go source for verification 2026-05-22

test/codegen/issue25378.go

@@ -0,0 +1,22 @@
+// asmcheck
+
+// Copyright 2018 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
+
+var wsp = [256]bool{
+	' ':  true,
+	'\t': true,
+	'\n': true,
+	'\r': true,
+}
+
+func zeroExtArgByte(ch [2]byte) bool {
+	return wsp[ch[0]] // amd64:-"MOVBLZX ..,.."
+}
+
+func zeroExtArgUint16(ch [2]uint16) bool {
+	return wsp[ch[0]] // amd64:-"MOVWLZX ..,.."
+}