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28 lines
728 B
Go
28 lines
728 B
Go
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// 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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