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cmd/compile: make backingArrayPtrLen to return typecheck-ed nodes

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Fixes #61908

Change-Id: Ief8e3a6c42c0644c9f71ebef5f28a294cd7c153f
Reviewed-on: https://go-review.googlesource.com/c/go/+/517936
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
This commit is contained in:
Cuong Manh Le 2023-08-10 01:51:17 +07:00 committed by Gopher Robot
parent 58447d757c
commit b2a56b7053
2 changed files with 18 additions and 0 deletions
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2
src/cmd/compile/internal/walk/walk.go
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@ -275,8 +275,10 @@ func backingArrayPtrLen(n ir.Node) (ptr, length ir.Node) {
} else {
ptr.SetType(n.Type().Elem().PtrTo())
}
ptr.SetTypecheck(1)
length = ir.NewUnaryExpr(base.Pos, ir.OLEN, n)
length.SetType(types.Types[types.TINT])
length.SetTypecheck(1)
return ptr, length
}

16
test/fixedbugs/issue61908.go Normal file
View File

@ -0,0 +1,16 @@
// compile
// Copyright 2023 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
func f(p []byte) int {
switch "" < string(p) {
case true:
return 0
default:
return 1
}
}