 = %d, want 9223372036854775806", r) + } + y = 4294967296 + r = x / y + if r != 2147483647 { + t.Errorf("9223372036854775806 / 4294967296 = %d, want 2147483647", r) + } + y = 9223372036854775806 + r = x / y + if r != 1 { + t.Errorf("9223372036854775806 / 9223372036854775806 = %d, want 1", r) + } + y = 9223372036854775807 + r = x / y + if r != 0 { + t.Errorf("9223372036854775806 / 9223372036854775807 = %d, want 0", r) + } + x = 9223372036854775807 + y = -9223372036854775808 + r = x / y + if r != 0 { + t.Errorf("9223372036854775807 / -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x / y + if r != -1 { + t.Errorf("9223372036854775807 / -9223372036854775807 = %d, want -1", r) + } + y = -4294967296 + r = x / y + if r != -2147483647 { + t.Errorf("9223372036854775807 / -4294967296 = %d, want -2147483647", r) + } + y = -1 + r = x / y + if r != -9223372036854775807 { + t.Errorf("9223372036854775807 / -1 = %d, want -9223372036854775807", r) + } + y = 1 + r = x / y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 / 1 = %d, want 9223372036854775807", r) + } + y = 4294967296 + r = x / y + if r != 2147483647 { + t.Errorf("9223372036854775807 / 4294967296 = %d, want 2147483647", r) + } + y = 9223372036854775806 + r = x / y + if r != 1 { + t.Errorf("9223372036854775807 / 9223372036854775806 = %d, want 1", r) + } + y = 9223372036854775807 + r = x / y + if r != 1 { + t.Errorf("9223372036854775807 / 9223372036854775807 = %d, want 1", r) + } +} +func TestConstFoldint64mul(t *testing.T) { + var x, y, r int64 + x = -9223372036854775808 + y = -9223372036854775808 + r = x * y + if r != 0 { + t.Errorf("-9223372036854775808 * -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x * y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 * -9223372036854775807 = %d, want -9223372036854775808", r) + } + y = -4294967296 + r = x * y + if r != 0 { + t.Errorf("-9223372036854775808 * -4294967296 = %d, want 0", r) + } + y = -1 + r = x * y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 * -1 = %d, want -9223372036854775808", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-9223372036854775808 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 * 1 = %d, want -9223372036854775808", r) + } + y = 4294967296 + r = x * y + if r != 0 { + t.Errorf("-9223372036854775808 * 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x * y + if r != 0 { + t.Errorf("-9223372036854775808 * 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x * y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 * 9223372036854775807 = %d, want -9223372036854775808", r) + } + x = -9223372036854775807 + y = -9223372036854775808 + r = x * y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775807 * -9223372036854775808 = %d, want -9223372036854775808", r) + } + y = -9223372036854775807 + r = x * y + if r != 1 { + t.Errorf("-9223372036854775807 * -9223372036854775807 = %d, want 1", r) + } + y = -4294967296 + r = x * y + if r != -4294967296 { + t.Errorf("-9223372036854775807 * -4294967296 = %d, want -4294967296", r) + } + y = -1 + r = x * y + if r != 9223372036854775807 { + t.Errorf("-9223372036854775807 * -1 = %d, want 9223372036854775807", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-9223372036854775807 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 * 1 = %d, want -9223372036854775807", r) + } + y = 4294967296 + r = x * y + if r != 4294967296 { + t.Errorf("-9223372036854775807 * 4294967296 = %d, want 4294967296", r) + } + y = 9223372036854775806 + r = x * y + if r != 9223372036854775806 { + t.Errorf("-9223372036854775807 * 9223372036854775806 = %d, want 9223372036854775806", r) + } + y = 9223372036854775807 + r = x * y + if r != -1 { + t.Errorf("-9223372036854775807 * 9223372036854775807 = %d, want -1", r) + } + x = -4294967296 + y = -9223372036854775808 + r = x * y + if r != 0 { + t.Errorf("-4294967296 * -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x * y + if r != -4294967296 { + t.Errorf("-4294967296 * -9223372036854775807 = %d, want -4294967296", r) + } + y = -4294967296 + r = x * y + if r != 0 { + t.Errorf("-4294967296 * -4294967296 = %d, want 0", r) + } + y = -1 + r = x * y + if r != 4294967296 { + t.Errorf("-4294967296 * -1 = %d, want 4294967296", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-4294967296 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -4294967296 { + t.Errorf("-4294967296 * 1 = %d, want -4294967296", r) + } + y = 4294967296 + r = x * y + if r != 0 { + t.Errorf("-4294967296 * 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x * y + if r != 8589934592 { + t.Errorf("-4294967296 * 9223372036854775806 = %d, want 8589934592", r) + } + y = 9223372036854775807 + r = x * y + if r != 4294967296 { + t.Errorf("-4294967296 * 9223372036854775807 = %d, want 4294967296", r) + } + x = -1 + y = -9223372036854775808 + r = x * y + if r != -9223372036854775808 { + t.Errorf("-1 * -9223372036854775808 = %d, want -9223372036854775808", r) + } + y = -9223372036854775807 + r = x * y + if r != 9223372036854775807 { + t.Errorf("-1 * -9223372036854775807 = %d, want 9223372036854775807", r) + } + y = -4294967296 + r = x * y + if r != 4294967296 { + t.Errorf("-1 * -4294967296 = %d, want 4294967296", r) + } + y = -1 + r = x * y + if r != 1 { + t.Errorf("-1 * -1 = %d, want 1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -1 { + t.Errorf("-1 * 1 = %d, want -1", r) + } + y = 4294967296 + r = x * y + if r != -4294967296 { + t.Errorf("-1 * 4294967296 = %d, want -4294967296", r) + } + y = 9223372036854775806 + r = x * y + if r != -9223372036854775806 { + t.Errorf("-1 * 9223372036854775806 = %d, want -9223372036854775806", r) + } + y = 9223372036854775807 + r = x * y + if r != -9223372036854775807 { + t.Errorf("-1 * 9223372036854775807 = %d, want -9223372036854775807", r) + } + x = 0 + y = -9223372036854775808 + r = x * y + if r != 0 { + t.Errorf("0 * -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x * y + if r != 0 { + t.Errorf("0 * -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x * y + if r != 0 { + t.Errorf("0 * -4294967296 = %d, want 0", r) + } + y = -1 + r = x * y + if r != 0 { + t.Errorf("0 * -1 = %d, want 0", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 4294967296 + r = x * y + if r != 0 { + t.Errorf("0 * 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x * y + if r != 0 { + t.Errorf("0 * 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x * y + if r != 0 { + t.Errorf("0 * 9223372036854775807 = %d, want 0", r) + } + x = 1 + y = -9223372036854775808 + r = x * y + if r != -9223372036854775808 { + t.Errorf("1 * -9223372036854775808 = %d, want -9223372036854775808", r) + } + y = -9223372036854775807 + r = x * y + if r != -9223372036854775807 { + t.Errorf("1 * -9223372036854775807 = %d, want -9223372036854775807", r) + } + y = -4294967296 + r = x * y + if r != -4294967296 { + t.Errorf("1 * -4294967296 = %d, want -4294967296", r) + } + y = -1 + r = x * y + if r != -1 { + t.Errorf("1 * -1 = %d, want -1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 4294967296 + r = x * y + if r != 4294967296 { + t.Errorf("1 * 4294967296 = %d, want 4294967296", r) + } + y = 9223372036854775806 + r = x * y + if r != 9223372036854775806 { + t.Errorf("1 * 9223372036854775806 = %d, want 9223372036854775806", r) + } + y = 9223372036854775807 + r = x * y + if r != 9223372036854775807 { + t.Errorf("1 * 9223372036854775807 = %d, want 9223372036854775807", r) + } + x = 4294967296 + y = -9223372036854775808 + r = x * y + if r != 0 { + t.Errorf("4294967296 * -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x * y + if r != 4294967296 { + t.Errorf("4294967296 * -9223372036854775807 = %d, want 4294967296", r) + } + y = -4294967296 + r = x * y + if r != 0 { + t.Errorf("4294967296 * -4294967296 = %d, want 0", r) + } + y = -1 + r = x * y + if r != -4294967296 { + t.Errorf("4294967296 * -1 = %d, want -4294967296", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("4294967296 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 4294967296 { + t.Errorf("4294967296 * 1 = %d, want 4294967296", r) + } + y = 4294967296 + r = x * y + if r != 0 { + t.Errorf("4294967296 * 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x * y + if r != -8589934592 { + t.Errorf("4294967296 * 9223372036854775806 = %d, want -8589934592", r) + } + y = 9223372036854775807 + r = x * y + if r != -4294967296 { + t.Errorf("4294967296 * 9223372036854775807 = %d, want -4294967296", r) + } + x = 9223372036854775806 + y = -9223372036854775808 + r = x * y + if r != 0 { + t.Errorf("9223372036854775806 * -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x * y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 * -9223372036854775807 = %d, want 9223372036854775806", r) + } + y = -4294967296 + r = x * y + if r != 8589934592 { + t.Errorf("9223372036854775806 * -4294967296 = %d, want 8589934592", r) + } + y = -1 + r = x * y + if r != -9223372036854775806 { + t.Errorf("9223372036854775806 * -1 = %d, want -9223372036854775806", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("9223372036854775806 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 * 1 = %d, want 9223372036854775806", r) + } + y = 4294967296 + r = x * y + if r != -8589934592 { + t.Errorf("9223372036854775806 * 4294967296 = %d, want -8589934592", r) + } + y = 9223372036854775806 + r = x * y + if r != 4 { + t.Errorf("9223372036854775806 * 9223372036854775806 = %d, want 4", r) + } + y = 9223372036854775807 + r = x * y + if r != -9223372036854775806 { + t.Errorf("9223372036854775806 * 9223372036854775807 = %d, want -9223372036854775806", r) + } + x = 9223372036854775807 + y = -9223372036854775808 + r = x * y + if r != -9223372036854775808 { + t.Errorf("9223372036854775807 * -9223372036854775808 = %d, want -9223372036854775808", r) + } + y = -9223372036854775807 + r = x * y + if r != -1 { + t.Errorf("9223372036854775807 * -9223372036854775807 = %d, want -1", r) + } + y = -4294967296 + r = x * y + if r != 4294967296 { + t.Errorf("9223372036854775807 * -4294967296 = %d, want 4294967296", r) + } + y = -1 + r = x * y + if r != -9223372036854775807 { + t.Errorf("9223372036854775807 * -1 = %d, want -9223372036854775807", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("9223372036854775807 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 * 1 = %d, want 9223372036854775807", r) + } + y = 4294967296 + r = x * y + if r != -4294967296 { + t.Errorf("9223372036854775807 * 4294967296 = %d, want -4294967296", r) + } + y = 9223372036854775806 + r = x * y + if r != -9223372036854775806 { + t.Errorf("9223372036854775807 * 9223372036854775806 = %d, want -9223372036854775806", r) + } + y = 9223372036854775807 + r = x * y + if r != 1 { + t.Errorf("9223372036854775807 * 9223372036854775807 = %d, want 1", r) + } +} +func TestConstFoldint64mod(t *testing.T) { + var x, y, r int64 + x = -9223372036854775808 + y = -9223372036854775808 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775808 % -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x % y + if r != -1 { + t.Errorf("-9223372036854775808 % -9223372036854775807 = %d, want -1", r) + } + y = -4294967296 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775808 % -4294967296 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775808 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775808 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775808 % 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x % y + if r != -2 { + t.Errorf("-9223372036854775808 % 9223372036854775806 = %d, want -2", r) + } + y = 9223372036854775807 + r = x % y + if r != -1 { + t.Errorf("-9223372036854775808 % 9223372036854775807 = %d, want -1", r) + } + x = -9223372036854775807 + y = -9223372036854775808 + r = x % y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 % -9223372036854775808 = %d, want -9223372036854775807", r) + } + y = -9223372036854775807 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775807 % -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x % y + if r != -4294967295 { + t.Errorf("-9223372036854775807 % -4294967296 = %d, want -4294967295", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775807 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775807 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != -4294967295 { + t.Errorf("-9223372036854775807 % 4294967296 = %d, want -4294967295", r) + } + y = 9223372036854775806 + r = x % y + if r != -1 { + t.Errorf("-9223372036854775807 % 9223372036854775806 = %d, want -1", r) + } + y = 9223372036854775807 + r = x % y + if r != 0 { + t.Errorf("-9223372036854775807 % 9223372036854775807 = %d, want 0", r) + } + x = -4294967296 + y = -9223372036854775808 + r = x % y + if r != -4294967296 { + t.Errorf("-4294967296 % -9223372036854775808 = %d, want -4294967296", r) + } + y = -9223372036854775807 + r = x % y + if r != -4294967296 { + t.Errorf("-4294967296 % -9223372036854775807 = %d, want -4294967296", r) + } + y = -4294967296 + r = x % y + if r != 0 { + t.Errorf("-4294967296 % -4294967296 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-4294967296 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-4294967296 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 0 { + t.Errorf("-4294967296 % 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x % y + if r != -4294967296 { + t.Errorf("-4294967296 % 9223372036854775806 = %d, want -4294967296", r) + } + y = 9223372036854775807 + r = x % y + if r != -4294967296 { + t.Errorf("-4294967296 % 9223372036854775807 = %d, want -4294967296", r) + } + x = -1 + y = -9223372036854775808 + r = x % y + if r != -1 { + t.Errorf("-1 % -9223372036854775808 = %d, want -1", r) + } + y = -9223372036854775807 + r = x % y + if r != -1 { + t.Errorf("-1 % -9223372036854775807 = %d, want -1", r) + } + y = -4294967296 + r = x % y + if r != -1 { + t.Errorf("-1 % -4294967296 = %d, want -1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-1 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != -1 { + t.Errorf("-1 % 4294967296 = %d, want -1", r) + } + y = 9223372036854775806 + r = x % y + if r != -1 { + t.Errorf("-1 % 9223372036854775806 = %d, want -1", r) + } + y = 9223372036854775807 + r = x % y + if r != -1 { + t.Errorf("-1 % 9223372036854775807 = %d, want -1", r) + } + x = 0 + y = -9223372036854775808 + r = x % y + if r != 0 { + t.Errorf("0 % -9223372036854775808 = %d, want 0", r) + } + y = -9223372036854775807 + r = x % y + if r != 0 { + t.Errorf("0 % -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x % y + if r != 0 { + t.Errorf("0 % -4294967296 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("0 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 0 { + t.Errorf("0 % 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x % y + if r != 0 { + t.Errorf("0 % 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x % y + if r != 0 { + t.Errorf("0 % 9223372036854775807 = %d, want 0", r) + } + x = 1 + y = -9223372036854775808 + r = x % y + if r != 1 { + t.Errorf("1 % -9223372036854775808 = %d, want 1", r) + } + y = -9223372036854775807 + r = x % y + if r != 1 { + t.Errorf("1 % -9223372036854775807 = %d, want 1", r) + } + y = -4294967296 + r = x % y + if r != 1 { + t.Errorf("1 % -4294967296 = %d, want 1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 1 { + t.Errorf("1 % 4294967296 = %d, want 1", r) + } + y = 9223372036854775806 + r = x % y + if r != 1 { + t.Errorf("1 % 9223372036854775806 = %d, want 1", r) + } + y = 9223372036854775807 + r = x % y + if r != 1 { + t.Errorf("1 % 9223372036854775807 = %d, want 1", r) + } + x = 4294967296 + y = -9223372036854775808 + r = x % y + if r != 4294967296 { + t.Errorf("4294967296 % -9223372036854775808 = %d, want 4294967296", r) + } + y = -9223372036854775807 + r = x % y + if r != 4294967296 { + t.Errorf("4294967296 % -9223372036854775807 = %d, want 4294967296", r) + } + y = -4294967296 + r = x % y + if r != 0 { + t.Errorf("4294967296 % -4294967296 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("4294967296 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("4294967296 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 0 { + t.Errorf("4294967296 % 4294967296 = %d, want 0", r) + } + y = 9223372036854775806 + r = x % y + if r != 4294967296 { + t.Errorf("4294967296 % 9223372036854775806 = %d, want 4294967296", r) + } + y = 9223372036854775807 + r = x % y + if r != 4294967296 { + t.Errorf("4294967296 % 9223372036854775807 = %d, want 4294967296", r) + } + x = 9223372036854775806 + y = -9223372036854775808 + r = x % y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 % -9223372036854775808 = %d, want 9223372036854775806", r) + } + y = -9223372036854775807 + r = x % y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 % -9223372036854775807 = %d, want 9223372036854775806", r) + } + y = -4294967296 + r = x % y + if r != 4294967294 { + t.Errorf("9223372036854775806 % -4294967296 = %d, want 4294967294", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("9223372036854775806 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("9223372036854775806 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 4294967294 { + t.Errorf("9223372036854775806 % 4294967296 = %d, want 4294967294", r) + } + y = 9223372036854775806 + r = x % y + if r != 0 { + t.Errorf("9223372036854775806 % 9223372036854775806 = %d, want 0", r) + } + y = 9223372036854775807 + r = x % y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 % 9223372036854775807 = %d, want 9223372036854775806", r) + } + x = 9223372036854775807 + y = -9223372036854775808 + r = x % y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 % -9223372036854775808 = %d, want 9223372036854775807", r) + } + y = -9223372036854775807 + r = x % y + if r != 0 { + t.Errorf("9223372036854775807 % -9223372036854775807 = %d, want 0", r) + } + y = -4294967296 + r = x % y + if r != 4294967295 { + t.Errorf("9223372036854775807 % -4294967296 = %d, want 4294967295", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("9223372036854775807 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("9223372036854775807 % 1 = %d, want 0", r) + } + y = 4294967296 + r = x % y + if r != 4294967295 { + t.Errorf("9223372036854775807 % 4294967296 = %d, want 4294967295", r) + } + y = 9223372036854775806 + r = x % y + if r != 1 { + t.Errorf("9223372036854775807 % 9223372036854775806 = %d, want 1", r) + } + y = 9223372036854775807 + r = x % y + if r != 0 { + t.Errorf("9223372036854775807 % 9223372036854775807 = %d, want 0", r) + } +} +func TestConstFolduint32add(t *testing.T) { + var x, y, r uint32 + x = 0 + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 4294967295 + r = x + y + if r != 4294967295 { + t.Errorf("0 + 4294967295 = %d, want 4294967295", r) + } + x = 1 + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 4294967295 + r = x + y + if r != 0 { + t.Errorf("1 + 4294967295 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x + y + if r != 4294967295 { + t.Errorf("4294967295 + 0 = %d, want 4294967295", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("4294967295 + 1 = %d, want 0", r) + } + y = 4294967295 + r = x + y + if r != 4294967294 { + t.Errorf("4294967295 + 4294967295 = %d, want 4294967294", r) + } +} +func TestConstFolduint32sub(t *testing.T) { + var x, y, r uint32 + x = 0 + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != