mirror of
https://github.com/golang/go
synced 2024-11-26 22:21:27 -07:00
4f083c7dcf
The openDeferRecord always insert vardef/varlive pairs into the entry block, it may destroy the mem chain when LECall's args are writing into the same block. So create a new block before that happens. Fixes #49282 Change-Id: Ibda6c4a45d960dd412a641f5e02276f663c80785 Reviewed-on: https://go-review.googlesource.com/c/go/+/361410 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Go Bot <gobot@golang.org> Trust: Alberto Donizetti <alb.donizetti@gmail.com> Trust: Than McIntosh <thanm@google.com> Reviewed-by: David Chase <drchase@google.com>
45 lines
639 B
Go
45 lines
639 B
Go
// compile
|
|
|
|
// 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 p
|
|
|
|
//go:noinline
|
|
func g(d uintptr, a, m []int, s struct {
|
|
a, b, c, d, e int
|
|
}, u uint) {
|
|
_ = a
|
|
_ = m
|
|
_ = s
|
|
func() {
|
|
for i := 0; i < 5; i++ {
|
|
_ = a
|
|
_ = m
|
|
_, _ = s, s
|
|
}
|
|
}()
|
|
}
|
|
|
|
var One float64 = 1.0
|
|
|
|
func f(d uintptr) {
|
|
var a, m []int
|
|
var s struct {
|
|
a, b, c, d, e int
|
|
}
|
|
|
|
g(d, a, m, s, uint(One)) // Uint of not-a-constant inserts a conditional, necessary to bug
|
|
|
|
defer func() uint {
|
|
return 0
|
|
}()
|
|
}
|
|
|
|
var d uintptr
|
|
|
|
func h() {
|
|
f(d)
|
|
}
|