go source for verification 2026-05-22

test/codegen/generics.go

@@ -0,0 +1,40 @@
+// asmcheck
+
+// Copyright 2025 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
+
+import "cmp"
+
+func isNaN[T cmp.Ordered](x T) bool {
+	return x != x
+}
+
+func compare[T cmp.Ordered](x, y T) int {
+	// amd64:-"TESTB"
+	// arm64:-"MOVB"
+	xNaN := isNaN(x)
+	yNaN := isNaN(y)
+	if xNaN {
+		if yNaN {
+			return 0
+		}
+		return -1
+	}
+	if yNaN {
+		return +1
+	}
+	if x < y {
+		return -1
+	}
+	if x > y {
+		return +1
+	}
+	return 0
+}
+
+func usesCompare(a, b int) int {
+	return compare(a, b)
+}