 4294967295 { + t.Errorf("0 - 1 = %d, want 4294967295", r) + } + y = 4294967295 + r = x - y + if r != 1 { + t.Errorf("0 - 4294967295 = %d, want 1", r) + } + x = 1 + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 4294967295 + r = x - y + if r != 2 { + t.Errorf("1 - 4294967295 = %d, want 2", r) + } + x = 4294967295 + y = 0 + r = x - y + if r != 4294967295 { + t.Errorf("4294967295 - 0 = %d, want 4294967295", r) + } + y = 1 + r = x - y + if r != 4294967294 { + t.Errorf("4294967295 - 1 = %d, want 4294967294", r) + } + y = 4294967295 + r = x - y + if r != 0 { + t.Errorf("4294967295 - 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint32div(t *testing.T) { + var x, y, r uint32 + x = 0 + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 4294967295 + r = x / y + if r != 0 { + t.Errorf("0 / 4294967295 = %d, want 0", r) + } + x = 1 + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 4294967295 + r = x / y + if r != 0 { + t.Errorf("1 / 4294967295 = %d, want 0", r) + } + x = 4294967295 + y = 1 + r = x / y + if r != 4294967295 { + t.Errorf("4294967295 / 1 = %d, want 4294967295", r) + } + y = 4294967295 + r = x / y + if r != 1 { + t.Errorf("4294967295 / 4294967295 = %d, want 1", r) + } +} +func TestConstFolduint32mul(t *testing.T) { + var x, y, r uint32 + x = 0 + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 4294967295 + r = x * y + if r != 0 { + t.Errorf("0 * 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 4294967295 + r = x * y + if r != 4294967295 { + t.Errorf("1 * 4294967295 = %d, want 4294967295", r) + } + x = 4294967295 + y = 0 + r = x * y + if r != 0 { + t.Errorf("4294967295 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 4294967295 { + t.Errorf("4294967295 * 1 = %d, want 4294967295", r) + } + y = 4294967295 + r = x * y + if r != 1 { + t.Errorf("4294967295 * 4294967295 = %d, want 1", r) + } +} +func TestConstFolduint32mod(t *testing.T) { + var x, y, r uint32 + x = 0 + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 4294967295 + r = x % y + if r != 0 { + t.Errorf("0 % 4294967295 = %d, want 0", r) + } + x = 1 + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 4294967295 + r = x % y + if r != 1 { + t.Errorf("1 % 4294967295 = %d, want 1", r) + } + x = 4294967295 + y = 1 + r = x % y + if r != 0 { + t.Errorf("4294967295 % 1 = %d, want 0", r) + } + y = 4294967295 + r = x % y + if r != 0 { + t.Errorf("4294967295 % 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint32add(t *testing.T) { + var x, y, r int32 + x = -2147483648 + y = -2147483648 + r = x + y + if r != 0 { + t.Errorf("-2147483648 + -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x + y + if r != 1 { + t.Errorf("-2147483648 + -2147483647 = %d, want 1", r) + } + y = -1 + r = x + y + if r != 2147483647 { + t.Errorf("-2147483648 + -1 = %d, want 2147483647", r) + } + y = 0 + r = x + y + if r != -2147483648 { + t.Errorf("-2147483648 + 0 = %d, want -2147483648", r) + } + y = 1 + r = x + y + if r != -2147483647 { + t.Errorf("-2147483648 + 1 = %d, want -2147483647", r) + } + y = 2147483647 + r = x + y + if r != -1 { + t.Errorf("-2147483648 + 2147483647 = %d, want -1", r) + } + x = -2147483647 + y = -2147483648 + r = x + y + if r != 1 { + t.Errorf("-2147483647 + -2147483648 = %d, want 1", r) + } + y = -2147483647 + r = x + y + if r != 2 { + t.Errorf("-2147483647 + -2147483647 = %d, want 2", r) + } + y = -1 + r = x + y + if r != -2147483648 { + t.Errorf("-2147483647 + -1 = %d, want -2147483648", r) + } + y = 0 + r = x + y + if r != -2147483647 { + t.Errorf("-2147483647 + 0 = %d, want -2147483647", r) + } + y = 1 + r = x + y + if r != -2147483646 { + t.Errorf("-2147483647 + 1 = %d, want -2147483646", r) + } + y = 2147483647 + r = x + y + if r != 0 { + t.Errorf("-2147483647 + 2147483647 = %d, want 0", r) + } + x = -1 + y = -2147483648 + r = x + y + if r != 2147483647 { + t.Errorf("-1 + -2147483648 = %d, want 2147483647", r) + } + y = -2147483647 + r = x + y + if r != -2147483648 { + t.Errorf("-1 + -2147483647 = %d, want -2147483648", r) + } + y = -1 + r = x + y + if r != -2 { + t.Errorf("-1 + -1 = %d, want -2", r) + } + y = 0 + r = x + y + if r != -1 { + t.Errorf("-1 + 0 = %d, want -1", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("-1 + 1 = %d, want 0", r) + } + y = 2147483647 + r = x + y + if r != 2147483646 { + t.Errorf("-1 + 2147483647 = %d, want 2147483646", r) + } + x = 0 + y = -2147483648 + r = x + y + if r != -2147483648 { + t.Errorf("0 + -2147483648 = %d, want -2147483648", r) + } + y = -2147483647 + r = x + y + if r != -2147483647 { + t.Errorf("0 + -2147483647 = %d, want -2147483647", r) + } + y = -1 + r = x + y + if r != -1 { + t.Errorf("0 + -1 = %d, want -1", r) + } + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 2147483647 + r = x + y + if r != 2147483647 { + t.Errorf("0 + 2147483647 = %d, want 2147483647", r) + } + x = 1 + y = -2147483648 + r = x + y + if r != -2147483647 { + t.Errorf("1 + -2147483648 = %d, want -2147483647", r) + } + y = -2147483647 + r = x + y + if r != -2147483646 { + t.Errorf("1 + -2147483647 = %d, want -2147483646", r) + } + y = -1 + r = x + y + if r != 0 { + t.Errorf("1 + -1 = %d, want 0", r) + } + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 2147483647 + r = x + y + if r != -2147483648 { + t.Errorf("1 + 2147483647 = %d, want -2147483648", r) + } + x = 2147483647 + y = -2147483648 + r = x + y + if r != -1 { + t.Errorf("2147483647 + -2147483648 = %d, want -1", r) + } + y = -2147483647 + r = x + y + if r != 0 { + t.Errorf("2147483647 + -2147483647 = %d, want 0", r) + } + y = -1 + r = x + y + if r != 2147483646 { + t.Errorf("2147483647 + -1 = %d, want 2147483646", r) + } + y = 0 + r = x + y + if r != 2147483647 { + t.Errorf("2147483647 + 0 = %d, want 2147483647", r) + } + y = 1 + r = x + y + if r != -2147483648 { + t.Errorf("2147483647 + 1 = %d, want -2147483648", r) + } + y = 2147483647 + r = x + y + if r != -2 { + t.Errorf("2147483647 + 2147483647 = %d, want -2", r) + } +} +func TestConstFoldint32sub(t *testing.T) { + var x, y, r int32 + x = -2147483648 + y = -2147483648 + r = x - y + if r != 0 { + t.Errorf("-2147483648 - -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x - y + if r != -1 { + t.Errorf("-2147483648 - -2147483647 = %d, want -1", r) + } + y = -1 + r = x - y + if r != -2147483647 { + t.Errorf("-2147483648 - -1 = %d, want -2147483647", r) + } + y = 0 + r = x - y + if r != -2147483648 { + t.Errorf("-2147483648 - 0 = %d, want -2147483648", r) + } + y = 1 + r = x - y + if r != 2147483647 { + t.Errorf("-2147483648 - 1 = %d, want 2147483647", r) + } + y = 2147483647 + r = x - y + if r != 1 { + t.Errorf("-2147483648 - 2147483647 = %d, want 1", r) + } + x = -2147483647 + y = -2147483648 + r = x - y + if r != 1 { + t.Errorf("-2147483647 - -2147483648 = %d, want 1", r) + } + y = -2147483647 + r = x - y + if r != 0 { + t.Errorf("-2147483647 - -2147483647 = %d, want 0", r) + } + y = -1 + r = x - y + if r != -2147483646 { + t.Errorf("-2147483647 - -1 = %d, want -2147483646", r) + } + y = 0 + r = x - y + if r != -2147483647 { + t.Errorf("-2147483647 - 0 = %d, want -2147483647", r) + } + y = 1 + r = x - y + if r != -2147483648 { + t.Errorf("-2147483647 - 1 = %d, want -2147483648", r) + } + y = 2147483647 + r = x - y + if r != 2 { + t.Errorf("-2147483647 - 2147483647 = %d, want 2", r) + } + x = -1 + y = -2147483648 + r = x - y + if r != 2147483647 { + t.Errorf("-1 - -2147483648 = %d, want 2147483647", r) + } + y = -2147483647 + r = x - y + if r != 2147483646 { + t.Errorf("-1 - -2147483647 = %d, want 2147483646", r) + } + y = -1 + r = x - y + if r != 0 { + t.Errorf("-1 - -1 = %d, want 0", r) + } + y = 0 + r = x - y + if r != -1 { + t.Errorf("-1 - 0 = %d, want -1", r) + } + y = 1 + r = x - y + if r != -2 { + t.Errorf("-1 - 1 = %d, want -2", r) + } + y = 2147483647 + r = x - y + if r != -2147483648 { + t.Errorf("-1 - 2147483647 = %d, want -2147483648", r) + } + x = 0 + y = -2147483648 + r = x - y + if r != -2147483648 { + t.Errorf("0 - -2147483648 = %d, want -2147483648", r) + } + y = -2147483647 + r = x - y + if r != 2147483647 { + t.Errorf("0 - -2147483647 = %d, want 2147483647", r) + } + y = -1 + r = x - y + if r != 1 { + t.Errorf("0 - -1 = %d, want 1", r) + } + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != -1 { + t.Errorf("0 - 1 = %d, want -1", r) + } + y = 2147483647 + r = x - y + if r != -2147483647 { + t.Errorf("0 - 2147483647 = %d, want -2147483647", r) + } + x = 1 + y = -2147483648 + r = x - y + if r != -2147483647 { + t.Errorf("1 - -2147483648 = %d, want -2147483647", r) + } + y = -2147483647 + r = x - y + if r != -2147483648 { + t.Errorf("1 - -2147483647 = %d, want -2147483648", r) + } + y = -1 + r = x - y + if r != 2 { + t.Errorf("1 - -1 = %d, want 2", r) + } + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 2147483647 + r = x - y + if r != -2147483646 { + t.Errorf("1 - 2147483647 = %d, want -2147483646", r) + } + x = 2147483647 + y = -2147483648 + r = x - y + if r != -1 { + t.Errorf("2147483647 - -2147483648 = %d, want -1", r) + } + y = -2147483647 + r = x - y + if r != -2 { + t.Errorf("2147483647 - -2147483647 = %d, want -2", r) + } + y = -1 + r = x - y + if r != -2147483648 { + t.Errorf("2147483647 - -1 = %d, want -2147483648", r) + } + y = 0 + r = x - y + if r != 2147483647 { + t.Errorf("2147483647 - 0 = %d, want 2147483647", r) + } + y = 1 + r = x - y + if r != 2147483646 { + t.Errorf("2147483647 - 1 = %d, want 2147483646", r) + } + y = 2147483647 + r = x - y + if r != 0 { + t.Errorf("2147483647 - 2147483647 = %d, want 0", r) + } +} +func TestConstFoldint32div(t *testing.T) { + var x, y, r int32 + x = -2147483648 + y = -2147483648 + r = x / y + if r != 1 { + t.Errorf("-2147483648 / -2147483648 = %d, want 1", r) + } + y = -2147483647 + r = x / y + if r != 1 { + t.Errorf("-2147483648 / -2147483647 = %d, want 1", r) + } + y = -1 + r = x / y + if r != -2147483648 { + t.Errorf("-2147483648 / -1 = %d, want -2147483648", r) + } + y = 1 + r = x / y + if r != -2147483648 { + t.Errorf("-2147483648 / 1 = %d, want -2147483648", r) + } + y = 2147483647 + r = x / y + if r != -1 { + t.Errorf("-2147483648 / 2147483647 = %d, want -1", r) + } + x = -2147483647 + y = -2147483648 + r = x / y + if r != 0 { + t.Errorf("-2147483647 / -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x / y + if r != 1 { + t.Errorf("-2147483647 / -2147483647 = %d, want 1", r) + } + y = -1 + r = x / y + if r != 2147483647 { + t.Errorf("-2147483647 / -1 = %d, want 2147483647", r) + } + y = 1 + r = x / y + if r != -2147483647 { + t.Errorf("-2147483647 / 1 = %d, want -2147483647", r) + } + y = 2147483647 + r = x / y + if r != -1 { + t.Errorf("-2147483647 / 2147483647 = %d, want -1", r) + } + x = -1 + y = -2147483648 + r = x / y + if r != 0 { + t.Errorf("-1 / -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x / y + if r != 0 { + t.Errorf("-1 / -2147483647 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 1 { + t.Errorf("-1 / -1 = %d, want 1", r) + } + y = 1 + r = x / y + if r != -1 { + t.Errorf("-1 / 1 = %d, want -1", r) + } + y = 2147483647 + r = x / y + if r != 0 { + t.Errorf("-1 / 2147483647 = %d, want 0", r) + } + x = 0 + y = -2147483648 + r = x / y + if r != 0 { + t.Errorf("0 / -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x / y + if r != 0 { + t.Errorf("0 / -2147483647 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 0 { + t.Errorf("0 / -1 = %d, want 0", r) + } + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 2147483647 + r = x / y + if r != 0 { + t.Errorf("0 / 2147483647 = %d, want 0", r) + } + x = 1 + y = -2147483648 + r = x / y + if r != 0 { + t.Errorf("1 / -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x / y + if r != 0 { + t.Errorf("1 / -2147483647 = %d, want 0", r) + } + y = -1 + r = x / y + if r != -1 { + t.Errorf("1 / -1 = %d, want -1", r) + } + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 2147483647 + r = x / y + if r != 0 { + t.Errorf("1 / 2147483647 = %d, want 0", r) + } + x = 2147483647 + y = -2147483648 + r = x / y + if r != 0 { + t.Errorf("2147483647 / -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x / y + if r != -1 { + t.Errorf("2147483647 / -2147483647 = %d, want -1", r) + } + y = -1 + r = x / y + if r != -2147483647 { + t.Errorf("2147483647 / -1 = %d, want -2147483647", r) + } + y = 1 + r = x / y + if r != 2147483647 { + t.Errorf("2147483647 / 1 = %d, want 2147483647", r) + } + y = 2147483647 + r = x / y + if r != 1 { + t.Errorf("2147483647 / 2147483647 = %d, want 1", r) + } +} +func TestConstFoldint32mul(t *testing.T) { + var x, y, r int32 + x = -2147483648 + y = -2147483648 + r = x * y + if r != 0 { + t.Errorf("-2147483648 * -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x * y + if r != -2147483648 { + t.Errorf("-2147483648 * -2147483647 = %d, want -2147483648", r) + } + y = -1 + r = x * y + if r != -2147483648 { + t.Errorf("-2147483648 * -1 = %d, want -2147483648", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-2147483648 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -2147483648 { + t.Errorf("-2147483648 * 1 = %d, want -2147483648", r) + } + y = 2147483647 + r = x * y + if r != -2147483648 { + t.Errorf("-2147483648 * 2147483647 = %d, want -2147483648", r) + } + x = -2147483647 + y = -2147483648 + r = x * y + if r != -2147483648 { + t.Errorf("-2147483647 * -2147483648 = %d, want -2147483648", r) + } + y = -2147483647 + r = x * y + if r != 1 { + t.Errorf("-2147483647 * -2147483647 = %d, want 1", r) + } + y = -1 + r = x * y + if r != 2147483647 { + t.Errorf("-2147483647 * -1 = %d, want 2147483647", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-2147483647 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -2147483647 { + t.Errorf("-2147483647 * 1 = %d, want -2147483647", r) + } + y = 2147483647 + r = x * y + if r != -1 { + t.Errorf("-2147483647 * 2147483647 = %d, want -1", r) + } + x = -1 + y = -2147483648 + r = x * y + if r != -2147483648 { + t.Errorf("-1 * -2147483648 = %d, want -2147483648", r) + } + y = -2147483647 + r = x * y + if r != 2147483647 { + t.Errorf("-1 * -2147483647 = %d, want 2147483647", r) + } + y = -1 + r = x * y + if r != 1 { + t.Errorf("-1 * -1 = %d, want 1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -1 { + t.Errorf("-1 * 1 = %d, want -1", r) + } + y = 2147483647 + r = x * y + if r != -2147483647 { + t.Errorf("-1 * 2147483647 = %d, want -2147483647", r) + } + x = 0 + y = -2147483648 + r = x * y + if r != 0 { + t.Errorf("0 * -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x * y + if r != 0 { + t.Errorf("0 * -2147483647 = %d, want 0", r) + } + y = -1 + r = x * y + if r != 0 { + t.Errorf("0 * -1 = %d, want 0", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 2147483647 + r = x * y + if r != 0 { + t.Errorf("0 * 2147483647 = %d, want 0", r) + } + x = 1 + y = -2147483648 + r = x * y + if r != -2147483648 { + t.Errorf("1 * -2147483648 = %d, want -2147483648", r) + } + y = -2147483647 + r = x * y + if r != -2147483647 { + t.Errorf("1 * -2147483647 = %d, want -2147483647", r) + } + y = -1 + r = x * y + if r != -1 { + t.Errorf("1 * -1 = %d, want -1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 2147483647 + r = x * y + if r != 2147483647 { + t.Errorf("1 * 2147483647 = %d, want 2147483647", r) + } + x = 2147483647 + y = -2147483648 + r = x * y + if r != -2147483648 { + t.Errorf("2147483647 * -2147483648 = %d, want -2147483648", r) + } + y = -2147483647 + r = x * y + if r != -1 { + t.Errorf("2147483647 * -2147483647 = %d, want -1", r) + } + y = -1 + r = x * y + if r != -2147483647 { + t.Errorf("2147483647 * -1 = %d, want -2147483647", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("2147483647 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 2147483647 { + t.Errorf("2147483647 * 1 = %d, want 2147483647", r) + } + y = 2147483647 + r = x * y + if r != 1 { + t.Errorf("2147483647 * 2147483647 = %d, want 1", r) + } +} +func TestConstFoldint32mod(t *testing.T) { + var x, y, r int32 + x = -2147483648 + y = -2147483648 + r = x % y + if r != 0 { + t.Errorf("-2147483648 % -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x % y + if r != -1 { + t.Errorf("-2147483648 % -2147483647 = %d, want -1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-2147483648 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-2147483648 % 1 = %d, want 0", r) + } + y = 2147483647 + r = x % y + if r != -1 { + t.Errorf("-2147483648 % 2147483647 = %d, want -1", r) + } + x = -2147483647 + y = -2147483648 + r = x % y + if r != -2147483647 { + t.Errorf("-2147483647 % -2147483648 = %d, want -2147483647", r) + } + y = -2147483647 + r = x % y + if r != 0 { + t.Errorf("-2147483647 % -2147483647 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-2147483647 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-2147483647 % 1 = %d, want 0", r) + } + y = 2147483647 + r = x % y + if r != 0 { + t.Errorf("-2147483647 % 2147483647 = %d, want 0", r) + } + x = -1 + y = -2147483648 + r = x % y + if r != -1 { + t.Errorf("-1 % -2147483648 = %d, want -1", r) + } + y = -2147483647 + r = x % y + if r != -1 { + t.Errorf("-1 % -2147483647 = %d, want -1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-1 % 1 = %d, want 0", r) + } + y = 2147483647 + r = x % y + if r != -1 { + t.Errorf("-1 % 2147483647 = %d, want -1", r) + } + x = 0 + y = -2147483648 + r = x % y + if r != 0 { + t.Errorf("0 % -2147483648 = %d, want 0", r) + } + y = -2147483647 + r = x % y + if r != 0 { + t.Errorf("0 % -2147483647 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("0 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 2147483647 + r = x % y + if r != 0 { + t.Errorf("0 % 2147483647 = %d, want 0", r) + } + x = 1 + y = -2147483648 + r = x % y + if r != 1 { + t.Errorf("1 % -2147483648 = %d, want 1", r) + } + y = -2147483647 + r = x % y + if r != 1 { + t.Errorf("1 % -2147483647 = %d, want 1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 2147483647 + r = x % y + if r != 1 { + t.Errorf("1 % 2147483647 = %d, want 1", r) + } + x = 2147483647 + y = -2147483648 + r = x % y + if r != 2147483647 { + t.Errorf("2147483647 % -2147483648 = %d, want 2147483647", r) + } + y = -2147483647 + r = x % y + if r != 0 { + t.Errorf("2147483647 % -2147483647 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("2147483647 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("2147483647 % 1 = %d, want 0", r) + } + y = 2147483647 + r = x % y + if r != 0 { + t.Errorf("2147483647 % 2147483647 = %d, want 0", r) + } +} +func TestConstFolduint16add(t *testing.T) { + var x, y, r uint16 + x = 0 + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 65535 + r = x + y + if r != 65535 { + t.Errorf("0 + 65535 = %d, want 65535", r) + } + x = 1 + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 65535 + r = x + y + if r != 0 { + t.Errorf("1 + 65535 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x + y + if r != 65535 { + t.Errorf("65535 + 0 = %d, want 65535", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("65535 + 1 = %d, want 0", r) + } + y = 65535 + r = x + y + if r != 65534 { + t.Errorf("65535 + 65535 = %d, want 65534", r) + } +} +func TestConstFolduint16sub(t *testing.T) { + var x, y, r uint16 + x = 0 + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != