Files
golang.go/test/fixedbugs/issue77815.go
Francisco Ferraz 244b156e67 cmd/compile: fix internal compiler error: bad write barrier type
This change fixes an issue where the compiler panics with 'bad
write barrier type' for zero-sized arrays. The loops in
storeTypeScalars and storeTypePtrs erroneously processed
zero-sized arrays causing invalid operations. This ignores them.

Fixes #77815

Change-Id: I0db1b924fc63a75f1bed7488e2dc54d2de5dc0b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/749380
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2026-02-27 20:20:22 -08:00

21 lines
387 B
Go

// compile
// Copyright 2026 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
type S struct {
a [4]struct{}
f chan int
}
func f(p *S) {
var s S
// Memory write that requires a write barrier should work
// with structs having zero-sized arrays of non-zero elements.
*p = s
}