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fb017c60bc
We currently rewrite (TESTQ (MOVQconst [c] x)) into (TESTQconst [c] x) and (TESTQconst [-1] x) into (TESTQ x x) if x is a (MOVQconst [-1]) we will be stuck in the endless rewrite loop. Don't perform the rewrite in such cases. Fixes #25006 Change-Id: I77f561ba2605fc104f1e5d5c57f32e9d67a2c000 Reviewed-on: https://go-review.googlesource.com/108879 Run-TryBot: Ilya Tocar <ilya.tocar@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
31 lines
400 B
Go
31 lines
400 B
Go
// compile
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// Copyright 2018 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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package p
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func spin() {
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var i int
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var b bool
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switch 1 {
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case 0:
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i = 1
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}
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switch 1 {
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case i:
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default:
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i = 1
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b = !b && (b && !b) && b
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}
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switch false {
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case false:
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i = 3 + -i
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switch 0 {
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case 1 - i:
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}
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}
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}
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