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6f5d77454e
The problem was caused by faulty handling of unSSA-able operations on zero-sized data in expand calls, but there is no point to operations on zero-sized data. This CL adds a simplify step to the first place in SSA where all values are processed and replaces anything producing a 0-sized struct/array with the corresponding Struct/Array Make0 operation (of the appropriate type). I attempted not generating them in ssagen, but that was a larger change, and also had bugs. This is simple and obvious. The only question is whether it would be worthwhile to do it earlier (in numberlines or phielem). Fixes #65808. Change-Id: I0a596b3d272798015e7bb6b1a20411241759fe0e Reviewed-on: https://go-review.googlesource.com/c/go/+/568258 Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
31 lines
562 B
Go
31 lines
562 B
Go
// compile
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// Copyright 2024 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.package main
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package main
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type Stringer interface {
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String() string
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}
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type (
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stringer struct{}
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stringers [2]stringer
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foo struct {
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stringers
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}
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)
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func (stringer) String() string { return "" }
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func toString(s Stringer) string { return s.String() }
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func (v stringers) toStrings() []string {
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return []string{toString(v[0]), toString(v[1])}
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}
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func main() {
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_ = stringers{}
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}
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