mirror of
https://github.com/golang/go
synced 2024-11-23 17:50:06 -07:00
6485e8f503
Partial overlaps can only happen for strict sub-pieces of larger arrays. That's a much stronger condition than the current optimization rules. Update #54467 Change-Id: I11e539b71099e50175f37ee78fddf69283f83ee5 Reviewed-on: https://go-review.googlesource.com/c/go/+/433056 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
60 lines
949 B
Go
60 lines
949 B
Go
// asmcheck
|
|
|
|
// Copyright 2022 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.
|
|
|
|
package codegen
|
|
|
|
func f1(x *[4]int, y *[4]int) {
|
|
// amd64:".*memmove"
|
|
*x = *y
|
|
}
|
|
func f2(x *[4]int, y [4]int) {
|
|
// amd64:-".*memmove"
|
|
*x = y
|
|
}
|
|
func f3(x *[4]int, y *[4]int) {
|
|
// amd64:-".*memmove"
|
|
t := *y
|
|
// amd64:-".*memmove"
|
|
*x = t
|
|
}
|
|
func f4(x *[4]int, y [4]int) {
|
|
// amd64:-".*memmove"
|
|
t := y
|
|
// amd64:-".*memmove"
|
|
*x = t
|
|
}
|
|
|
|
type T struct {
|
|
a [4]int
|
|
}
|
|
|
|
func f5(x, y *T) {
|
|
// amd64:-".*memmove"
|
|
x.a = y.a
|
|
}
|
|
func f6(x *T, y T) {
|
|
// amd64:-".*memmove"
|
|
x.a = y.a
|
|
}
|
|
func f7(x *T, y *[4]int) {
|
|
// amd64:-".*memmove"
|
|
x.a = *y
|
|
}
|
|
func f8(x *[4]int, y *T) {
|
|
// amd64:-".*memmove"
|
|
*x = y.a
|
|
}
|
|
|
|
func f9(x [][4]int, y [][4]int, i, j int) {
|
|
// amd64:-".*memmove"
|
|
x[i] = y[j]
|
|
}
|
|
|
|
func f10() []byte {
|
|
// amd64:-".*memmove"
|
|
return []byte("aReasonablyBigTestString")
|
|
}
|