 65535 { + t.Errorf("0 - 1 = %d, want 65535", r) + } + y = 65535 + r = x - y + if r != 1 { + t.Errorf("0 - 65535 = %d, want 1", r) + } + x = 1 + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 65535 + r = x - y + if r != 2 { + t.Errorf("1 - 65535 = %d, want 2", r) + } + x = 65535 + y = 0 + r = x - y + if r != 65535 { + t.Errorf("65535 - 0 = %d, want 65535", r) + } + y = 1 + r = x - y + if r != 65534 { + t.Errorf("65535 - 1 = %d, want 65534", r) + } + y = 65535 + r = x - y + if r != 0 { + t.Errorf("65535 - 65535 = %d, want 0", r) + } +} +func TestConstFolduint16div(t *testing.T) { + var x, y, r uint16 + x = 0 + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 65535 + r = x / y + if r != 0 { + t.Errorf("0 / 65535 = %d, want 0", r) + } + x = 1 + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 65535 + r = x / y + if r != 0 { + t.Errorf("1 / 65535 = %d, want 0", r) + } + x = 65535 + y = 1 + r = x / y + if r != 65535 { + t.Errorf("65535 / 1 = %d, want 65535", r) + } + y = 65535 + r = x / y + if r != 1 { + t.Errorf("65535 / 65535 = %d, want 1", r) + } +} +func TestConstFolduint16mul(t *testing.T) { + var x, y, r uint16 + x = 0 + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 65535 + r = x * y + if r != 0 { + t.Errorf("0 * 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 65535 + r = x * y + if r != 65535 { + t.Errorf("1 * 65535 = %d, want 65535", r) + } + x = 65535 + y = 0 + r = x * y + if r != 0 { + t.Errorf("65535 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 65535 { + t.Errorf("65535 * 1 = %d, want 65535", r) + } + y = 65535 + r = x * y + if r != 1 { + t.Errorf("65535 * 65535 = %d, want 1", r) + } +} +func TestConstFolduint16mod(t *testing.T) { + var x, y, r uint16 + x = 0 + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 65535 + r = x % y + if r != 0 { + t.Errorf("0 % 65535 = %d, want 0", r) + } + x = 1 + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 65535 + r = x % y + if r != 1 { + t.Errorf("1 % 65535 = %d, want 1", r) + } + x = 65535 + y = 1 + r = x % y + if r != 0 { + t.Errorf("65535 % 1 = %d, want 0", r) + } + y = 65535 + r = x % y + if r != 0 { + t.Errorf("65535 % 65535 = %d, want 0", r) + } +} +func TestConstFoldint16add(t *testing.T) { + var x, y, r int16 + x = -32768 + y = -32768 + r = x + y + if r != 0 { + t.Errorf("-32768 + -32768 = %d, want 0", r) + } + y = -32767 + r = x + y + if r != 1 { + t.Errorf("-32768 + -32767 = %d, want 1", r) + } + y = -1 + r = x + y + if r != 32767 { + t.Errorf("-32768 + -1 = %d, want 32767", r) + } + y = 0 + r = x + y + if r != -32768 { + t.Errorf("-32768 + 0 = %d, want -32768", r) + } + y = 1 + r = x + y + if r != -32767 { + t.Errorf("-32768 + 1 = %d, want -32767", r) + } + y = 32766 + r = x + y + if r != -2 { + t.Errorf("-32768 + 32766 = %d, want -2", r) + } + y = 32767 + r = x + y + if r != -1 { + t.Errorf("-32768 + 32767 = %d, want -1", r) + } + x = -32767 + y = -32768 + r = x + y + if r != 1 { + t.Errorf("-32767 + -32768 = %d, want 1", r) + } + y = -32767 + r = x + y + if r != 2 { + t.Errorf("-32767 + -32767 = %d, want 2", r) + } + y = -1 + r = x + y + if r != -32768 { + t.Errorf("-32767 + -1 = %d, want -32768", r) + } + y = 0 + r = x + y + if r != -32767 { + t.Errorf("-32767 + 0 = %d, want -32767", r) + } + y = 1 + r = x + y + if r != -32766 { + t.Errorf("-32767 + 1 = %d, want -32766", r) + } + y = 32766 + r = x + y + if r != -1 { + t.Errorf("-32767 + 32766 = %d, want -1", r) + } + y = 32767 + r = x + y + if r != 0 { + t.Errorf("-32767 + 32767 = %d, want 0", r) + } + x = -1 + y = -32768 + r = x + y + if r != 32767 { + t.Errorf("-1 + -32768 = %d, want 32767", r) + } + y = -32767 + r = x + y + if r != -32768 { + t.Errorf("-1 + -32767 = %d, want -32768", r) + } + y = -1 + r = x + y + if r != -2 { + t.Errorf("-1 + -1 = %d, want -2", r) + } + y = 0 + r = x + y + if r != -1 { + t.Errorf("-1 + 0 = %d, want -1", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("-1 + 1 = %d, want 0", r) + } + y = 32766 + r = x + y + if r != 32765 { + t.Errorf("-1 + 32766 = %d, want 32765", r) + } + y = 32767 + r = x + y + if r != 32766 { + t.Errorf("-1 + 32767 = %d, want 32766", r) + } + x = 0 + y = -32768 + r = x + y + if r != -32768 { + t.Errorf("0 + -32768 = %d, want -32768", r) + } + y = -32767 + r = x + y + if r != -32767 { + t.Errorf("0 + -32767 = %d, want -32767", r) + } + y = -1 + r = x + y + if r != -1 { + t.Errorf("0 + -1 = %d, want -1", r) + } + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 32766 + r = x + y + if r != 32766 { + t.Errorf("0 + 32766 = %d, want 32766", r) + } + y = 32767 + r = x + y + if r != 32767 { + t.Errorf("0 + 32767 = %d, want 32767", r) + } + x = 1 + y = -32768 + r = x + y + if r != -32767 { + t.Errorf("1 + -32768 = %d, want -32767", r) + } + y = -32767 + r = x + y + if r != -32766 { + t.Errorf("1 + -32767 = %d, want -32766", r) + } + y = -1 + r = x + y + if r != 0 { + t.Errorf("1 + -1 = %d, want 0", r) + } + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 32766 + r = x + y + if r != 32767 { + t.Errorf("1 + 32766 = %d, want 32767", r) + } + y = 32767 + r = x + y + if r != -32768 { + t.Errorf("1 + 32767 = %d, want -32768", r) + } + x = 32766 + y = -32768 + r = x + y + if r != -2 { + t.Errorf("32766 + -32768 = %d, want -2", r) + } + y = -32767 + r = x + y + if r != -1 { + t.Errorf("32766 + -32767 = %d, want -1", r) + } + y = -1 + r = x + y + if r != 32765 { + t.Errorf("32766 + -1 = %d, want 32765", r) + } + y = 0 + r = x + y + if r != 32766 { + t.Errorf("32766 + 0 = %d, want 32766", r) + } + y = 1 + r = x + y + if r != 32767 { + t.Errorf("32766 + 1 = %d, want 32767", r) + } + y = 32766 + r = x + y + if r != -4 { + t.Errorf("32766 + 32766 = %d, want -4", r) + } + y = 32767 + r = x + y + if r != -3 { + t.Errorf("32766 + 32767 = %d, want -3", r) + } + x = 32767 + y = -32768 + r = x + y + if r != -1 { + t.Errorf("32767 + -32768 = %d, want -1", r) + } + y = -32767 + r = x + y + if r != 0 { + t.Errorf("32767 + -32767 = %d, want 0", r) + } + y = -1 + r = x + y + if r != 32766 { + t.Errorf("32767 + -1 = %d, want 32766", r) + } + y = 0 + r = x + y + if r != 32767 { + t.Errorf("32767 + 0 = %d, want 32767", r) + } + y = 1 + r = x + y + if r != -32768 { + t.Errorf("32767 + 1 = %d, want -32768", r) + } + y = 32766 + r = x + y + if r != -3 { + t.Errorf("32767 + 32766 = %d, want -3", r) + } + y = 32767 + r = x + y + if r != -2 { + t.Errorf("32767 + 32767 = %d, want -2", r) + } +} +func TestConstFoldint16sub(t *testing.T) { + var x, y, r int16 + x = -32768 + y = -32768 + r = x - y + if r != 0 { + t.Errorf("-32768 - -32768 = %d, want 0", r) + } + y = -32767 + r = x - y + if r != -1 { + t.Errorf("-32768 - -32767 = %d, want -1", r) + } + y = -1 + r = x - y + if r != -32767 { + t.Errorf("-32768 - -1 = %d, want -32767", r) + } + y = 0 + r = x - y + if r != -32768 { + t.Errorf("-32768 - 0 = %d, want -32768", r) + } + y = 1 + r = x - y + if r != 32767 { + t.Errorf("-32768 - 1 = %d, want 32767", r) + } + y = 32766 + r = x - y + if r != 2 { + t.Errorf("-32768 - 32766 = %d, want 2", r) + } + y = 32767 + r = x - y + if r != 1 { + t.Errorf("-32768 - 32767 = %d, want 1", r) + } + x = -32767 + y = -32768 + r = x - y + if r != 1 { + t.Errorf("-32767 - -32768 = %d, want 1", r) + } + y = -32767 + r = x - y + if r != 0 { + t.Errorf("-32767 - -32767 = %d, want 0", r) + } + y = -1 + r = x - y + if r != -32766 { + t.Errorf("-32767 - -1 = %d, want -32766", r) + } + y = 0 + r = x - y + if r != -32767 { + t.Errorf("-32767 - 0 = %d, want -32767", r) + } + y = 1 + r = x - y + if r != -32768 { + t.Errorf("-32767 - 1 = %d, want -32768", r) + } + y = 32766 + r = x - y + if r != 3 { + t.Errorf("-32767 - 32766 = %d, want 3", r) + } + y = 32767 + r = x - y + if r != 2 { + t.Errorf("-32767 - 32767 = %d, want 2", r) + } + x = -1 + y = -32768 + r = x - y + if r != 32767 { + t.Errorf("-1 - -32768 = %d, want 32767", r) + } + y = -32767 + r = x - y + if r != 32766 { + t.Errorf("-1 - -32767 = %d, want 32766", r) + } + y = -1 + r = x - y + if r != 0 { + t.Errorf("-1 - -1 = %d, want 0", r) + } + y = 0 + r = x - y + if r != -1 { + t.Errorf("-1 - 0 = %d, want -1", r) + } + y = 1 + r = x - y + if r != -2 { + t.Errorf("-1 - 1 = %d, want -2", r) + } + y = 32766 + r = x - y + if r != -32767 { + t.Errorf("-1 - 32766 = %d, want -32767", r) + } + y = 32767 + r = x - y + if r != -32768 { + t.Errorf("-1 - 32767 = %d, want -32768", r) + } + x = 0 + y = -32768 + r = x - y + if r != -32768 { + t.Errorf("0 - -32768 = %d, want -32768", r) + } + y = -32767 + r = x - y + if r != 32767 { + t.Errorf("0 - -32767 = %d, want 32767", r) + } + y = -1 + r = x - y + if r != 1 { + t.Errorf("0 - -1 = %d, want 1", r) + } + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != -1 { + t.Errorf("0 - 1 = %d, want -1", r) + } + y = 32766 + r = x - y + if r != -32766 { + t.Errorf("0 - 32766 = %d, want -32766", r) + } + y = 32767 + r = x - y + if r != -32767 { + t.Errorf("0 - 32767 = %d, want -32767", r) + } + x = 1 + y = -32768 + r = x - y + if r != -32767 { + t.Errorf("1 - -32768 = %d, want -32767", r) + } + y = -32767 + r = x - y + if r != -32768 { + t.Errorf("1 - -32767 = %d, want -32768", r) + } + y = -1 + r = x - y + if r != 2 { + t.Errorf("1 - -1 = %d, want 2", r) + } + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 32766 + r = x - y + if r != -32765 { + t.Errorf("1 - 32766 = %d, want -32765", r) + } + y = 32767 + r = x - y + if r != -32766 { + t.Errorf("1 - 32767 = %d, want -32766", r) + } + x = 32766 + y = -32768 + r = x - y + if r != -2 { + t.Errorf("32766 - -32768 = %d, want -2", r) + } + y = -32767 + r = x - y + if r != -3 { + t.Errorf("32766 - -32767 = %d, want -3", r) + } + y = -1 + r = x - y + if r != 32767 { + t.Errorf("32766 - -1 = %d, want 32767", r) + } + y = 0 + r = x - y + if r != 32766 { + t.Errorf("32766 - 0 = %d, want 32766", r) + } + y = 1 + r = x - y + if r != 32765 { + t.Errorf("32766 - 1 = %d, want 32765", r) + } + y = 32766 + r = x - y + if r != 0 { + t.Errorf("32766 - 32766 = %d, want 0", r) + } + y = 32767 + r = x - y + if r != -1 { + t.Errorf("32766 - 32767 = %d, want -1", r) + } + x = 32767 + y = -32768 + r = x - y + if r != -1 { + t.Errorf("32767 - -32768 = %d, want -1", r) + } + y = -32767 + r = x - y + if r != -2 { + t.Errorf("32767 - -32767 = %d, want -2", r) + } + y = -1 + r = x - y + if r != -32768 { + t.Errorf("32767 - -1 = %d, want -32768", r) + } + y = 0 + r = x - y + if r != 32767 { + t.Errorf("32767 - 0 = %d, want 32767", r) + } + y = 1 + r = x - y + if r != 32766 { + t.Errorf("32767 - 1 = %d, want 32766", r) + } + y = 32766 + r = x - y + if r != 1 { + t.Errorf("32767 - 32766 = %d, want 1", r) + } + y = 32767 + r = x - y + if r != 0 { + t.Errorf("32767 - 32767 = %d, want 0", r) + } +} +func TestConstFoldint16div(t *testing.T) { + var x, y, r int16 + x = -32768 + y = -32768 + r = x / y + if r != 1 { + t.Errorf("-32768 / -32768 = %d, want 1", r) + } + y = -32767 + r = x / y + if r != 1 { + t.Errorf("-32768 / -32767 = %d, want 1", r) + } + y = -1 + r = x / y + if r != -32768 { + t.Errorf("-32768 / -1 = %d, want -32768", r) + } + y = 1 + r = x / y + if r != -32768 { + t.Errorf("-32768 / 1 = %d, want -32768", r) + } + y = 32766 + r = x / y + if r != -1 { + t.Errorf("-32768 / 32766 = %d, want -1", r) + } + y = 32767 + r = x / y + if r != -1 { + t.Errorf("-32768 / 32767 = %d, want -1", r) + } + x = -32767 + y = -32768 + r = x / y + if r != 0 { + t.Errorf("-32767 / -32768 = %d, want 0", r) + } + y = -32767 + r = x / y + if r != 1 { + t.Errorf("-32767 / -32767 = %d, want 1", r) + } + y = -1 + r = x / y + if r != 32767 { + t.Errorf("-32767 / -1 = %d, want 32767", r) + } + y = 1 + r = x / y + if r != -32767 { + t.Errorf("-32767 / 1 = %d, want -32767", r) + } + y = 32766 + r = x / y + if r != -1 { + t.Errorf("-32767 / 32766 = %d, want -1", r) + } + y = 32767 + r = x / y + if r != -1 { + t.Errorf("-32767 / 32767 = %d, want -1", r) + } + x = -1 + y = -32768 + r = x / y + if r != 0 { + t.Errorf("-1 / -32768 = %d, want 0", r) + } + y = -32767 + r = x / y + if r != 0 { + t.Errorf("-1 / -32767 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 1 { + t.Errorf("-1 / -1 = %d, want 1", r) + } + y = 1 + r = x / y + if r != -1 { + t.Errorf("-1 / 1 = %d, want -1", r) + } + y = 32766 + r = x / y + if r != 0 { + t.Errorf("-1 / 32766 = %d, want 0", r) + } + y = 32767 + r = x / y + if r != 0 { + t.Errorf("-1 / 32767 = %d, want 0", r) + } + x = 0 + y = -32768 + r = x / y + if r != 0 { + t.Errorf("0 / -32768 = %d, want 0", r) + } + y = -32767 + r = x / y + if r != 0 { + t.Errorf("0 / -32767 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 0 { + t.Errorf("0 / -1 = %d, want 0", r) + } + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 32766 + r = x / y + if r != 0 { + t.Errorf("0 / 32766 = %d, want 0", r) + } + y = 32767 + r = x / y + if r != 0 { + t.Errorf("0 / 32767 = %d, want 0", r) + } + x = 1 + y = -32768 + r = x / y + if r != 0 { + t.Errorf("1 / -32768 = %d, want 0", r) + } + y = -32767 + r = x / y + if r != 0 { + t.Errorf("1 / -32767 = %d, want 0", r) + } + y = -1 + r = x / y + if r != -1 { + t.Errorf("1 / -1 = %d, want -1", r) + } + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 32766 + r = x / y + if r != 0 { + t.Errorf("1 / 32766 = %d, want 0", r) + } + y = 32767 + r = x / y + if r != 0 { + t.Errorf("1 / 32767 = %d, want 0", r) + } + x = 32766 + y = -32768 + r = x / y + if r != 0 { + t.Errorf("32766 / -32768 = %d, want 0", r) + } + y = -32767 + r = x / y + if r != 0 { + t.Errorf("32766 / -32767 = %d, want 0", r) + } + y = -1 + r = x / y + if r != -32766 { + t.Errorf("32766 / -1 = %d, want -32766", r) + } + y = 1 + r = x / y + if r != 32766 { + t.Errorf("32766 / 1 = %d, want 32766", r) + } + y = 32766 + r = x / y + if r != 1 { + t.Errorf("32766 / 32766 = %d, want 1", r) + } + y = 32767 + r = x / y + if r != 0 { + t.Errorf("32766 / 32767 = %d, want 0", r) + } + x = 32767 + y = -32768 + r = x / y + if r != 0 { + t.Errorf("32767 / -32768 = %d, want 0", r) + } + y = -32767 + r = x / y + if r != -1 { + t.Errorf("32767 / -32767 = %d, want -1", r) + } + y = -1 + r = x / y + if r != -32767 { + t.Errorf("32767 / -1 = %d, want -32767", r) + } + y = 1 + r = x / y + if r != 32767 { + t.Errorf("32767 / 1 = %d, want 32767", r) + } + y = 32766 + r = x / y + if r != 1 { + t.Errorf("32767 / 32766 = %d, want 1", r) + } + y = 32767 + r = x / y + if r != 1 { + t.Errorf("32767 / 32767 = %d, want 1", r) + } +} +func TestConstFoldint16mul(t *testing.T) { + var x, y, r int16 + x = -32768 + y = -32768 + r = x * y + if r != 0 { + t.Errorf("-32768 * -32768 = %d, want 0", r) + } + y = -32767 + r = x * y + if r != -32768 { + t.Errorf("-32768 * -32767 = %d, want -32768", r) + } + y = -1 + r = x * y + if r != -32768 { + t.Errorf("-32768 * -1 = %d, want -32768", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-32768 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -32768 { + t.Errorf("-32768 * 1 = %d, want -32768", r) + } + y = 32766 + r = x * y + if r != 0 { + t.Errorf("-32768 * 32766 = %d, want 0", r) + } + y = 32767 + r = x * y + if r != -32768 { + t.Errorf("-32768 * 32767 = %d, want -32768", r) + } + x = -32767 + y = -32768 + r = x * y + if r != -32768 { + t.Errorf("-32767 * -32768 = %d, want -32768", r) + } + y = -32767 + r = x * y + if r != 1 { + t.Errorf("-32767 * -32767 = %d, want 1", r) + } + y = -1 + r = x * y + if r != 32767 { + t.Errorf("-32767 * -1 = %d, want 32767", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-32767 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -32767 { + t.Errorf("-32767 * 1 = %d, want -32767", r) + } + y = 32766 + r = x * y + if r != 32766 { + t.Errorf("-32767 * 32766 = %d, want 32766", r) + } + y = 32767 + r = x * y + if r != -1 { + t.Errorf("-32767 * 32767 = %d, want -1", r) + } + x = -1 + y = -32768 + r = x * y + if r != -32768 { + t.Errorf("-1 * -32768 = %d, want -32768", r) + } + y = -32767 + r = x * y + if r != 32767 { + t.Errorf("-1 * -32767 = %d, want 32767", r) + } + y = -1 + r = x * y + if r != 1 { + t.Errorf("-1 * -1 = %d, want 1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -1 { + t.Errorf("-1 * 1 = %d, want -1", r) + } + y = 32766 + r = x * y + if r != -32766 { + t.Errorf("-1 * 32766 = %d, want -32766", r) + } + y = 32767 + r = x * y + if r != -32767 { + t.Errorf("-1 * 32767 = %d, want -32767", r) + } + x = 0 + y = -32768 + r = x * y + if r != 0 { + t.Errorf("0 * -32768 = %d, want 0", r) + } + y = -32767 + r = x * y + if r != 0 { + t.Errorf("0 * -32767 = %d, want 0", r) + } + y = -1 + r = x * y + if r != 0 { + t.Errorf("0 * -1 = %d, want 0", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 32766 + r = x * y + if r != 0 { + t.Errorf("0 * 32766 = %d, want 0", r) + } + y = 32767 + r = x * y + if r != 0 { + t.Errorf("0 * 32767 = %d, want 0", r) + } + x = 1 + y = -32768 + r = x * y + if r != -32768 { + t.Errorf("1 * -32768 = %d, want -32768", r) + } + y = -32767 + r = x * y + if r != -32767 { + t.Errorf("1 * -32767 = %d, want -32767", r) + } + y = -1 + r = x * y + if r != -1 { + t.Errorf("1 * -1 = %d, want -1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 32766 + r = x * y + if r != 32766 { + t.Errorf("1 * 32766 = %d, want 32766", r) + } + y = 32767 + r = x * y + if r != 32767 { + t.Errorf("1 * 32767 = %d, want 32767", r) + } + x = 32766 + y = -32768 + r = x * y + if r != 0 { + t.Errorf("32766 * -32768 = %d, want 0", r) + } + y = -32767 + r = x * y + if r != 32766 { + t.Errorf("32766 * -32767 = %d, want 32766", r) + } + y = -1 + r = x * y + if r != -32766 { + t.Errorf("32766 * -1 = %d, want -32766", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("32766 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 32766 { + t.Errorf("32766 * 1 = %d, want 32766", r) + } + y = 32766 + r = x * y + if r != 4 { + t.Errorf("32766 * 32766 = %d, want 4", r) + } + y = 32767 + r = x * y + if r != -32766 { + t.Errorf("32766 * 32767 = %d, want -32766", r) + } + x = 32767 + y = -32768 + r = x * y + if r != -32768 { + t.Errorf("32767 * -32768 = %d, want -32768", r) + } + y = -32767 + r = x * y + if r != -1 { + t.Errorf("32767 * -32767 = %d, want -1", r) + } + y = -1 + r = x * y + if r != -32767 { + t.Errorf("32767 * -1 = %d, want -32767", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("32767 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 32767 { + t.Errorf("32767 * 1 = %d, want 32767", r) + } + y = 32766 + r = x * y + if r != -32766 { + t.Errorf("32767 * 32766 = %d, want -32766", r) + } + y = 32767 + r = x * y + if r != 1 { + t.Errorf("32767 * 32767 = %d, want 1", r) + } +} +func TestConstFoldint16mod(t *testing.T) { + var x, y, r int16 + x = -32768 + y = -32768 + r = x % y + if r != 0 { + t.Errorf("-32768 % -32768 = %d, want 0", r) + } + y = -32767 + r = x % y + if r != -1 { + t.Errorf("-32768 % -32767 = %d, want -1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-32768 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-32768 % 1 = %d, want 0", r) + } + y = 32766 + r = x % y + if r != -2 { + t.Errorf("-32768 % 32766 = %d, want -2", r) + } + y = 32767 + r = x % y + if r != -1 { + t.Errorf("-32768 % 32767 = %d, want -1", r) + } + x = -32767 + y = -32768 + r = x % y + if r != -32767 { + t.Errorf("-32767 % -32768 = %d, want -32767", r) + } + y = -32767 + r = x % y + if r != 0 { + t.Errorf("-32767 % -32767 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-32767 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-32767 % 1 = %d, want 0", r) + } + y = 32766 + r = x % y + if r != -1 { + t.Errorf("-32767 % 32766 = %d, want -1", r) + } + y = 32767 + r = x % y + if r != 0 { + t.Errorf("-32767 % 32767 = %d, want 0", r) + } + x = -1 + y = -32768 + r = x % y + if r != -1 { + t.Errorf("-1 % -32768 = %d, want -1", r) + } + y = -32767 + r = x % y + if r != -1 { + t.Errorf("-1 % -32767 = %d, want -1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-1 % 1 = %d, want 0", r) + } + y = 32766 + r = x % y + if r != -1 { + t.Errorf("-1 % 32766 = %d, want -1", r) + } + y = 32767 + r = x % y + if r != -1 { + t.Errorf("-1 % 32767 = %d, want -1", r) + } + x = 0 + y = -32768 + r = x % y + if r != 0 { + t.Errorf("0 % -32768 = %d, want 0", r) + } + y = -32767 + r = x % y + if r != 0 { + t.Errorf("0 % -32767 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("0 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 32766 + r = x % y + if r != 0 { + t.Errorf("0 % 32766 = %d, want 0", r) + } + y = 32767 + r = x % y + if r != 0 { + t.Errorf("0 % 32767 = %d, want 0", r) + } + x = 1 + y = -32768 + r = x % y + if r != 1 { + t.Errorf("1 % -32768 = %d, want 1", r) + } + y = -32767 + r = x % y + if r != 1 { + t.Errorf("1 % -32767 = %d, want 1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 32766 + r = x % y + if r != 1 { + t.Errorf("1 % 32766 = %d, want 1", r) + } + y = 32767 + r = x % y + if r != 1 { + t.Errorf("1 % 32767 = %d, want 1", r) + } + x = 32766 + y = -32768 + r = x % y + if r != 32766 { + t.Errorf("32766 % -32768 = %d, want 32766", r) + } + y = -32767 + r = x % y + if r != 32766 { + t.Errorf("32766 % -32767 = %d, want 32766", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("32766 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("32766 % 1 = %d, want 0", r) + } + y = 32766 + r = x % y + if r != 0 { + t.Errorf("32766 % 32766 = %d, want 0", r) + } + y = 32767 + r = x % y + if r != 32766 { + t.Errorf("32766 % 32767 = %d, want 32766", r) + } + x = 32767 + y = -32768 + r = x % y + if r != 32767 { + t.Errorf("32767 % -32768 = %d, want 32767", r) + } + y = -32767 + r = x % y + if r != 0 { + t.Errorf("32767 % -32767 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("32767 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("32767 % 1 = %d, want 0", r) + } + y = 32766 + r = x % y + if r != 1 { + t.Errorf("32767 % 32766 = %d, want 1", r) + } + y = 32767 + r = x % y + if r != 0 { + t.Errorf("32767 % 32767 = %d, want 0", r) + } +} +func TestConstFolduint8add(t *testing.T) { + var x, y, r uint8 + x = 0 + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 255 + r = x + y + if r != 255 { + t.Errorf("0 + 255 = %d, want 255", r) + } + x = 1 + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 255 + r = x + y + if r != 0 { + t.Errorf("1 + 255 = %d, want 0", r) + } + x = 255 + y = 0 + r = x + y + if r != 255 { + t.Errorf("255 + 0 = %d, want 255", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("255 + 1 = %d, want 0", r) + } + y = 255 + r = x + y + if r != 254 { + t.Errorf("255 + 255 = %d, want 254", r) + } +} +func TestConstFolduint8sub(t *testing.T) { + var x, y, r uint8 + x = 0 + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != 255 { + t.Errorf("0 - 1 = %d, want 255", r) + } + y = 255 + r = x - y + if r != 1 { + t.Errorf("0 - 255 = %d, want 1", r) + } + x = 1 + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 255 + r = x - y + if r != 2 { + t.Errorf("1 - 255 = %d, want 2", r) + } + x = 255 + y = 0 + r = x - y + if r != 255 { + t.Errorf("255 - 0 = %d, want 255", r) + } + y = 1 + r = x - y + if r != 254 { + t.Errorf("255 - 1 = %d, want 254", r) + } + y = 255 + r = x - y + if r != 0 { + t.Errorf("255 - 255 = %d, want 0", r) + } +} +func TestConstFolduint8div(t *testing.T) { + var x, y, r uint8 + x = 0 + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 255 + r = x / y + if r != 0 { + t.Errorf("0 / 255 = %d, want 0", r) + } + x = 1 + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 255 + r = x / y + if r != 0 { + t.Errorf("1 / 255 = %d, want 0", r) + } + x = 255 + y = 1 + r = x / y + if r != 255 { + t.Errorf("255 / 1 = %d, want 255", r) + } + y = 255 + r = x / y + if r != 1 { + t.Errorf("255 / 255 = %d, want 1", r) + } +} +func TestConstFolduint8mul(t *testing.T) { + var x, y, r uint8 + x = 0 + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 255 + r = x * y + if r != 0 { + t.Errorf("0 * 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 255 + r = x * y + if r != 255 { + t.Errorf("1 * 255 = %d, want 255", r) + } + x = 255 + y = 0 + r = x * y + if r != 0 { + t.Errorf("255 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 255 { + t.Errorf("255 * 1 = %d, want 255", r) + } + y = 255 + r = x * y + if r != 1 { + t.Errorf("255 * 255 = %d, want 1", r) + } +} +func TestConstFolduint8mod(t *testing.T) { + var x, y, r uint8 + x = 0 + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 255 + r = x % y + if r != 0 { + t.Errorf("0 % 255 = %d, want 0", r) + } + x = 1 + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 255 + r = x % y + if r != 1 { + t.Errorf("1 % 255 = %d, want 1", r) + } + x = 255 + y = 1 + r = x % y + if r != 0 { + t.Errorf("255 % 1 = %d, want 0", r) + } + y = 255 + r = x % y + if r != 0 { + t.Errorf("255 % 255 = %d, want 0", r) + } +} +func TestConstFoldint8add(t *testing.T) { + var x, y, r int8 + x = -128 + y = -128 + r = x + y + if r != 0 { + t.Errorf("-128 + -128 = %d, want 0", r) + } + y = -127 + r = x + y + if r != 1 { + t.Errorf("-128 + -127 = %d, want 1", r) + } + y = -1 + r = x + y + if r != 127 { + t.Errorf("-128 + -1 = %d, want 127", r) + } + y = 0 + r = x + y + if r != -128 { + t.Errorf("-128 + 0 = %d, want -128", r) + } + y = 1 + r = x + y + if r != -127 { + t.Errorf("-128 + 1 = %d, want -127", r) + } + y = 126 + r = x + y + if r != -2 { + t.Errorf("-128 + 126 = %d, want -2", r) + } + y = 127 + r = x + y + if r != -1 { + t.Errorf("-128 + 127 = %d, want -1", r) + } + x = -127 + y = -128 + r = x + y + if r != 1 { + t.Errorf("-127 + -128 = %d, want 1", r) + } + y = -127 + r = x + y + if r != 2 { + t.Errorf("-127 + -127 = %d, want 2", r) + } + y = -1 + r = x + y + if r != -128 { + t.Errorf("-127 + -1 = %d, want -128", r) + } + y = 0 + r = x + y + if r != -127 { + t.Errorf("-127 + 0 = %d, want -127", r) + } + y = 1 + r = x + y + if r != -126 { + t.Errorf("-127 + 1 = %d, want -126", r) + } + y = 126 + r = x + y + if r != -1 { + t.Errorf("-127 + 126 = %d, want -1", r) + } + y = 127 + r = x + y + if r != 0 { + t.Errorf("-127 + 127 = %d, want 0", r) + } + x = -1 + y = -128 + r = x + y + if r != 127 { + t.Errorf("-1 + -128 = %d, want 127", r) + } + y = -127 + r = x + y + if r != -128 { + t.Errorf("-1 + -127 = %d, want -128", r) + } + y = -1 + r = x + y + if r != -2 { + t.Errorf("-1 + -1 = %d, want -2", r) + } + y = 0 + r = x + y + if r != -1 { + t.Errorf("-1 + 0 = %d, want -1", r) + } + y = 1 + r = x + y + if r != 0 { + t.Errorf("-1 + 1 = %d, want 0", r) + } + y = 126 + r = x + y + if r != 125 { + t.Errorf("-1 + 126 = %d, want 125", r) + } + y = 127 + r = x + y + if r != 126 { + t.Errorf("-1 + 127 = %d, want 126", r) + } + x = 0 + y = -128 + r = x + y + if r != -128 { + t.Errorf("0 + -128 = %d, want -128", r) + } + y = -127 + r = x + y + if r != -127 { + t.Errorf("0 + -127 = %d, want -127", r) + } + y = -1 + r = x + y + if r != -1 { + t.Errorf("0 + -1 = %d, want -1", r) + } + y = 0 + r = x + y + if r != 0 { + t.Errorf("0 + 0 = %d, want 0", r) + } + y = 1 + r = x + y + if r != 1 { + t.Errorf("0 + 1 = %d, want 1", r) + } + y = 126 + r = x + y + if r != 126 { + t.Errorf("0 + 126 = %d, want 126", r) + } + y = 127 + r = x + y + if r != 127 { + t.Errorf("0 + 127 = %d, want 127", r) + } + x = 1 + y = -128 + r = x + y + if r != -127 { + t.Errorf("1 + -128 = %d, want -127", r) + } + y = -127 + r = x + y + if r != -126 { + t.Errorf("1 + -127 = %d, want -126", r) + } + y = -1 + r = x + y + if r != 0 { + t.Errorf("1 + -1 = %d, want 0", r) + } + y = 0 + r = x + y + if r != 1 { + t.Errorf("1 + 0 = %d, want 1", r) + } + y = 1 + r = x + y + if r != 2 { + t.Errorf("1 + 1 = %d, want 2", r) + } + y = 126 + r = x + y + if r != 127 { + t.Errorf("1 + 126 = %d, want 127", r) + } + y = 127 + r = x + y + if r != -128 { + t.Errorf("1 + 127 = %d, want -128", r) + } + x = 126 + y = -128 + r = x + y + if r != -2 { + t.Errorf("126 + -128 = %d, want -2", r) + } + y = -127 + r = x + y + if r != -1 { + t.Errorf("126 + -127 = %d, want -1", r) + } + y = -1 + r = x + y + if r != 125 { + t.Errorf("126 + -1 = %d, want 125", r) + } + y = 0 + r = x + y + if r != 126 { + t.Errorf("126 + 0 = %d, want 126", r) + } + y = 1 + r = x + y + if r != 127 { + t.Errorf("126 + 1 = %d, want 127", r) + } + y = 126 + r = x + y + if r != -4 { + t.Errorf("126 + 126 = %d, want -4", r) + } + y = 127 + r = x + y + if r != -3 { + t.Errorf("126 + 127 = %d, want -3", r) + } + x = 127 + y = -128 + r = x + y + if r != -1 { + t.Errorf("127 + -128 = %d, want -1", r) + } + y = -127 + r = x + y + if r != 0 { + t.Errorf("127 + -127 = %d, want 0", r) + } + y = -1 + r = x + y + if r != 126 { + t.Errorf("127 + -1 = %d, want 126", r) + } + y = 0 + r = x + y + if r != 127 { + t.Errorf("127 + 0 = %d, want 127", r) + } + y = 1 + r = x + y + if r != -128 { + t.Errorf("127 + 1 = %d, want -128", r) + } + y = 126 + r = x + y + if r != -3 { + t.Errorf("127 + 126 = %d, want -3", r) + } + y = 127 + r = x + y + if r != -2 { + t.Errorf("127 + 127 = %d, want -2", r) + } +} +func TestConstFoldint8sub(t *testing.T) { + var x, y, r int8 + x = -128 + y = -128 + r = x - y + if r != 0 { + t.Errorf("-128 - -128 = %d, want 0", r) + } + y = -127 + r = x - y + if r != -1 { + t.Errorf("-128 - -127 = %d, want -1", r) + } + y = -1 + r = x - y + if r != -127 { + t.Errorf("-128 - -1 = %d, want -127", r) + } + y = 0 + r = x - y + if r != -128 { + t.Errorf("-128 - 0 = %d, want -128", r) + } + y = 1 + r = x - y + if r != 127 { + t.Errorf("-128 - 1 = %d, want 127", r) + } + y = 126 + r = x - y + if r != 2 { + t.Errorf("-128 - 126 = %d, want 2", r) + } + y = 127 + r = x - y + if r != 1 { + t.Errorf("-128 - 127 = %d, want 1", r) + } + x = -127 + y = -128 + r = x - y + if r != 1 { + t.Errorf("-127 - -128 = %d, want 1", r) + } + y = -127 + r = x - y + if r != 0 { + t.Errorf("-127 - -127 = %d, want 0", r) + } + y = -1 + r = x - y + if r != -126 { + t.Errorf("-127 - -1 = %d, want -126", r) + } + y = 0 + r = x - y + if r != -127 { + t.Errorf("-127 - 0 = %d, want -127", r) + } + y = 1 + r = x - y + if r != -128 { + t.Errorf("-127 - 1 = %d, want -128", r) + } + y = 126 + r = x - y + if r != 3 { + t.Errorf("-127 - 126 = %d, want 3", r) + } + y = 127 + r = x - y + if r != 2 { + t.Errorf("-127 - 127 = %d, want 2", r) + } + x = -1 + y = -128 + r = x - y + if r != 127 { + t.Errorf("-1 - -128 = %d, want 127", r) + } + y = -127 + r = x - y + if r != 126 { + t.Errorf("-1 - -127 = %d, want 126", r) + } + y = -1 + r = x - y + if r != 0 { + t.Errorf("-1 - -1 = %d, want 0", r) + } + y = 0 + r = x - y + if r != -1 { + t.Errorf("-1 - 0 = %d, want -1", r) + } + y = 1 + r = x - y + if r != -2 { + t.Errorf("-1 - 1 = %d, want -2", r) + } + y = 126 + r = x - y + if r != -127 { + t.Errorf("-1 - 126 = %d, want -127", r) + } + y = 127 + r = x - y + if r != -128 { + t.Errorf("-1 - 127 = %d, want -128", r) + } + x = 0 + y = -128 + r = x - y + if r != -128 { + t.Errorf("0 - -128 = %d, want -128", r) + } + y = -127 + r = x - y + if r != 127 { + t.Errorf("0 - -127 = %d, want 127", r) + } + y = -1 + r = x - y + if r != 1 { + t.Errorf("0 - -1 = %d, want 1", r) + } + y = 0 + r = x - y + if r != 0 { + t.Errorf("0 - 0 = %d, want 0", r) + } + y = 1 + r = x - y + if r != -1 { + t.Errorf("0 - 1 = %d, want -1", r) + } + y = 126 + r = x - y + if r != -126 { + t.Errorf("0 - 126 = %d, want -126", r) + } + y = 127 + r = x - y + if r != -127 { + t.Errorf("0 - 127 = %d, want -127", r) + } + x = 1 + y = -128 + r = x - y + if r != -127 { + t.Errorf("1 - -128 = %d, want -127", r) + } + y = -127 + r = x - y + if r != -128 { + t.Errorf("1 - -127 = %d, want -128", r) + } + y = -1 + r = x - y + if r != 2 { + t.Errorf("1 - -1 = %d, want 2", r) + } + y = 0 + r = x - y + if r != 1 { + t.Errorf("1 - 0 = %d, want 1", r) + } + y = 1 + r = x - y + if r != 0 { + t.Errorf("1 - 1 = %d, want 0", r) + } + y = 126 + r = x - y + if r != -125 { + t.Errorf("1 - 126 = %d, want -125", r) + } + y = 127 + r = x - y + if r != -126 { + t.Errorf("1 - 127 = %d, want -126", r) + } + x = 126 + y = -128 + r = x - y + if r != -2 { + t.Errorf("126 - -128 = %d, want -2", r) + } + y = -127 + r = x - y + if r != -3 { + t.Errorf("126 - -127 = %d, want -3", r) + } + y = -1 + r = x - y + if r != 127 { + t.Errorf("126 - -1 = %d, want 127", r) + } + y = 0 + r = x - y + if r != 126 { + t.Errorf("126 - 0 = %d, want 126", r) + } + y = 1 + r = x - y + if r != 125 { + t.Errorf("126 - 1 = %d, want 125", r) + } + y = 126 + r = x - y + if r != 0 { + t.Errorf("126 - 126 = %d, want 0", r) + } + y = 127 + r = x - y + if r != -1 { + t.Errorf("126 - 127 = %d, want -1", r) + } + x = 127 + y = -128 + r = x - y + if r != -1 { + t.Errorf("127 - -128 = %d, want -1", r) + } + y = -127 + r = x - y + if r != -2 { + t.Errorf("127 - -127 = %d, want -2", r) + } + y = -1 + r = x - y + if r != -128 { + t.Errorf("127 - -1 = %d, want -128", r) + } + y = 0 + r = x - y + if r != 127 { + t.Errorf("127 - 0 = %d, want 127", r) + } + y = 1 + r = x - y + if r != 126 { + t.Errorf("127 - 1 = %d, want 126", r) + } + y = 126 + r = x - y + if r != 1 { + t.Errorf("127 - 126 = %d, want 1", r) + } + y = 127 + r = x - y + if r != 0 { + t.Errorf("127 - 127 = %d, want 0", r) + } +} +func TestConstFoldint8div(t *testing.T) { + var x, y, r int8 + x = -128 + y = -128 + r = x / y + if r != 1 { + t.Errorf("-128 / -128 = %d, want 1", r) + } + y = -127 + r = x / y + if r != 1 { + t.Errorf("-128 / -127 = %d, want 1", r) + } + y = -1 + r = x / y + if r != -128 { + t.Errorf("-128 / -1 = %d, want -128", r) + } + y = 1 + r = x / y + if r != -128 { + t.Errorf("-128 / 1 = %d, want -128", r) + } + y = 126 + r = x / y + if r != -1 { + t.Errorf("-128 / 126 = %d, want -1", r) + } + y = 127 + r = x / y + if r != -1 { + t.Errorf("-128 / 127 = %d, want -1", r) + } + x = -127 + y = -128 + r = x / y + if r != 0 { + t.Errorf("-127 / -128 = %d, want 0", r) + } + y = -127 + r = x / y + if r != 1 { + t.Errorf("-127 / -127 = %d, want 1", r) + } + y = -1 + r = x / y + if r != 127 { + t.Errorf("-127 / -1 = %d, want 127", r) + } + y = 1 + r = x / y + if r != -127 { + t.Errorf("-127 / 1 = %d, want -127", r) + } + y = 126 + r = x / y + if r != -1 { + t.Errorf("-127 / 126 = %d, want -1", r) + } + y = 127 + r = x / y + if r != -1 { + t.Errorf("-127 / 127 = %d, want -1", r) + } + x = -1 + y = -128 + r = x / y + if r != 0 { + t.Errorf("-1 / -128 = %d, want 0", r) + } + y = -127 + r = x / y + if r != 0 { + t.Errorf("-1 / -127 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 1 { + t.Errorf("-1 / -1 = %d, want 1", r) + } + y = 1 + r = x / y + if r != -1 { + t.Errorf("-1 / 1 = %d, want -1", r) + } + y = 126 + r = x / y + if r != 0 { + t.Errorf("-1 / 126 = %d, want 0", r) + } + y = 127 + r = x / y + if r != 0 { + t.Errorf("-1 / 127 = %d, want 0", r) + } + x = 0 + y = -128 + r = x / y + if r != 0 { + t.Errorf("0 / -128 = %d, want 0", r) + } + y = -127 + r = x / y + if r != 0 { + t.Errorf("0 / -127 = %d, want 0", r) + } + y = -1 + r = x / y + if r != 0 { + t.Errorf("0 / -1 = %d, want 0", r) + } + y = 1 + r = x / y + if r != 0 { + t.Errorf("0 / 1 = %d, want 0", r) + } + y = 126 + r = x / y + if r != 0 { + t.Errorf("0 / 126 = %d, want 0", r) + } + y = 127 + r = x / y + if r != 0 { + t.Errorf("0 / 127 = %d, want 0", r) + } + x = 1 + y = -128 + r = x / y + if r != 0 { + t.Errorf("1 / -128 = %d, want 0", r) + } + y = -127 + r = x / y + if r != 0 { + t.Errorf("1 / -127 = %d, want 0", r) + } + y = -1 + r = x / y + if r != -1 { + t.Errorf("1 / -1 = %d, want -1", r) + } + y = 1 + r = x / y + if r != 1 { + t.Errorf("1 / 1 = %d, want 1", r) + } + y = 126 + r = x / y + if r != 0 { + t.Errorf("1 / 126 = %d, want 0", r) + } + y = 127 + r = x / y + if r != 0 { + t.Errorf("1 / 127 = %d, want 0", r) + } + x = 126 + y = -128 + r = x / y + if r != 0 { + t.Errorf("126 / -128 = %d, want 0", r) + } + y = -127 + r = x / y + if r != 0 { + t.Errorf("126 / -127 = %d, want 0", r) + } + y = -1 + r = x / y + if r != -126 { + t.Errorf("126 / -1 = %d, want -126", r) + } + y = 1 + r = x / y + if r != 126 { + t.Errorf("126 / 1 = %d, want 126", r) + } + y = 126 + r = x / y + if r != 1 { + t.Errorf("126 / 126 = %d, want 1", r) + } + y = 127 + r = x / y + if r != 0 { + t.Errorf("126 / 127 = %d, want 0", r) + } + x = 127 + y = -128 + r = x / y + if r != 0 { + t.Errorf("127 / -128 = %d, want 0", r) + } + y = -127 + r = x / y + if r != -1 { + t.Errorf("127 / -127 = %d, want -1", r) + } + y = -1 + r = x / y + if r != -127 { + t.Errorf("127 / -1 = %d, want -127", r) + } + y = 1 + r = x / y + if r != 127 { + t.Errorf("127 / 1 = %d, want 127", r) + } + y = 126 + r = x / y + if r != 1 { + t.Errorf("127 / 126 = %d, want 1", r) + } + y = 127 + r = x / y + if r != 1 { + t.Errorf("127 / 127 = %d, want 1", r) + } +} +func TestConstFoldint8mul(t *testing.T) { + var x, y, r int8 + x = -128 + y = -128 + r = x * y + if r != 0 { + t.Errorf("-128 * -128 = %d, want 0", r) + } + y = -127 + r = x * y + if r != -128 { + t.Errorf("-128 * -127 = %d, want -128", r) + } + y = -1 + r = x * y + if r != -128 { + t.Errorf("-128 * -1 = %d, want -128", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-128 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -128 { + t.Errorf("-128 * 1 = %d, want -128", r) + } + y = 126 + r = x * y + if r != 0 { + t.Errorf("-128 * 126 = %d, want 0", r) + } + y = 127 + r = x * y + if r != -128 { + t.Errorf("-128 * 127 = %d, want -128", r) + } + x = -127 + y = -128 + r = x * y + if r != -128 { + t.Errorf("-127 * -128 = %d, want -128", r) + } + y = -127 + r = x * y + if r != 1 { + t.Errorf("-127 * -127 = %d, want 1", r) + } + y = -1 + r = x * y + if r != 127 { + t.Errorf("-127 * -1 = %d, want 127", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-127 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -127 { + t.Errorf("-127 * 1 = %d, want -127", r) + } + y = 126 + r = x * y + if r != 126 { + t.Errorf("-127 * 126 = %d, want 126", r) + } + y = 127 + r = x * y + if r != -1 { + t.Errorf("-127 * 127 = %d, want -1", r) + } + x = -1 + y = -128 + r = x * y + if r != -128 { + t.Errorf("-1 * -128 = %d, want -128", r) + } + y = -127 + r = x * y + if r != 127 { + t.Errorf("-1 * -127 = %d, want 127", r) + } + y = -1 + r = x * y + if r != 1 { + t.Errorf("-1 * -1 = %d, want 1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("-1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != -1 { + t.Errorf("-1 * 1 = %d, want -1", r) + } + y = 126 + r = x * y + if r != -126 { + t.Errorf("-1 * 126 = %d, want -126", r) + } + y = 127 + r = x * y + if r != -127 { + t.Errorf("-1 * 127 = %d, want -127", r) + } + x = 0 + y = -128 + r = x * y + if r != 0 { + t.Errorf("0 * -128 = %d, want 0", r) + } + y = -127 + r = x * y + if r != 0 { + t.Errorf("0 * -127 = %d, want 0", r) + } + y = -1 + r = x * y + if r != 0 { + t.Errorf("0 * -1 = %d, want 0", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("0 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 0 { + t.Errorf("0 * 1 = %d, want 0", r) + } + y = 126 + r = x * y + if r != 0 { + t.Errorf("0 * 126 = %d, want 0", r) + } + y = 127 + r = x * y + if r != 0 { + t.Errorf("0 * 127 = %d, want 0", r) + } + x = 1 + y = -128 + r = x * y + if r != -128 { + t.Errorf("1 * -128 = %d, want -128", r) + } + y = -127 + r = x * y + if r != -127 { + t.Errorf("1 * -127 = %d, want -127", r) + } + y = -1 + r = x * y + if r != -1 { + t.Errorf("1 * -1 = %d, want -1", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("1 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 1 { + t.Errorf("1 * 1 = %d, want 1", r) + } + y = 126 + r = x * y + if r != 126 { + t.Errorf("1 * 126 = %d, want 126", r) + } + y = 127 + r = x * y + if r != 127 { + t.Errorf("1 * 127 = %d, want 127", r) + } + x = 126 + y = -128 + r = x * y + if r != 0 { + t.Errorf("126 * -128 = %d, want 0", r) + } + y = -127 + r = x * y + if r != 126 { + t.Errorf("126 * -127 = %d, want 126", r) + } + y = -1 + r = x * y + if r != -126 { + t.Errorf("126 * -1 = %d, want -126", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("126 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 126 { + t.Errorf("126 * 1 = %d, want 126", r) + } + y = 126 + r = x * y + if r != 4 { + t.Errorf("126 * 126 = %d, want 4", r) + } + y = 127 + r = x * y + if r != -126 { + t.Errorf("126 * 127 = %d, want -126", r) + } + x = 127 + y = -128 + r = x * y + if r != -128 { + t.Errorf("127 * -128 = %d, want -128", r) + } + y = -127 + r = x * y + if r != -1 { + t.Errorf("127 * -127 = %d, want -1", r) + } + y = -1 + r = x * y + if r != -127 { + t.Errorf("127 * -1 = %d, want -127", r) + } + y = 0 + r = x * y + if r != 0 { + t.Errorf("127 * 0 = %d, want 0", r) + } + y = 1 + r = x * y + if r != 127 { + t.Errorf("127 * 1 = %d, want 127", r) + } + y = 126 + r = x * y + if r != -126 { + t.Errorf("127 * 126 = %d, want -126", r) + } + y = 127 + r = x * y + if r != 1 { + t.Errorf("127 * 127 = %d, want 1", r) + } +} +func TestConstFoldint8mod(t *testing.T) { + var x, y, r int8 + x = -128 + y = -128 + r = x % y + if r != 0 { + t.Errorf("-128 % -128 = %d, want 0", r) + } + y = -127 + r = x % y + if r != -1 { + t.Errorf("-128 % -127 = %d, want -1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-128 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-128 % 1 = %d, want 0", r) + } + y = 126 + r = x % y + if r != -2 { + t.Errorf("-128 % 126 = %d, want -2", r) + } + y = 127 + r = x % y + if r != -1 { + t.Errorf("-128 % 127 = %d, want -1", r) + } + x = -127 + y = -128 + r = x % y + if r != -127 { + t.Errorf("-127 % -128 = %d, want -127", r) + } + y = -127 + r = x % y + if r != 0 { + t.Errorf("-127 % -127 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-127 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-127 % 1 = %d, want 0", r) + } + y = 126 + r = x % y + if r != -1 { + t.Errorf("-127 % 126 = %d, want -1", r) + } + y = 127 + r = x % y + if r != 0 { + t.Errorf("-127 % 127 = %d, want 0", r) + } + x = -1 + y = -128 + r = x % y + if r != -1 { + t.Errorf("-1 % -128 = %d, want -1", r) + } + y = -127 + r = x % y + if r != -1 { + t.Errorf("-1 % -127 = %d, want -1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("-1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("-1 % 1 = %d, want 0", r) + } + y = 126 + r = x % y + if r != -1 { + t.Errorf("-1 % 126 = %d, want -1", r) + } + y = 127 + r = x % y + if r != -1 { + t.Errorf("-1 % 127 = %d, want -1", r) + } + x = 0 + y = -128 + r = x % y + if r != 0 { + t.Errorf("0 % -128 = %d, want 0", r) + } + y = -127 + r = x % y + if r != 0 { + t.Errorf("0 % -127 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("0 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("0 % 1 = %d, want 0", r) + } + y = 126 + r = x % y + if r != 0 { + t.Errorf("0 % 126 = %d, want 0", r) + } + y = 127 + r = x % y + if r != 0 { + t.Errorf("0 % 127 = %d, want 0", r) + } + x = 1 + y = -128 + r = x % y + if r != 1 { + t.Errorf("1 % -128 = %d, want 1", r) + } + y = -127 + r = x % y + if r != 1 { + t.Errorf("1 % -127 = %d, want 1", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("1 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("1 % 1 = %d, want 0", r) + } + y = 126 + r = x % y + if r != 1 { + t.Errorf("1 % 126 = %d, want 1", r) + } + y = 127 + r = x % y + if r != 1 { + t.Errorf("1 % 127 = %d, want 1", r) + } + x = 126 + y = -128 + r = x % y + if r != 126 { + t.Errorf("126 % -128 = %d, want 126", r) + } + y = -127 + r = x % y + if r != 126 { + t.Errorf("126 % -127 = %d, want 126", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("126 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("126 % 1 = %d, want 0", r) + } + y = 126 + r = x % y + if r != 0 { + t.Errorf("126 % 126 = %d, want 0", r) + } + y = 127 + r = x % y + if r != 126 { + t.Errorf("126 % 127 = %d, want 126", r) + } + x = 127 + y = -128 + r = x % y + if r != 127 { + t.Errorf("127 % -128 = %d, want 127", r) + } + y = -127 + r = x % y + if r != 0 { + t.Errorf("127 % -127 = %d, want 0", r) + } + y = -1 + r = x % y + if r != 0 { + t.Errorf("127 % -1 = %d, want 0", r) + } + y = 1 + r = x % y + if r != 0 { + t.Errorf("127 % 1 = %d, want 0", r) + } + y = 126 + r = x % y + if r != 1 { + t.Errorf("127 % 126 = %d, want 1", r) + } + y = 127 + r = x % y + if r != 0 { + t.Errorf("127 % 127 = %d, want 0", r) + } +} +func TestConstFolduint64uint64lsh(t *testing.T) { + var x, r uint64 + var y uint64 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 18446744073709551615 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x << y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 << 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x << y + if r != 18446744073709551614 { + t.Errorf("18446744073709551615 << 1 = %d, want 18446744073709551614", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("18446744073709551615 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("18446744073709551615 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint64uint64rsh(t *testing.T) { + var x, r uint64 + var y uint64 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 18446744073709551615 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x >> y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 >> 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("18446744073709551615 >> 1 = %d, want 9223372036854775807", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("18446744073709551615 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("18446744073709551615 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint64uint32lsh(t *testing.T) { + var x, r uint64 + var y uint32 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 4294967295 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x << y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 << 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x << y + if r != 18446744073709551614 { + t.Errorf("18446744073709551615 << 1 = %d, want 18446744073709551614", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("18446744073709551615 << 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint64uint32rsh(t *testing.T) { + var x, r uint64 + var y uint32 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 4294967295 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x >> y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 >> 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("18446744073709551615 >> 1 = %d, want 9223372036854775807", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("18446744073709551615 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint64uint16lsh(t *testing.T) { + var x, r uint64 + var y uint16 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 65535 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x << y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 << 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x << y + if r != 18446744073709551614 { + t.Errorf("18446744073709551615 << 1 = %d, want 18446744073709551614", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("18446744073709551615 << 65535 = %d, want 0", r) + } +} +func TestConstFolduint64uint16rsh(t *testing.T) { + var x, r uint64 + var y uint16 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 65535 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x >> y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 >> 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("18446744073709551615 >> 1 = %d, want 9223372036854775807", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("18446744073709551615 >> 65535 = %d, want 0", r) + } +} +func TestConstFolduint64uint8lsh(t *testing.T) { + var x, r uint64 + var y uint8 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 255 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x << y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 << 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x << y + if r != 18446744073709551614 { + t.Errorf("18446744073709551615 << 1 = %d, want 18446744073709551614", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("18446744073709551615 << 255 = %d, want 0", r) + } +} +func TestConstFolduint64uint8rsh(t *testing.T) { + var x, r uint64 + var y uint8 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 255 = %d, want 0", r) + } + x = 18446744073709551615 + y = 0 + r = x >> y + if r != 18446744073709551615 { + t.Errorf("18446744073709551615 >> 0 = %d, want 18446744073709551615", r) + } + y = 1 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("18446744073709551615 >> 1 = %d, want 9223372036854775807", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("18446744073709551615 >> 255 = %d, want 0", r) + } +} +func TestConstFoldint64uint64lsh(t *testing.T) { + var x, r int64 + var y uint64 + x = -9223372036854775808 + y = 0 + r = x << y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 << 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 18446744073709551615 = %d, want 0", r) + } + x = -9223372036854775807 + y = 0 + r = x << y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 << 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-9223372036854775807 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775807 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775807 << 18446744073709551615 = %d, want 0", r) + } + x = -4294967296 + y = 0 + r = x << y + if r != -4294967296 { + t.Errorf("-4294967296 << 0 = %d, want -4294967296", r) + } + y = 1 + r = x << y + if r != -8589934592 { + t.Errorf("-4294967296 << 1 = %d, want -8589934592", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-4294967296 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-4294967296 << 18446744073709551615 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-1 << 18446744073709551615 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 18446744073709551615 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x << y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 << 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("9223372036854775806 << 1 = %d, want -4", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("9223372036854775806 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("9223372036854775806 << 18446744073709551615 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x << y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 << 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("9223372036854775807 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("9223372036854775807 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("9223372036854775807 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint64uint64rsh(t *testing.T) { + var x, r int64 + var y uint64 + x = -9223372036854775808 + y = 0 + r = x >> y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 >> 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775808 >> 1 = %d, want -4611686018427387904", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775808 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775808 >> 18446744073709551615 = %d, want -1", r) + } + x = -9223372036854775807 + y = 0 + r = x >> y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 >> 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775807 >> 1 = %d, want -4611686018427387904", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775807 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775807 >> 18446744073709551615 = %d, want -1", r) + } + x = -4294967296 + y = 0 + r = x >> y + if r != -4294967296 { + t.Errorf("-4294967296 >> 0 = %d, want -4294967296", r) + } + y = 1 + r = x >> y + if r != -2147483648 { + t.Errorf("-4294967296 >> 1 = %d, want -2147483648", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-4294967296 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-4294967296 >> 18446744073709551615 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 18446744073709551615 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 18446744073709551615 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x >> y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 >> 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775806 >> 1 = %d, want 4611686018427387903", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775806 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775806 >> 18446744073709551615 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 >> 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775807 >> 1 = %d, want 4611686018427387903", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775807 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775807 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint64uint32lsh(t *testing.T) { + var x, r int64 + var y uint32 + x = -9223372036854775808 + y = 0 + r = x << y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 << 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 4294967295 = %d, want 0", r) + } + x = -9223372036854775807 + y = 0 + r = x << y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 << 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-9223372036854775807 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775807 << 4294967295 = %d, want 0", r) + } + x = -4294967296 + y = 0 + r = x << y + if r != -4294967296 { + t.Errorf("-4294967296 << 0 = %d, want -4294967296", r) + } + y = 1 + r = x << y + if r != -8589934592 { + t.Errorf("-4294967296 << 1 = %d, want -8589934592", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-4294967296 << 4294967295 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967295 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 4294967295 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x << y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 << 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("9223372036854775806 << 1 = %d, want -4", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("9223372036854775806 << 4294967295 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x << y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 << 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("9223372036854775807 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("9223372036854775807 << 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint64uint32rsh(t *testing.T) { + var x, r int64 + var y uint32 + x = -9223372036854775808 + y = 0 + r = x >> y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 >> 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775808 >> 1 = %d, want -4611686018427387904", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775808 >> 4294967295 = %d, want -1", r) + } + x = -9223372036854775807 + y = 0 + r = x >> y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 >> 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775807 >> 1 = %d, want -4611686018427387904", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775807 >> 4294967295 = %d, want -1", r) + } + x = -4294967296 + y = 0 + r = x >> y + if r != -4294967296 { + t.Errorf("-4294967296 >> 0 = %d, want -4294967296", r) + } + y = 1 + r = x >> y + if r != -2147483648 { + t.Errorf("-4294967296 >> 1 = %d, want -2147483648", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-4294967296 >> 4294967295 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967295 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 4294967295 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x >> y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 >> 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775806 >> 1 = %d, want 4611686018427387903", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775806 >> 4294967295 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 >> 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775807 >> 1 = %d, want 4611686018427387903", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775807 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint64uint16lsh(t *testing.T) { + var x, r int64 + var y uint16 + x = -9223372036854775808 + y = 0 + r = x << y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 << 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 65535 = %d, want 0", r) + } + x = -9223372036854775807 + y = 0 + r = x << y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 << 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-9223372036854775807 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775807 << 65535 = %d, want 0", r) + } + x = -4294967296 + y = 0 + r = x << y + if r != -4294967296 { + t.Errorf("-4294967296 << 0 = %d, want -4294967296", r) + } + y = 1 + r = x << y + if r != -8589934592 { + t.Errorf("-4294967296 << 1 = %d, want -8589934592", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-4294967296 << 65535 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-1 << 65535 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 65535 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x << y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 << 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("9223372036854775806 << 1 = %d, want -4", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("9223372036854775806 << 65535 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x << y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 << 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("9223372036854775807 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("9223372036854775807 << 65535 = %d, want 0", r) + } +} +func TestConstFoldint64uint16rsh(t *testing.T) { + var x, r int64 + var y uint16 + x = -9223372036854775808 + y = 0 + r = x >> y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 >> 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775808 >> 1 = %d, want -4611686018427387904", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775808 >> 65535 = %d, want -1", r) + } + x = -9223372036854775807 + y = 0 + r = x >> y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 >> 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775807 >> 1 = %d, want -4611686018427387904", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775807 >> 65535 = %d, want -1", r) + } + x = -4294967296 + y = 0 + r = x >> y + if r != -4294967296 { + t.Errorf("-4294967296 >> 0 = %d, want -4294967296", r) + } + y = 1 + r = x >> y + if r != -2147483648 { + t.Errorf("-4294967296 >> 1 = %d, want -2147483648", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-4294967296 >> 65535 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 65535 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 65535 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x >> y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 >> 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775806 >> 1 = %d, want 4611686018427387903", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775806 >> 65535 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 >> 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775807 >> 1 = %d, want 4611686018427387903", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775807 >> 65535 = %d, want 0", r) + } +} +func TestConstFoldint64uint8lsh(t *testing.T) { + var x, r int64 + var y uint8 + x = -9223372036854775808 + y = 0 + r = x << y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 << 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775808 << 255 = %d, want 0", r) + } + x = -9223372036854775807 + y = 0 + r = x << y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 << 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-9223372036854775807 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-9223372036854775807 << 255 = %d, want 0", r) + } + x = -4294967296 + y = 0 + r = x << y + if r != -4294967296 { + t.Errorf("-4294967296 << 0 = %d, want -4294967296", r) + } + y = 1 + r = x << y + if r != -8589934592 { + t.Errorf("-4294967296 << 1 = %d, want -8589934592", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-4294967296 << 255 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-1 << 255 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x << y + if r != 4294967296 { + t.Errorf("4294967296 << 0 = %d, want 4294967296", r) + } + y = 1 + r = x << y + if r != 8589934592 { + t.Errorf("4294967296 << 1 = %d, want 8589934592", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("4294967296 << 255 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x << y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 << 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("9223372036854775806 << 1 = %d, want -4", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("9223372036854775806 << 255 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x << y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 << 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("9223372036854775807 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("9223372036854775807 << 255 = %d, want 0", r) + } +} +func TestConstFoldint64uint8rsh(t *testing.T) { + var x, r int64 + var y uint8 + x = -9223372036854775808 + y = 0 + r = x >> y + if r != -9223372036854775808 { + t.Errorf("-9223372036854775808 >> 0 = %d, want -9223372036854775808", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775808 >> 1 = %d, want -4611686018427387904", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775808 >> 255 = %d, want -1", r) + } + x = -9223372036854775807 + y = 0 + r = x >> y + if r != -9223372036854775807 { + t.Errorf("-9223372036854775807 >> 0 = %d, want -9223372036854775807", r) + } + y = 1 + r = x >> y + if r != -4611686018427387904 { + t.Errorf("-9223372036854775807 >> 1 = %d, want -4611686018427387904", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-9223372036854775807 >> 255 = %d, want -1", r) + } + x = -4294967296 + y = 0 + r = x >> y + if r != -4294967296 { + t.Errorf("-4294967296 >> 0 = %d, want -4294967296", r) + } + y = 1 + r = x >> y + if r != -2147483648 { + t.Errorf("-4294967296 >> 1 = %d, want -2147483648", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-4294967296 >> 255 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 255 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 4294967296 + y = 0 + r = x >> y + if r != 4294967296 { + t.Errorf("4294967296 >> 0 = %d, want 4294967296", r) + } + y = 1 + r = x >> y + if r != 2147483648 { + t.Errorf("4294967296 >> 1 = %d, want 2147483648", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("4294967296 >> 255 = %d, want 0", r) + } + x = 9223372036854775806 + y = 0 + r = x >> y + if r != 9223372036854775806 { + t.Errorf("9223372036854775806 >> 0 = %d, want 9223372036854775806", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775806 >> 1 = %d, want 4611686018427387903", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775806 >> 255 = %d, want 0", r) + } + x = 9223372036854775807 + y = 0 + r = x >> y + if r != 9223372036854775807 { + t.Errorf("9223372036854775807 >> 0 = %d, want 9223372036854775807", r) + } + y = 1 + r = x >> y + if r != 4611686018427387903 { + t.Errorf("9223372036854775807 >> 1 = %d, want 4611686018427387903", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("9223372036854775807 >> 255 = %d, want 0", r) + } +} +func TestConstFolduint32uint64lsh(t *testing.T) { + var x, r uint32 + var y uint64 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x << y + if r != 4294967295 { + t.Errorf("4294967295 << 0 = %d, want 4294967295", r) + } + y = 1 + r = x << y + if r != 4294967294 { + t.Errorf("4294967295 << 1 = %d, want 4294967294", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("4294967295 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("4294967295 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint32uint64rsh(t *testing.T) { + var x, r uint32 + var y uint64 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x >> y + if r != 4294967295 { + t.Errorf("4294967295 >> 0 = %d, want 4294967295", r) + } + y = 1 + r = x >> y + if r != 2147483647 { + t.Errorf("4294967295 >> 1 = %d, want 2147483647", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("4294967295 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("4294967295 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint32uint32lsh(t *testing.T) { + var x, r uint32 + var y uint32 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x << y + if r != 4294967295 { + t.Errorf("4294967295 << 0 = %d, want 4294967295", r) + } + y = 1 + r = x << y + if r != 4294967294 { + t.Errorf("4294967295 << 1 = %d, want 4294967294", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("4294967295 << 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint32uint32rsh(t *testing.T) { + var x, r uint32 + var y uint32 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x >> y + if r != 4294967295 { + t.Errorf("4294967295 >> 0 = %d, want 4294967295", r) + } + y = 1 + r = x >> y + if r != 2147483647 { + t.Errorf("4294967295 >> 1 = %d, want 2147483647", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("4294967295 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint32uint16lsh(t *testing.T) { + var x, r uint32 + var y uint16 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x << y + if r != 4294967295 { + t.Errorf("4294967295 << 0 = %d, want 4294967295", r) + } + y = 1 + r = x << y + if r != 4294967294 { + t.Errorf("4294967295 << 1 = %d, want 4294967294", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("4294967295 << 65535 = %d, want 0", r) + } +} +func TestConstFolduint32uint16rsh(t *testing.T) { + var x, r uint32 + var y uint16 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x >> y + if r != 4294967295 { + t.Errorf("4294967295 >> 0 = %d, want 4294967295", r) + } + y = 1 + r = x >> y + if r != 2147483647 { + t.Errorf("4294967295 >> 1 = %d, want 2147483647", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("4294967295 >> 65535 = %d, want 0", r) + } +} +func TestConstFolduint32uint8lsh(t *testing.T) { + var x, r uint32 + var y uint8 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x << y + if r != 4294967295 { + t.Errorf("4294967295 << 0 = %d, want 4294967295", r) + } + y = 1 + r = x << y + if r != 4294967294 { + t.Errorf("4294967295 << 1 = %d, want 4294967294", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("4294967295 << 255 = %d, want 0", r) + } +} +func TestConstFolduint32uint8rsh(t *testing.T) { + var x, r uint32 + var y uint8 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 4294967295 + y = 0 + r = x >> y + if r != 4294967295 { + t.Errorf("4294967295 >> 0 = %d, want 4294967295", r) + } + y = 1 + r = x >> y + if r != 2147483647 { + t.Errorf("4294967295 >> 1 = %d, want 2147483647", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("4294967295 >> 255 = %d, want 0", r) + } +} +func TestConstFoldint32uint64lsh(t *testing.T) { + var x, r int32 + var y uint64 + x = -2147483648 + y = 0 + r = x << y + if r != -2147483648 { + t.Errorf("-2147483648 << 0 = %d, want -2147483648", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 18446744073709551615 = %d, want 0", r) + } + x = -2147483647 + y = 0 + r = x << y + if r != -2147483647 { + t.Errorf("-2147483647 << 0 = %d, want -2147483647", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-2147483647 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-2147483647 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-2147483647 << 18446744073709551615 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-1 << 18446744073709551615 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x << y + if r != 2147483647 { + t.Errorf("2147483647 << 0 = %d, want 2147483647", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("2147483647 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("2147483647 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("2147483647 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint32uint64rsh(t *testing.T) { + var x, r int32 + var y uint64 + x = -2147483648 + y = 0 + r = x >> y + if r != -2147483648 { + t.Errorf("-2147483648 >> 0 = %d, want -2147483648", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483648 >> 1 = %d, want -1073741824", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-2147483648 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-2147483648 >> 18446744073709551615 = %d, want -1", r) + } + x = -2147483647 + y = 0 + r = x >> y + if r != -2147483647 { + t.Errorf("-2147483647 >> 0 = %d, want -2147483647", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483647 >> 1 = %d, want -1073741824", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-2147483647 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-2147483647 >> 18446744073709551615 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 18446744073709551615 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x >> y + if r != 2147483647 { + t.Errorf("2147483647 >> 0 = %d, want 2147483647", r) + } + y = 1 + r = x >> y + if r != 1073741823 { + t.Errorf("2147483647 >> 1 = %d, want 1073741823", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("2147483647 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("2147483647 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint32uint32lsh(t *testing.T) { + var x, r int32 + var y uint32 + x = -2147483648 + y = 0 + r = x << y + if r != -2147483648 { + t.Errorf("-2147483648 << 0 = %d, want -2147483648", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 4294967295 = %d, want 0", r) + } + x = -2147483647 + y = 0 + r = x << y + if r != -2147483647 { + t.Errorf("-2147483647 << 0 = %d, want -2147483647", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-2147483647 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-2147483647 << 4294967295 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967295 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x << y + if r != 2147483647 { + t.Errorf("2147483647 << 0 = %d, want 2147483647", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("2147483647 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("2147483647 << 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint32uint32rsh(t *testing.T) { + var x, r int32 + var y uint32 + x = -2147483648 + y = 0 + r = x >> y + if r != -2147483648 { + t.Errorf("-2147483648 >> 0 = %d, want -2147483648", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483648 >> 1 = %d, want -1073741824", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-2147483648 >> 4294967295 = %d, want -1", r) + } + x = -2147483647 + y = 0 + r = x >> y + if r != -2147483647 { + t.Errorf("-2147483647 >> 0 = %d, want -2147483647", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483647 >> 1 = %d, want -1073741824", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-2147483647 >> 4294967295 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967295 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x >> y + if r != 2147483647 { + t.Errorf("2147483647 >> 0 = %d, want 2147483647", r) + } + y = 1 + r = x >> y + if r != 1073741823 { + t.Errorf("2147483647 >> 1 = %d, want 1073741823", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("2147483647 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint32uint16lsh(t *testing.T) { + var x, r int32 + var y uint16 + x = -2147483648 + y = 0 + r = x << y + if r != -2147483648 { + t.Errorf("-2147483648 << 0 = %d, want -2147483648", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 65535 = %d, want 0", r) + } + x = -2147483647 + y = 0 + r = x << y + if r != -2147483647 { + t.Errorf("-2147483647 << 0 = %d, want -2147483647", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-2147483647 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-2147483647 << 65535 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-1 << 65535 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x << y + if r != 2147483647 { + t.Errorf("2147483647 << 0 = %d, want 2147483647", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("2147483647 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("2147483647 << 65535 = %d, want 0", r) + } +} +func TestConstFoldint32uint16rsh(t *testing.T) { + var x, r int32 + var y uint16 + x = -2147483648 + y = 0 + r = x >> y + if r != -2147483648 { + t.Errorf("-2147483648 >> 0 = %d, want -2147483648", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483648 >> 1 = %d, want -1073741824", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-2147483648 >> 65535 = %d, want -1", r) + } + x = -2147483647 + y = 0 + r = x >> y + if r != -2147483647 { + t.Errorf("-2147483647 >> 0 = %d, want -2147483647", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483647 >> 1 = %d, want -1073741824", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-2147483647 >> 65535 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 65535 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x >> y + if r != 2147483647 { + t.Errorf("2147483647 >> 0 = %d, want 2147483647", r) + } + y = 1 + r = x >> y + if r != 1073741823 { + t.Errorf("2147483647 >> 1 = %d, want 