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go/test/fixedbugs/issue8613.go
Brad Fitzpatrick 758447cdc9 test/fixedbugs: add test for divide by zero being optimized away
This only tests amd64 because it's currently broken on non-SSA
backends.

Fixes #8613

Change-Id: I6bc501c81c395e533bb9c7335789750e0c6b7a8f
Reviewed-on: https://go-review.googlesource.com/21325
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-03-31 06:12:38 +00:00

40 lines
625 B
Go

// +build amd64
// run
// 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.
package main
var out int
var zero int
func main() {
wantPanic("test1", func() {
out = 1 / zero
})
wantPanic("test2", func() {
_ = 1 / zero
})
wantPanic("test3", func() {
v := 0
_ = 1 / v
})
wantPanic("test4", func() { divby(0) })
}
func wantPanic(test string, fn func()) {
defer func() {
if e := recover(); e == nil {
panic(test + ": expected panic")
}
}()
fn()
}
//go:noinline
func divby(v int) {
_ = 1 / v
}