Initial commit: Go 1.23 release state

test/codegen/issue31618.go

@@ -0,0 +1,22 @@
+// asmcheck
+
+// 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.
+
+package codegen
+
+// Make sure we remove both inline marks in the following code.
+// Both +5 and +6 should map to real instructions, which can
+// be used as inline marks instead of explicit nops.
+func f(x int) int {
+	// amd64:-"XCHGL"
+	x = g(x) + 5
+	// amd64:-"XCHGL"
+	x = g(x) + 6
+	return x
+}
+
+func g(x int) int {
+	return x >> 3
+}