1073741823", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("2147483647 >> 65535 = %d, want 0", r) + } +} +func TestConstFoldint32uint8lsh(t *testing.T) { + var x, r int32 + var y uint8 + x = -2147483648 + y = 0 + r = x << y + if r != -2147483648 { + t.Errorf("-2147483648 << 0 = %d, want -2147483648", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-2147483648 << 255 = %d, want 0", r) + } + x = -2147483647 + y = 0 + r = x << y + if r != -2147483647 { + t.Errorf("-2147483647 << 0 = %d, want -2147483647", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-2147483647 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-2147483647 << 255 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-1 << 255 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x << y + if r != 2147483647 { + t.Errorf("2147483647 << 0 = %d, want 2147483647", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("2147483647 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("2147483647 << 255 = %d, want 0", r) + } +} +func TestConstFoldint32uint8rsh(t *testing.T) { + var x, r int32 + var y uint8 + x = -2147483648 + y = 0 + r = x >> y + if r != -2147483648 { + t.Errorf("-2147483648 >> 0 = %d, want -2147483648", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483648 >> 1 = %d, want -1073741824", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-2147483648 >> 255 = %d, want -1", r) + } + x = -2147483647 + y = 0 + r = x >> y + if r != -2147483647 { + t.Errorf("-2147483647 >> 0 = %d, want -2147483647", r) + } + y = 1 + r = x >> y + if r != -1073741824 { + t.Errorf("-2147483647 >> 1 = %d, want -1073741824", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-2147483647 >> 255 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 255 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 2147483647 + y = 0 + r = x >> y + if r != 2147483647 { + t.Errorf("2147483647 >> 0 = %d, want 2147483647", r) + } + y = 1 + r = x >> y + if r != 1073741823 { + t.Errorf("2147483647 >> 1 = %d, want 1073741823", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("2147483647 >> 255 = %d, want 0", r) + } +} +func TestConstFolduint16uint64lsh(t *testing.T) { + var x, r uint16 + var y uint64 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x << y + if r != 65535 { + t.Errorf("65535 << 0 = %d, want 65535", r) + } + y = 1 + r = x << y + if r != 65534 { + t.Errorf("65535 << 1 = %d, want 65534", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("65535 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("65535 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint16uint64rsh(t *testing.T) { + var x, r uint16 + var y uint64 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x >> y + if r != 65535 { + t.Errorf("65535 >> 0 = %d, want 65535", r) + } + y = 1 + r = x >> y + if r != 32767 { + t.Errorf("65535 >> 1 = %d, want 32767", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("65535 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("65535 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint16uint32lsh(t *testing.T) { + var x, r uint16 + var y uint32 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x << y + if r != 65535 { + t.Errorf("65535 << 0 = %d, want 65535", r) + } + y = 1 + r = x << y + if r != 65534 { + t.Errorf("65535 << 1 = %d, want 65534", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("65535 << 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint16uint32rsh(t *testing.T) { + var x, r uint16 + var y uint32 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x >> y + if r != 65535 { + t.Errorf("65535 >> 0 = %d, want 65535", r) + } + y = 1 + r = x >> y + if r != 32767 { + t.Errorf("65535 >> 1 = %d, want 32767", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("65535 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint16uint16lsh(t *testing.T) { + var x, r uint16 + var y uint16 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x << y + if r != 65535 { + t.Errorf("65535 << 0 = %d, want 65535", r) + } + y = 1 + r = x << y + if r != 65534 { + t.Errorf("65535 << 1 = %d, want 65534", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("65535 << 65535 = %d, want 0", r) + } +} +func TestConstFolduint16uint16rsh(t *testing.T) { + var x, r uint16 + var y uint16 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x >> y + if r != 65535 { + t.Errorf("65535 >> 0 = %d, want 65535", r) + } + y = 1 + r = x >> y + if r != 32767 { + t.Errorf("65535 >> 1 = %d, want 32767", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("65535 >> 65535 = %d, want 0", r) + } +} +func TestConstFolduint16uint8lsh(t *testing.T) { + var x, r uint16 + var y uint8 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x << y + if r != 65535 { + t.Errorf("65535 << 0 = %d, want 65535", r) + } + y = 1 + r = x << y + if r != 65534 { + t.Errorf("65535 << 1 = %d, want 65534", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("65535 << 255 = %d, want 0", r) + } +} +func TestConstFolduint16uint8rsh(t *testing.T) { + var x, r uint16 + var y uint8 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 65535 + y = 0 + r = x >> y + if r != 65535 { + t.Errorf("65535 >> 0 = %d, want 65535", r) + } + y = 1 + r = x >> y + if r != 32767 { + t.Errorf("65535 >> 1 = %d, want 32767", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("65535 >> 255 = %d, want 0", r) + } +} +func TestConstFoldint16uint64lsh(t *testing.T) { + var x, r int16 + var y uint64 + x = -32768 + y = 0 + r = x << y + if r != -32768 { + t.Errorf("-32768 << 0 = %d, want -32768", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-32768 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-32768 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-32768 << 18446744073709551615 = %d, want 0", r) + } + x = -32767 + y = 0 + r = x << y + if r != -32767 { + t.Errorf("-32767 << 0 = %d, want -32767", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-32767 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-32767 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-32767 << 18446744073709551615 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-1 << 18446744073709551615 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x << y + if r != 32766 { + t.Errorf("32766 << 0 = %d, want 32766", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("32766 << 1 = %d, want -4", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("32766 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("32766 << 18446744073709551615 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x << y + if r != 32767 { + t.Errorf("32767 << 0 = %d, want 32767", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("32767 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("32767 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("32767 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint16uint64rsh(t *testing.T) { + var x, r int16 + var y uint64 + x = -32768 + y = 0 + r = x >> y + if r != -32768 { + t.Errorf("-32768 >> 0 = %d, want -32768", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32768 >> 1 = %d, want -16384", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-32768 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-32768 >> 18446744073709551615 = %d, want -1", r) + } + x = -32767 + y = 0 + r = x >> y + if r != -32767 { + t.Errorf("-32767 >> 0 = %d, want -32767", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32767 >> 1 = %d, want -16384", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-32767 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-32767 >> 18446744073709551615 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 18446744073709551615 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x >> y + if r != 32766 { + t.Errorf("32766 >> 0 = %d, want 32766", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32766 >> 1 = %d, want 16383", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("32766 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("32766 >> 18446744073709551615 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x >> y + if r != 32767 { + t.Errorf("32767 >> 0 = %d, want 32767", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32767 >> 1 = %d, want 16383", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("32767 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("32767 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint16uint32lsh(t *testing.T) { + var x, r int16 + var y uint32 + x = -32768 + y = 0 + r = x << y + if r != -32768 { + t.Errorf("-32768 << 0 = %d, want -32768", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-32768 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-32768 << 4294967295 = %d, want 0", r) + } + x = -32767 + y = 0 + r = x << y + if r != -32767 { + t.Errorf("-32767 << 0 = %d, want -32767", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-32767 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-32767 << 4294967295 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967295 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x << y + if r != 32766 { + t.Errorf("32766 << 0 = %d, want 32766", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("32766 << 1 = %d, want -4", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("32766 << 4294967295 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x << y + if r != 32767 { + t.Errorf("32767 << 0 = %d, want 32767", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("32767 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("32767 << 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint16uint32rsh(t *testing.T) { + var x, r int16 + var y uint32 + x = -32768 + y = 0 + r = x >> y + if r != -32768 { + t.Errorf("-32768 >> 0 = %d, want -32768", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32768 >> 1 = %d, want -16384", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-32768 >> 4294967295 = %d, want -1", r) + } + x = -32767 + y = 0 + r = x >> y + if r != -32767 { + t.Errorf("-32767 >> 0 = %d, want -32767", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32767 >> 1 = %d, want -16384", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-32767 >> 4294967295 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967295 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x >> y + if r != 32766 { + t.Errorf("32766 >> 0 = %d, want 32766", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32766 >> 1 = %d, want 16383", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("32766 >> 4294967295 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x >> y + if r != 32767 { + t.Errorf("32767 >> 0 = %d, want 32767", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32767 >> 1 = %d, want 16383", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("32767 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint16uint16lsh(t *testing.T) { + var x, r int16 + var y uint16 + x = -32768 + y = 0 + r = x << y + if r != -32768 { + t.Errorf("-32768 << 0 = %d, want -32768", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-32768 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-32768 << 65535 = %d, want 0", r) + } + x = -32767 + y = 0 + r = x << y + if r != -32767 { + t.Errorf("-32767 << 0 = %d, want -32767", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-32767 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-32767 << 65535 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-1 << 65535 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x << y + if r != 32766 { + t.Errorf("32766 << 0 = %d, want 32766", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("32766 << 1 = %d, want -4", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("32766 << 65535 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x << y + if r != 32767 { + t.Errorf("32767 << 0 = %d, want 32767", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("32767 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("32767 << 65535 = %d, want 0", r) + } +} +func TestConstFoldint16uint16rsh(t *testing.T) { + var x, r int16 + var y uint16 + x = -32768 + y = 0 + r = x >> y + if r != -32768 { + t.Errorf("-32768 >> 0 = %d, want -32768", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32768 >> 1 = %d, want -16384", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-32768 >> 65535 = %d, want -1", r) + } + x = -32767 + y = 0 + r = x >> y + if r != -32767 { + t.Errorf("-32767 >> 0 = %d, want -32767", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32767 >> 1 = %d, want -16384", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-32767 >> 65535 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 65535 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x >> y + if r != 32766 { + t.Errorf("32766 >> 0 = %d, want 32766", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32766 >> 1 = %d, want 16383", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("32766 >> 65535 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x >> y + if r != 32767 { + t.Errorf("32767 >> 0 = %d, want 32767", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32767 >> 1 = %d, want 16383", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("32767 >> 65535 = %d, want 0", r) + } +} +func TestConstFoldint16uint8lsh(t *testing.T) { + var x, r int16 + var y uint8 + x = -32768 + y = 0 + r = x << y + if r != -32768 { + t.Errorf("-32768 << 0 = %d, want -32768", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-32768 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-32768 << 255 = %d, want 0", r) + } + x = -32767 + y = 0 + r = x << y + if r != -32767 { + t.Errorf("-32767 << 0 = %d, want -32767", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-32767 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-32767 << 255 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-1 << 255 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x << y + if r != 32766 { + t.Errorf("32766 << 0 = %d, want 32766", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("32766 << 1 = %d, want -4", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("32766 << 255 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x << y + if r != 32767 { + t.Errorf("32767 << 0 = %d, want 32767", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("32767 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("32767 << 255 = %d, want 0", r) + } +} +func TestConstFoldint16uint8rsh(t *testing.T) { + var x, r int16 + var y uint8 + x = -32768 + y = 0 + r = x >> y + if r != -32768 { + t.Errorf("-32768 >> 0 = %d, want -32768", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32768 >> 1 = %d, want -16384", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-32768 >> 255 = %d, want -1", r) + } + x = -32767 + y = 0 + r = x >> y + if r != -32767 { + t.Errorf("-32767 >> 0 = %d, want -32767", r) + } + y = 1 + r = x >> y + if r != -16384 { + t.Errorf("-32767 >> 1 = %d, want -16384", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-32767 >> 255 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 255 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 32766 + y = 0 + r = x >> y + if r != 32766 { + t.Errorf("32766 >> 0 = %d, want 32766", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32766 >> 1 = %d, want 16383", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("32766 >> 255 = %d, want 0", r) + } + x = 32767 + y = 0 + r = x >> y + if r != 32767 { + t.Errorf("32767 >> 0 = %d, want 32767", r) + } + y = 1 + r = x >> y + if r != 16383 { + t.Errorf("32767 >> 1 = %d, want 16383", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("32767 >> 255 = %d, want 0", r) + } +} +func TestConstFolduint8uint64lsh(t *testing.T) { + var x, r uint8 + var y uint64 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 255 + y = 0 + r = x << y + if r != 255 { + t.Errorf("255 << 0 = %d, want 255", r) + } + y = 1 + r = x << y + if r != 254 { + t.Errorf("255 << 1 = %d, want 254", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("255 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("255 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint8uint64rsh(t *testing.T) { + var x, r uint8 + var y uint64 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 255 + y = 0 + r = x >> y + if r != 255 { + t.Errorf("255 >> 0 = %d, want 255", r) + } + y = 1 + r = x >> y + if r != 127 { + t.Errorf("255 >> 1 = %d, want 127", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("255 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("255 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFolduint8uint32lsh(t *testing.T) { + var x, r uint8 + var y uint32 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 255 + y = 0 + r = x << y + if r != 255 { + t.Errorf("255 << 0 = %d, want 255", r) + } + y = 1 + r = x << y + if r != 254 { + t.Errorf("255 << 1 = %d, want 254", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("255 << 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint8uint32rsh(t *testing.T) { + var x, r uint8 + var y uint32 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 255 + y = 0 + r = x >> y + if r != 255 { + t.Errorf("255 >> 0 = %d, want 255", r) + } + y = 1 + r = x >> y + if r != 127 { + t.Errorf("255 >> 1 = %d, want 127", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("255 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFolduint8uint16lsh(t *testing.T) { + var x, r uint8 + var y uint16 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 255 + y = 0 + r = x << y + if r != 255 { + t.Errorf("255 << 0 = %d, want 255", r) + } + y = 1 + r = x << y + if r != 254 { + t.Errorf("255 << 1 = %d, want 254", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("255 << 65535 = %d, want 0", r) + } +} +func TestConstFolduint8uint16rsh(t *testing.T) { + var x, r uint8 + var y uint16 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 255 + y = 0 + r = x >> y + if r != 255 { + t.Errorf("255 >> 0 = %d, want 255", r) + } + y = 1 + r = x >> y + if r != 127 { + t.Errorf("255 >> 1 = %d, want 127", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("255 >> 65535 = %d, want 0", r) + } +} +func TestConstFolduint8uint8lsh(t *testing.T) { + var x, r uint8 + var y uint8 + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 255 + y = 0 + r = x << y + if r != 255 { + t.Errorf("255 << 0 = %d, want 255", r) + } + y = 1 + r = x << y + if r != 254 { + t.Errorf("255 << 1 = %d, want 254", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("255 << 255 = %d, want 0", r) + } +} +func TestConstFolduint8uint8rsh(t *testing.T) { + var x, r uint8 + var y uint8 + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 255 + y = 0 + r = x >> y + if r != 255 { + t.Errorf("255 >> 0 = %d, want 255", r) + } + y = 1 + r = x >> y + if r != 127 { + t.Errorf("255 >> 1 = %d, want 127", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("255 >> 255 = %d, want 0", r) + } +} +func TestConstFoldint8uint64lsh(t *testing.T) { + var x, r int8 + var y uint64 + x = -128 + y = 0 + r = x << y + if r != -128 { + t.Errorf("-128 << 0 = %d, want -128", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-128 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-128 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-128 << 18446744073709551615 = %d, want 0", r) + } + x = -127 + y = 0 + r = x << y + if r != -127 { + t.Errorf("-127 << 0 = %d, want -127", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-127 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-127 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-127 << 18446744073709551615 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("-1 << 18446744073709551615 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("0 << 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("1 << 18446744073709551615 = %d, want 0", r) + } + x = 126 + y = 0 + r = x << y + if r != 126 { + t.Errorf("126 << 0 = %d, want 126", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("126 << 1 = %d, want -4", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("126 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("126 << 18446744073709551615 = %d, want 0", r) + } + x = 127 + y = 0 + r = x << y + if r != 127 { + t.Errorf("127 << 0 = %d, want 127", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("127 << 1 = %d, want -2", r) + } + y = 4294967296 + r = x << y + if r != 0 { + t.Errorf("127 << 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x << y + if r != 0 { + t.Errorf("127 << 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint8uint64rsh(t *testing.T) { + var x, r int8 + var y uint64 + x = -128 + y = 0 + r = x >> y + if r != -128 { + t.Errorf("-128 >> 0 = %d, want -128", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-128 >> 1 = %d, want -64", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-128 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-128 >> 18446744073709551615 = %d, want -1", r) + } + x = -127 + y = 0 + r = x >> y + if r != -127 { + t.Errorf("-127 >> 0 = %d, want -127", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-127 >> 1 = %d, want -64", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-127 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-127 >> 18446744073709551615 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967296 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967296 = %d, want -1", r) + } + y = 18446744073709551615 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 18446744073709551615 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("0 >> 18446744073709551615 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("1 >> 18446744073709551615 = %d, want 0", r) + } + x = 126 + y = 0 + r = x >> y + if r != 126 { + t.Errorf("126 >> 0 = %d, want 126", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("126 >> 1 = %d, want 63", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("126 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("126 >> 18446744073709551615 = %d, want 0", r) + } + x = 127 + y = 0 + r = x >> y + if r != 127 { + t.Errorf("127 >> 0 = %d, want 127", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("127 >> 1 = %d, want 63", r) + } + y = 4294967296 + r = x >> y + if r != 0 { + t.Errorf("127 >> 4294967296 = %d, want 0", r) + } + y = 18446744073709551615 + r = x >> y + if r != 0 { + t.Errorf("127 >> 18446744073709551615 = %d, want 0", r) + } +} +func TestConstFoldint8uint32lsh(t *testing.T) { + var x, r int8 + var y uint32 + x = -128 + y = 0 + r = x << y + if r != -128 { + t.Errorf("-128 << 0 = %d, want -128", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-128 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-128 << 4294967295 = %d, want 0", r) + } + x = -127 + y = 0 + r = x << y + if r != -127 { + t.Errorf("-127 << 0 = %d, want -127", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-127 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-127 << 4294967295 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("-1 << 4294967295 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("0 << 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("1 << 4294967295 = %d, want 0", r) + } + x = 126 + y = 0 + r = x << y + if r != 126 { + t.Errorf("126 << 0 = %d, want 126", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("126 << 1 = %d, want -4", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("126 << 4294967295 = %d, want 0", r) + } + x = 127 + y = 0 + r = x << y + if r != 127 { + t.Errorf("127 << 0 = %d, want 127", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("127 << 1 = %d, want -2", r) + } + y = 4294967295 + r = x << y + if r != 0 { + t.Errorf("127 << 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint8uint32rsh(t *testing.T) { + var x, r int8 + var y uint32 + x = -128 + y = 0 + r = x >> y + if r != -128 { + t.Errorf("-128 >> 0 = %d, want -128", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-128 >> 1 = %d, want -64", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-128 >> 4294967295 = %d, want -1", r) + } + x = -127 + y = 0 + r = x >> y + if r != -127 { + t.Errorf("-127 >> 0 = %d, want -127", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-127 >> 1 = %d, want -64", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-127 >> 4294967295 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 4294967295 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 4294967295 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("0 >> 4294967295 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("1 >> 4294967295 = %d, want 0", r) + } + x = 126 + y = 0 + r = x >> y + if r != 126 { + t.Errorf("126 >> 0 = %d, want 126", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("126 >> 1 = %d, want 63", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("126 >> 4294967295 = %d, want 0", r) + } + x = 127 + y = 0 + r = x >> y + if r != 127 { + t.Errorf("127 >> 0 = %d, want 127", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("127 >> 1 = %d, want 63", r) + } + y = 4294967295 + r = x >> y + if r != 0 { + t.Errorf("127 >> 4294967295 = %d, want 0", r) + } +} +func TestConstFoldint8uint16lsh(t *testing.T) { + var x, r int8 + var y uint16 + x = -128 + y = 0 + r = x << y + if r != -128 { + t.Errorf("-128 << 0 = %d, want -128", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-128 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-128 << 65535 = %d, want 0", r) + } + x = -127 + y = 0 + r = x << y + if r != -127 { + t.Errorf("-127 << 0 = %d, want -127", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-127 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-127 << 65535 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("-1 << 65535 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("0 << 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("1 << 65535 = %d, want 0", r) + } + x = 126 + y = 0 + r = x << y + if r != 126 { + t.Errorf("126 << 0 = %d, want 126", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("126 << 1 = %d, want -4", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("126 << 65535 = %d, want 0", r) + } + x = 127 + y = 0 + r = x << y + if r != 127 { + t.Errorf("127 << 0 = %d, want 127", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("127 << 1 = %d, want -2", r) + } + y = 65535 + r = x << y + if r != 0 { + t.Errorf("127 << 65535 = %d, want 0", r) + } +} +func TestConstFoldint8uint16rsh(t *testing.T) { + var x, r int8 + var y uint16 + x = -128 + y = 0 + r = x >> y + if r != -128 { + t.Errorf("-128 >> 0 = %d, want -128", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-128 >> 1 = %d, want -64", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-128 >> 65535 = %d, want -1", r) + } + x = -127 + y = 0 + r = x >> y + if r != -127 { + t.Errorf("-127 >> 0 = %d, want -127", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-127 >> 1 = %d, want -64", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-127 >> 65535 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 65535 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 65535 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("0 >> 65535 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("1 >> 65535 = %d, want 0", r) + } + x = 126 + y = 0 + r = x >> y + if r != 126 { + t.Errorf("126 >> 0 = %d, want 126", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("126 >> 1 = %d, want 63", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("126 >> 65535 = %d, want 0", r) + } + x = 127 + y = 0 + r = x >> y + if r != 127 { + t.Errorf("127 >> 0 = %d, want 127", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("127 >> 1 = %d, want 63", r) + } + y = 65535 + r = x >> y + if r != 0 { + t.Errorf("127 >> 65535 = %d, want 0", r) + } +} +func TestConstFoldint8uint8lsh(t *testing.T) { + var x, r int8 + var y uint8 + x = -128 + y = 0 + r = x << y + if r != -128 { + t.Errorf("-128 << 0 = %d, want -128", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("-128 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-128 << 255 = %d, want 0", r) + } + x = -127 + y = 0 + r = x << y + if r != -127 { + t.Errorf("-127 << 0 = %d, want -127", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("-127 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-127 << 255 = %d, want 0", r) + } + x = -1 + y = 0 + r = x << y + if r != -1 { + t.Errorf("-1 << 0 = %d, want -1", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("-1 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("-1 << 255 = %d, want 0", r) + } + x = 0 + y = 0 + r = x << y + if r != 0 { + t.Errorf("0 << 0 = %d, want 0", r) + } + y = 1 + r = x << y + if r != 0 { + t.Errorf("0 << 1 = %d, want 0", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("0 << 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x << y + if r != 1 { + t.Errorf("1 << 0 = %d, want 1", r) + } + y = 1 + r = x << y + if r != 2 { + t.Errorf("1 << 1 = %d, want 2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("1 << 255 = %d, want 0", r) + } + x = 126 + y = 0 + r = x << y + if r != 126 { + t.Errorf("126 << 0 = %d, want 126", r) + } + y = 1 + r = x << y + if r != -4 { + t.Errorf("126 << 1 = %d, want -4", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("126 << 255 = %d, want 0", r) + } + x = 127 + y = 0 + r = x << y + if r != 127 { + t.Errorf("127 << 0 = %d, want 127", r) + } + y = 1 + r = x << y + if r != -2 { + t.Errorf("127 << 1 = %d, want -2", r) + } + y = 255 + r = x << y + if r != 0 { + t.Errorf("127 << 255 = %d, want 0", r) + } +} +func TestConstFoldint8uint8rsh(t *testing.T) { + var x, r int8 + var y uint8 + x = -128 + y = 0 + r = x >> y + if r != -128 { + t.Errorf("-128 >> 0 = %d, want -128", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-128 >> 1 = %d, want -64", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-128 >> 255 = %d, want -1", r) + } + x = -127 + y = 0 + r = x >> y + if r != -127 { + t.Errorf("-127 >> 0 = %d, want -127", r) + } + y = 1 + r = x >> y + if r != -64 { + t.Errorf("-127 >> 1 = %d, want -64", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-127 >> 255 = %d, want -1", r) + } + x = -1 + y = 0 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 0 = %d, want -1", r) + } + y = 1 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 1 = %d, want -1", r) + } + y = 255 + r = x >> y + if r != -1 { + t.Errorf("-1 >> 255 = %d, want -1", r) + } + x = 0 + y = 0 + r = x >> y + if r != 0 { + t.Errorf("0 >> 0 = %d, want 0", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("0 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("0 >> 255 = %d, want 0", r) + } + x = 1 + y = 0 + r = x >> y + if r != 1 { + t.Errorf("1 >> 0 = %d, want 1", r) + } + y = 1 + r = x >> y + if r != 0 { + t.Errorf("1 >> 1 = %d, want 0", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("1 >> 255 = %d, want 0", r) + } + x = 126 + y = 0 + r = x >> y + if r != 126 { + t.Errorf("126 >> 0 = %d, want 126", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("126 >> 1 = %d, want 63", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("126 >> 255 = %d, want 0", r) + } + x = 127 + y = 0 + r = x >> y + if r != 127 { + t.Errorf("127 >> 0 = %d, want 127", r) + } + y = 1 + r = x >> y + if r != 63 { + t.Errorf("127 >> 1 = %d, want 63", r) + } + y = 255 + r = x >> y + if r != 0 { + t.Errorf("127 >> 255 = %d, want 0", r) + } +} diff --git a/src/cmd/compile/internal/gc/testdata/gen/constFoldGen.go b/src/cmd/compile/internal/gc/testdata/gen/constFoldGen.go new file mode 100644 index 0000000000..eea6165938 --- /dev/null +++ b/src/cmd/compile/internal/gc/testdata/gen/constFoldGen.go @@ -0,0 +1,224 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This program generates a test to verify that the standard arithmetic +// operators properly handle constant folding. The test file should be +// generated with a known working version of go. +// launch with `go run constFoldGen.go` a file called constFold_test.go +// will be written into the grandparent directory containing the tests. + +package main + +import ( + "bytes" + "fmt" + "go/format" + "io/ioutil" + "log" +) + +type op struct { + name, symbol string +} +type szD struct { + name string + sn string + u []uint64 + i []int64 +} + +var szs []szD = []szD{ + szD{name: "uint64", sn: "64", u: []uint64{0, 1, 4294967296, 0xffffFFFFffffFFFF}}, + szD{name: "int64", sn: "64", i: []int64{-0x8000000000000000, -0x7FFFFFFFFFFFFFFF, + -4294967296, -1, 0, 1, 4294967296, 0x7FFFFFFFFFFFFFFE, 0x7FFFFFFFFFFFFFFF}}, + + szD{name: "uint32", sn: "32", u: []uint64{0, 1, 4294967295}}, + szD{name: "int32", sn: "32", i: []int64{-0x80000000, -0x7FFFFFFF, -1, 0, + 1, 0x7FFFFFFF}}, + + szD{name: "uint16", sn: "16", u: []uint64{0, 1, 65535}}, + szD{name: "int16", sn: "16", i: []int64{-32768, -32767, -1, 0, 1, 32766, 32767}}, + + szD{name: "uint8", sn: "8", u: []uint64{0, 1, 255}}, + szD{name: "int8", sn: "8", i: []int64{-128, -127, -1, 0, 1, 126, 127}}, +} + +var ops = []op{ + op{"add", "+"}, op{"sub", "-"}, op{"div", "/"}, op{"mul", "*"}, + op{"lsh", "<<"}, op{"rsh", ">>"}, op{"mod", "%"}, +} + +// compute the result of i op j, cast as type t. +func ansU(i, j uint64, t, op string) string { + var ans uint64 + switch op { + case "+": + ans = i + j + case "-": + ans = i - j + case "*": + ans = i * j + case "/": + if j != 0 { + ans = i / j + } + case "%": + if j != 0 { + ans = i % j + } + case "<<": + ans = i << j + case ">>": + ans = i >> j + } + switch t { + case "uint32": + ans = uint64(uint32(ans)) + case "uint16": + ans = uint64(uint16(ans)) + case "uint8": + ans = uint64(uint8(ans)) + } + return fmt.Sprintf("%d", ans) +} + +// compute the result of i op j, cast as type t. +func ansS(i, j int64, t, op string) string { + var ans int64 + switch op { + case "+": + ans = i + j + case "-": + ans = i - j + case "*": + ans = i * j + case "/": + if j != 0 { + ans = i / j + } + case "%": + if j != 0 { + ans = i % j + } + case "<<": + ans = i << uint64(j) + case ">>": + ans = i >> uint64(j) + } + switch t { + case "int32": + ans = int64(int32(ans)) + case "int16": + ans = int64(int16(ans)) + case "int8": + ans = int64(int8(ans)) + } + return fmt.Sprintf("%d", ans) +} + +func main() { + + w := new(bytes.Buffer) + + fmt.Fprintf(w, "package gc\n") + fmt.Fprintf(w, "import \"testing\"\n") + + for _, s := range szs { + for _, o := range ops { + if o.symbol == "<<" || o.symbol == ">>" { + // shifts handled separately below, as they can have + // different types on the LHS and RHS. + continue + } + fmt.Fprintf(w, "func TestConstFold%s%s(t *testing.T) {\n", s.name, o.name) + fmt.Fprintf(w, "\tvar x, y, r %s\n", s.name) + // unsigned test cases + for _, c := range s.u { + fmt.Fprintf(w, "\tx = %d\n", c) + for _, d := range s.u { + if d == 0 && (o.symbol == "/" || o.symbol == "%") { + continue + } + fmt.Fprintf(w, "\ty = %d\n", d) + fmt.Fprintf(w, "\tr = x %s y\n", o.symbol) + want := ansU(c, d, s.name, o.symbol) + fmt.Fprintf(w, "\tif r != %s {\n", want) + fmt.Fprintf(w, "\t\tt.Errorf(\"%d %s %d = %%d, want %s\", r)\n", c, o.symbol, d, want) + fmt.Fprintf(w, "\t}\n") + } + } + // signed test cases + for _, c := range s.i { + fmt.Fprintf(w, "\tx = %d\n", c) + for _, d := range s.i { + if d == 0 && (o.symbol == "/" || o.symbol == "%") { + continue + } + fmt.Fprintf(w, "\ty = %d\n", d) + fmt.Fprintf(w, "\tr = x %s y\n", o.symbol) + want := ansS(c, d, s.name, o.symbol) + fmt.Fprintf(w, "\tif r != %s {\n", want) + fmt.Fprintf(w, "\t\tt.Errorf(\"%d %s %d = %%d, want %s\", r)\n", c, o.symbol, d, want) + fmt.Fprintf(w, "\t}\n") + } + } + fmt.Fprintf(w, "}\n") + } + } + + // Special signed/unsigned cases for shifts + for _, ls := range szs { + for _, rs := range szs { + if rs.name[0] != 'u' { + continue + } + for _, o := range ops { + if o.symbol != "<<" && o.symbol != ">>" { + continue + } + fmt.Fprintf(w, "func TestConstFold%s%s%s(t *testing.T) {\n", ls.name, rs.name, o.name) + fmt.Fprintf(w, "\tvar x, r %s\n", ls.name) + fmt.Fprintf(w, "\tvar y %s\n", rs.name) + // unsigned LHS + for _, c := range ls.u { + fmt.Fprintf(w, "\tx = %d\n", c) + for _, d := range rs.u { + fmt.Fprintf(w, "\ty = %d\n", d) + fmt.Fprintf(w, "\tr = x %s y\n", o.symbol) + want := ansU(c, d, ls.name, o.symbol) + fmt.Fprintf(w, "\tif r != %s {\n", want) + fmt.Fprintf(w, "\t\tt.Errorf(\"%d %s %d = %%d, want %s\", r)\n", c, o.symbol, d, want) + fmt.Fprintf(w, "\t}\n") + } + } + // signed LHS + for _, c := range ls.i { + fmt.Fprintf(w, "\tx = %d\n", c) + for _, d := range rs.u { + fmt.Fprintf(w, "\ty = %d\n", d) + fmt.Fprintf(w, "\tr = x %s y\n", o.symbol) + want := ansS(c, int64(d), ls.name, o.symbol) + fmt.Fprintf(w, "\tif r != %s {\n", want) + fmt.Fprintf(w, "\t\tt.Errorf(\"%d %s %d = %%d, want %s\", r)\n", c, o.symbol, d, want) + fmt.Fprintf(w, "\t}\n") + } + } + fmt.Fprintf(w, "}\n") + } + } + } + // gofmt result + b := w.Bytes() + src, err := format.Source(b) + if err != nil { + fmt.Printf("%s\n", b) + panic(err) + } + + // write to file + err = ioutil.WriteFile("../../constFold_test.go", src, 0666) + if err != nil { + log.Fatalf("can't write output: %v\n", err) + } +}