Initial commit: Go 1.23 release state

test/fixedbugs/issue29943.go

@@ -0,0 +1,28 @@
+// run
+
+// Copyright 2019 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.
+
+// Code was miscompiled on ppc64le due to incorrect zero-extension
+// that was CSE'd.
+
+package main
+
+//go:noinline
+func g(i uint64) uint64 {
+	return uint64(uint32(i))
+}
+
+var sink uint64
+
+func main() {
+	for i := uint64(0); i < 1; i++ {
+		i32 := int32(i - 1)
+		sink = uint64((uint32(i32) << 1) ^ uint32((i32 >> 31)))
+		x := g(uint64(i32))
+		if x != uint64(uint32(i32)) {
+			panic(x)
+		}
+	}
+}