// asmcheck // Copyright 2024 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // These tests check that atomic instructions without dynamic checks are // generated for architectures that support them package codegen import "sync/atomic" type Counter struct { count int32 } func (c *Counter) Increment() { // Check that ARm64 v8.0 has both atomic instruction (LDADDALW) and a dynamic check // (for arm64HasATOMICS), while ARM64 v8.1 has only atomic and no dynamic check. // arm64/v8.0:"LDADDALW" // arm64/v8.1:"LDADDALW" // arm64/v8.0:".*arm64HasATOMICS" // arm64/v8.1:-".*arm64HasATOMICS" atomic.AddInt32(&c.count, 1) }