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Change-Id: Ia7a955833d761e08c1b8081fb29a2e6317de004c Reviewed-on: https://go-review.googlesource.com/c/go/+/760681 Auto-Submit: Keith Randall <khr@google.com> Reviewed-by: Junyang Shao <shaojunyang@google.com> Reviewed-by: Paul Murphy <paumurph@redhat.com> Reviewed-by: Keith Randall <khr@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
38 lines
1.4 KiB
Go
38 lines
1.4 KiB
Go
// asmcheck
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// Copyright 2018 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 allocating a 0-size object does not
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// introduce a call to runtime.newobject.
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package codegen
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func zeroAllocNew1() *struct{} {
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// 386:-`CALL runtime\.newobject` `LEAL runtime.zerobase`
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// amd64:-`CALL runtime\.newobject` `LEAQ runtime.zerobase`
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// arm:-`CALL runtime\.newobject` `MOVW [$]runtime.zerobase`
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// arm64:-`CALL runtime\.newobject` `MOVD [$]runtime.zerobase`
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// riscv64:-`CALL runtime\.newobject` `MOV [$]runtime.zerobase`
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return new(struct{})
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}
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func zeroAllocNew2() *[0]int {
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// 386:-`CALL runtime\.newobject` `LEAL runtime.zerobase`
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// amd64:-`CALL runtime\.newobject` `LEAQ runtime.zerobase`
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// arm:-`CALL runtime\.newobject` `MOVW [$]runtime.zerobase`
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// arm64:-`CALL runtime\.newobject` `MOVD [$]runtime.zerobase`
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// riscv64:-`CALL runtime\.newobject` `MOV [$]runtime.zerobase`
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return new([0]int)
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}
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func zeroAllocSliceLit() []int {
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// 386:-`CALL runtime\.newobject` `LEAL runtime.zerobase`
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// amd64:-`CALL runtime\.newobject` `LEAQ runtime.zerobase`
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// arm:-`CALL runtime\.newobject` `MOVW [$]runtime.zerobase`
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// arm64:-`CALL runtime\.newobject` `MOVD [$]runtime.zerobase`
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// riscv64:-`CALL runtime\.newobject` `MOV [$]runtime.zerobase`
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return []int{}
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}
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