From 6d0e3242eb296922995c6335de4d5c8bcd88728a Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Fri, 31 Aug 2012 15:43:27 -0400
Subject: [PATCH] test: restore nigel's bug451 as bug452.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6497066
---
 test/fixedbugs/bug452.go | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 test/fixedbugs/bug452.go

diff --git a/test/fixedbugs/bug452.go b/test/fixedbugs/bug452.go
new file mode 100644
index 0000000000..d2e4a0b44a
--- /dev/null
+++ b/test/fixedbugs/bug452.go
@@ -0,0 +1,38 @@
+// run
+
+// Copyright 2012 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.
+
+// Issue 3835: 8g tries to optimize arithmetic involving integer
+// constants, but can run out of registers in the process.
+
+package main
+
+var a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z, A, B, C, D, E, F, G int
+
+func foo() int {
+	return a + 1 + b + 2 + c + 3 + d + 4 + e + 5 + f + 6 + g + 7 + h + 8 + i + 9 + j + 10 +
+		k + 1 + l + 2 + m + 3 + n + 4 + o + 5 + p + 6 + q + 7 + r + 8 + s + 9 + t + 10 +
+		u + 1 + v + 2 + w + 3 + x + 4 + y + 5 + z + 6 + A + 7 + B + 8 + C + 9 + D + 10 +
+		E + 1 + F + 2 + G + 3
+}
+
+func bar() int8 {
+	var (
+		W int16
+		X int32
+		Y int32
+		Z int32
+	)
+	return int8(W+int16(X+3)+3) * int8(Y+3+Z*3)
+}
+
+func main() {
+	if foo() == 0 {
+		panic("foo")
+	}
+	if bar() == 0 {
+		panic("bar")
+	}
+}
-- 
2.48.1