mirror of
https://github.com/golang/go
synced 2024-11-26 19:41:19 -07:00
254948a50e
Leftover values that have been replaced can cause problems in later passes (within expandCalls). For example, a struct select that itself yields a struct will have a problematic rewrite, if the chance is presented. Updates #40724. Change-Id: I1b445c47c301c3705f7fc0a9d39f1f5c84f4e190 Reviewed-on: https://go-review.googlesource.com/c/go/+/306869 Trust: David Chase <drchase@google.com> Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Than McIntosh <thanm@google.com>
37 lines
676 B
Go
37 lines
676 B
Go
// run
|
|
|
|
// Copyright 2021 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
|
|
|
|
type patchlist struct {
|
|
head, tail uint32
|
|
}
|
|
|
|
type frag struct {
|
|
i uint32
|
|
out patchlist
|
|
}
|
|
|
|
//go:noinline
|
|
//go:registerparams
|
|
func patch(l patchlist, i uint32) {
|
|
}
|
|
|
|
//go:noinline
|
|
//go:registerparams
|
|
func badbad(f1, f2 frag) frag {
|
|
// concat of failure is failure
|
|
if f1.i == 0 || f2.i == 0 { // internal compiler error: 'badbad': incompatible OpArgIntReg [4]: v42 and v26
|
|
return frag{}
|
|
}
|
|
patch(f1.out, f2.i)
|
|
return frag{f1.i, f2.out}
|
|
}
|
|
|
|
func main() {
|
|
badbad(frag{i: 2}, frag{i: 3})
|
|
}
|