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author | Russ Cox <rsc@golang.org> | 2011-09-02 15:11:28 -0400 |
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committer | Russ Cox <rsc@golang.org> | 2011-09-02 15:11:28 -0400 |
commit | c45c0c0c1d7d35639612f0f278ec8e34958b0be2 (patch) | |
tree | 084d99c5d5fae4d14ac299c702b03bb5fedfae4f /test/escape3.go | |
parent | cd6f319a7679e4664978af269001980e7bee4979 (diff) | |
download | go-c45c0c0c1d7d35639612f0f278ec8e34958b0be2.tar.gz go-c45c0c0c1d7d35639612f0f278ec8e34958b0be2.zip |
gc: zero stack-allocated slice backing arrays
Fixes Han-Wen's termite bug.
R=lvd
CC=golang-dev
https://golang.org/cl/4977052
Diffstat (limited to 'test/escape3.go')
-rw-r--r-- | test/escape3.go | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/escape3.go b/test/escape3.go new file mode 100644 index 0000000000..fc2d6ebbe4 --- /dev/null +++ b/test/escape3.go @@ -0,0 +1,36 @@ +// $G $D/$F.go && $L $F.$A && ./$A.out + +// Copyright 2011 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. + +// Test run-time behavior of escape analysis-related optimizations. + +package main + +func main() { + test1() +} + +func test1() { + check1(0) + check1(1) + check1(2) +} + +type T1 struct { + X, Y, Z int +} + +func f() int { + return 1 +} + +func check1(pass int) T1 { + v := []T1{{X: f(), Z: f()}} + if v[0].Y != 0 { + panic("nonzero init") + } + v[0].Y = pass + return v[0] +} |