42 lines
816 B
Go
42 lines
816 B
Go
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// asmcheck
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// Copyright 2022 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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// Test that optimized range memclr works with pointers to arrays.
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// The clears get inlined, see https://github.com/golang/go/issues/56997
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package codegen
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type T struct {
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a *[10]int
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b [10]int
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}
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func (t *T) f() {
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// amd64:-".*runtime.memclrNoHeapPointers"
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// amd64:"DUFFZERO"
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for i := range t.a {
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t.a[i] = 0
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}
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// amd64:-".*runtime.memclrNoHeapPointers"
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// amd64:"DUFFZERO"
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for i := range *t.a {
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t.a[i] = 0
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}
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// amd64:-".*runtime.memclrNoHeapPointers"
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// amd64:"DUFFZERO"
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for i := range t.a {
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(*t.a)[i] = 0
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}
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// amd64:-".*runtime.memclrNoHeapPointers"
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// amd64:"DUFFZERO"
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for i := range *t.a {
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(*t.a)[i] = 0
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}
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}
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