go/test/codegen/issue52635.go
Russ Cox 915c1839fe test/codegen: simplify asmcheck pattern matching
Separate patterns in asmcheck by spaces instead of commas.
Many patterns end in comma (like "MOV [$]123,") so separating
patterns by comma is not great; they're already quoted, so spaces are fine.

Also replace all tabs in the assembly lines with spaces before matching.
Finally, replace \$ or \\$ with [$] as the matching idiom.
The effect of all these is to make the patterns look like:

  	   // amd64:"BSFQ" "ORQ [$]256"

instead of the old:

  	   // amd64:"BSFQ","ORQ\t\\$256"

Update all tests as well.

Change-Id: Ia39febe5d7f67ba115846422789e11b185d5c807
Reviewed-on: https://go-review.googlesource.com/c/go/+/716060
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
2025-10-29 13:55:00 -07:00

53 lines
1 KiB
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.
// Test that optimized range memclr works with pointers to arrays.
// The clears get inlined, see https://github.com/golang/go/issues/56997
package codegen
type T struct {
a *[10]int
b [10]int
s []int
}
func (t *T) f() {
// amd64:-".*runtime.memclrNoHeapPointers"
// amd64:`MOVUPS X15,`
for i := range t.a {
t.a[i] = 0
}
// amd64:-".*runtime.memclrNoHeapPointers"
// amd64:`MOVUPS X15,`
for i := range *t.a {
t.a[i] = 0
}
// amd64:-".*runtime.memclrNoHeapPointers"
// amd64:`MOVUPS X15,`
for i := range t.a {
(*t.a)[i] = 0
}
// amd64:-".*runtime.memclrNoHeapPointers"
// amd64:`MOVUPS X15,`
for i := range *t.a {
(*t.a)[i] = 0
}
// amd64:-".*runtime.memclrNoHeapPointers"
// amd64:`MOVUPS X15,`
for i := range t.b {
t.b[i] = 0
}
// amd64:".*runtime.memclrNoHeapPointers"
for i := range t.s {
t.s[i] = 0
}
}