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cmd/compile: add test for 42753

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This issue was already fixed at tip. Just adding the test that
failed on 1.14/1.15.

Update #42753

Change-Id: I00d13ade476b9c17190d762d7fdcb30cf6c83954
Reviewed-on: https://go-review.googlesource.com/c/go/+/272029
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
This commit is contained in:
Keith Randall 2020-11-20 13:59:29 -08:00
parent f7342596da
commit 9ea6364a5e
1 changed files with 13 additions and 0 deletions
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13
test/fixedbugs/issue42753.go Normal file
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@ -0,0 +1,13 @@
// compile -d=ssa/check/on
// Copyright 2020 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
func f() uint32 {
s := "\x01"
x := -int32(s[0])
return uint32(x) & 0x7fffffff
}