mirror of
https://github.com/golang/go
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cc16fb52e6
Before this CL, we could use the same register for both a temporary register and for moving a value in the output register out of the way. Fixes #71857 Change-Id: Iefbfd9d4139136174570d8aadf8a0fb391791ea9 Reviewed-on: https://go-review.googlesource.com/c/go/+/651221 Reviewed-by: David Chase <drchase@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@google.com>
30 lines
486 B
Go
30 lines
486 B
Go
// run
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// Copyright 2025 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 main
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import "sync/atomic"
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//go:noinline
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func f(p0, p1, p2, p3, p4, p5, p6, p7 *uint64, a *atomic.Uint64) {
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old := a.Or(0xaaa)
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*p0 = old
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*p1 = old
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*p2 = old
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*p3 = old
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*p4 = old
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*p5 = old
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*p6 = old
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*p7 = old
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}
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func main() {
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a := new(atomic.Uint64)
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p := new(uint64)
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f(p, p, p, p, p, p, p, p, a)
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}
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