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[release-branch.go1.22] cmd/compile: mark pointer to noalg type as noalg

When the compiler writes PtrToThis field of noalg type, it generates
its pointer type. Mark them as noalg to prevent put them in typelinks.

Fixes 

Change-Id: Icbc3b18bc866f9138c7648e42dd500a80326f72b
Reviewed-on: https://go-review.googlesource.com/c/go/+/567335
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Auto-Submit: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
(cherry picked from commit b8c76effd9)
Reviewed-on: https://go-review.googlesource.com/c/go/+/593876
Reviewed-by: David Chase <drchase@google.com>
This commit is contained in:
zuojunwei.1024
2024-02-27 19:14:00 +08:00
committed by Joedian Reid
parent dfe4dbf8c0
commit ceaf26ecce
4 changed files with 41 additions and 0 deletions
src/cmd/compile/internal/types
test/fixedbugs

@ -657,6 +657,9 @@ func NewPtr(elem *Type) *Type {
if elem.HasShape() {
t.SetHasShape(true)
}
if elem.Noalg() {
t.SetNoalg(true)
}
return t
}

@ -0,0 +1,12 @@
// Copyright 2024 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 a
var s any
//go:noinline
func F() {
s = new([4]int32)
}

@ -0,0 +1,19 @@
// Copyright 2024 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 main
import (
"./a"
"reflect"
)
var s = []rune{0, 1, 2, 3}
func main() {
m := map[any]int{}
k := reflect.New(reflect.ArrayOf(4, reflect.TypeOf(int32(0)))).Elem().Interface()
m[k] = 1
a.F()
}

@ -0,0 +1,7 @@
// rundir
// Copyright 2024 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 ignored