Initial commit: Go 1.23 release state

test/fixedbugs/issue19137.go

@@ -0,0 +1,51 @@
+// compile
+
+// Copyright 2017 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.
+
+// Issue 19137: folding address into load/store causes
+// odd offset on ARM64.
+
+package p
+
+type T struct {
+	p *int
+	a [2]byte
+	b [6]byte // not 4-byte aligned
+}
+
+func f(b [6]byte) T {
+	var x [1000]int // a large stack frame
+	_ = x
+	return T{b: b}
+}
+
+// Arg symbol's base address may be not at an aligned offset to
+// SP. Folding arg's address into load/store may cause odd offset.
+func move(a, b [20]byte) [20]byte {
+	var x [1000]int // a large stack frame
+	_ = x
+	return b // b is not 8-byte aligned to SP
+}
+func zero() ([20]byte, [20]byte) {
+	var x [1000]int // a large stack frame
+	_ = x
+	return [20]byte{}, [20]byte{} // the second return value is not 8-byte aligned to SP
+}
+
+// Issue 21992: unaligned offset between 256 and 504 and handled
+// incorrectly.
+type T2 struct {
+	a [257]byte
+	// fields below are not 8-, 4-, 2-byte aligned
+	b [8]byte
+	c [4]byte
+	d [2]byte
+}
+
+func f2(x *T2) {
+	x.b = [8]byte{}
+	x.c = [4]byte{}
+	x.d = [2]byte{}
+}