Initial commit: Go 1.23 release state

test/codegen/alloc.go

@@ -0,0 +1,34 @@
+// 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.
+
+// These tests check that allocating a 0-size object does not
+// introduce a call to runtime.newobject.
+
+package codegen
+
+func zeroAllocNew1() *struct{} {
+	// 386:-`CALL\truntime\.newobject`
+	// amd64:-`CALL\truntime\.newobject`
+	// arm:-`CALL\truntime\.newobject`
+	// arm64:-`CALL\truntime\.newobject`
+	return new(struct{})
+}
+
+func zeroAllocNew2() *[0]int {
+	// 386:-`CALL\truntime\.newobject`
+	// amd64:-`CALL\truntime\.newobject`
+	// arm:-`CALL\truntime\.newobject`
+	// arm64:-`CALL\truntime\.newobject`
+	return new([0]int)
+}
+
+func zeroAllocSliceLit() []int {
+	// 386:-`CALL\truntime\.newobject`
+	// amd64:-`CALL\truntime\.newobject`
+	// arm:-`CALL\truntime\.newobject`
+	// arm64:-`CALL\truntime\.newobject`
+	return []int{}
+}