cmd/compile: make backingArrayPtrLen to return typecheck-ed nodes
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>
diff --git a/src/cmd/compile/internal/walk/walk.go b/src/cmd/compile/internal/walk/walk.go
index 8e4aa98..21cccaa 100644
--- a/src/cmd/compile/internal/walk/walk.go
+++ b/src/cmd/compile/internal/walk/walk.go
@@ -275,8 +275,10 @@
} 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
}
diff --git a/test/fixedbugs/issue61908.go b/test/fixedbugs/issue61908.go
new file mode 100644
index 0000000..f5d3bce
--- /dev/null
+++ b/test/fixedbugs/issue61908.go
@@ -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
+ }
+}
