runtime: disable stack allocation test when instrumentation is on

Should fix some asan build failures.

Change-Id: Ic0a816b56a1a278aa0ad541aea962f9fea7b10fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/674696
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

diff --git a/src/runtime/runtime_test.go b/src/runtime/runtime_test.go
index 0f2998b35bd8a5aff77f9a18265b0b455a73056b..6c628f8903cb8bc3009ae1a06a1f7a60d3415c2c 100644 (file)
--- a/src/runtime/runtime_test.go
+++ b/src/runtime/runtime_test.go
@@ -7,7 +7,10 @@ package runtime_test
 import (
        "flag"
        "fmt"
+       "internal/asan"
        "internal/cpu"
+       "internal/msan"
+       "internal/race"
        "internal/runtime/atomic"
        "internal/testenv"
        "io"
@@ -329,6 +332,9 @@ func TestAppendGrowthHeap(t *testing.T) {
 }
 
 func TestAppendGrowthStack(t *testing.T) {
+       if race.Enabled || asan.Enabled || msan.Enabled {
+               t.Skip("instrumentation breaks this optimization")
+       }
        var x []int64
        check := func(want int) {
                if cap(x) != want {
@@ -338,7 +344,7 @@ func TestAppendGrowthStack(t *testing.T) {
 
        check(0)
        want := 32 / 8 // 32 is the default for cmd/compile/internal/base.DebugFlags.VariableMakeThreshold
-       if Raceenabled || testenv.OptimizationOff() {
+       if testenv.OptimizationOff() {
                want = 1
        }
        for i := 1; i <= 100; i++ {