Initial commit: Go 1.23 release state

test/codegen/clobberdeadreg.go

@@ -0,0 +1,33 @@
+// asmcheck -gcflags=-clobberdeadreg
+
+//go:build amd64
+
+// Copyright 2021 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
+
+type S struct {
+	a, b, c, d, e, f int
+}
+
+func F(a, b, c int, d S) {
+	// -2401018187971961171 is 0xdeaddeaddeaddead
+	// amd64:`MOVQ\t\$-2401018187971961171, AX`, `MOVQ\t\$-2401018187971961171, BX`, `MOVQ\t\$-2401018187971961171, CX`
+	// amd64:`MOVQ\t\$-2401018187971961171, DX`, `MOVQ\t\$-2401018187971961171, SI`, `MOVQ\t\$-2401018187971961171, DI`
+	// amd64:`MOVQ\t\$-2401018187971961171, R8`, `MOVQ\t\$-2401018187971961171, R9`, `MOVQ\t\$-2401018187971961171, R10`
+	// amd64:`MOVQ\t\$-2401018187971961171, R11`, `MOVQ\t\$-2401018187971961171, R12`, `MOVQ\t\$-2401018187971961171, R13`
+	// amd64:-`MOVQ\t\$-2401018187971961171, BP` // frame pointer is not clobbered
+	StackArgsCall([10]int{a, b, c})
+	// amd64:`MOVQ\t\$-2401018187971961171, R12`, `MOVQ\t\$-2401018187971961171, R13`, `MOVQ\t\$-2401018187971961171, DX`
+	// amd64:-`MOVQ\t\$-2401018187971961171, AX`, -`MOVQ\t\$-2401018187971961171, R11` // register args are not clobbered
+	RegArgsCall(a, b, c, d)
+}
+
+//go:noinline
+func StackArgsCall([10]int) {}
+
+//go:noinline
+//go:registerparams
+func RegArgsCall(int, int, int, S) {}