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8c8adffd53
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 #68594.
Fixes #68585.
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>
(cherry picked from commit 6f5d77454e)
Reviewed-on: https://go-review.googlesource.com/c/go/+/601195
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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