mirror of
https://github.com/golang/go
synced 2024-11-24 14:20:13 -07:00
c1050a8e54
Emit &runtime.zerobase instead of a call to newobject for allocations of zero sized objects in walk.go. Fixes #29446 Change-Id: I11b67981d55009726a17c2e582c12ce0c258682e Reviewed-on: https://go-review.googlesource.com/c/155840 Run-TryBot: Iskander Sharipov <quasilyte@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Keith Randall <khr@golang.org>
35 lines
902 B
Go
35 lines
902 B
Go
// asmcheck
|
|
|
|
// Copyright 2018 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 allocating a 0-size object does not
|
|
// introduce a call to runtime.newobject.
|
|
|
|
package codegen
|
|
|
|
func zeroAllocNew1() *struct{} {
|
|
// 386:-`CALL\truntime\.newobject`
|
|
// amd64:-`CALL\truntime\.newobject`
|
|
// arm:-`CALL\truntime\.newobject`
|
|
// arm64:-`CALL\truntime\.newobject`
|
|
return new(struct{})
|
|
}
|
|
|
|
func zeroAllocNew2() *[0]int {
|
|
// 386:-`CALL\truntime\.newobject`
|
|
// amd64:-`CALL\truntime\.newobject`
|
|
// arm:-`CALL\truntime\.newobject`
|
|
// arm64:-`CALL\truntime\.newobject`
|
|
return new([0]int)
|
|
}
|
|
|
|
func zeroAllocSliceLit() []int {
|
|
// 386:-`CALL\truntime\.newobject`
|
|
// amd64:-`CALL\truntime\.newobject`
|
|
// arm:-`CALL\truntime\.newobject`
|
|
// arm64:-`CALL\truntime\.newobject`
|
|
return []int{}
|
|
}
|