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0ae8468b20
Remove dynamic checks for atomic instructions for ARM64 targets that support LSE extension. For #66131 Change-Id: I0ec1b183a3f4ea4c8a537430646e6bc4b4f64271 Reviewed-on: https://go-review.googlesource.com/c/go/+/569536 Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Fannie Zhang <Fannie.Zhang@arm.com> Reviewed-by: Shu-Chun Weng <scw@google.com>
28 lines
728 B
Go
28 lines
728 B
Go
// asmcheck
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// Copyright 2024 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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// These tests check that atomic instructions without dynamic checks are
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// generated for architectures that support them
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package codegen
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import "sync/atomic"
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type Counter struct {
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count int32
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}
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func (c *Counter) Increment() {
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// Check that ARm64 v8.0 has both atomic instruction (LDADDALW) and a dynamic check
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// (for arm64HasATOMICS), while ARM64 v8.1 has only atomic and no dynamic check.
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// arm64/v8.0:"LDADDALW"
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// arm64/v8.1:"LDADDALW"
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// arm64/v8.0:".*arm64HasATOMICS"
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// arm64/v8.1:-".*arm64HasATOMICS"
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atomic.AddInt32(&c.count, 1)
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}
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