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03c8164849
Fixes #12411. Change-Id: I2202a754c7750e3b2119e3744362c98ca0d2433e Reviewed-on: https://go-review.googlesource.com/17818 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
25 lines
492 B
Go
25 lines
492 B
Go
// +build !386
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// run
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// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Issue 12411. Loss of AX during %.
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package main
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func main() {
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x := f(4)
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if x != 0 {
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println("BUG: x=", x)
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}
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}
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//go:noinline
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func f(x int) int {
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// AX was live on entry to one of the % code generations,
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// and the % code generation smashed it.
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return ((2 * x) % 3) % (2 % ((x << 2) ^ (x % 3)))
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}
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