From 0825475599d40c786c19c3449e22d2db66754456 Mon Sep 17 00:00:00 2001
From: Youlin Feng <fengyoulin@live.com>
Date: Mon, 18 Nov 2024 17:34:20 +0800
Subject: cmd/compile: do not treat OpLocalAddr as load in DSE

Fixes #70409
Fixes #47107

Change-Id: I82a66c46f6b76c68e156b5d937273b0316975d44
Reviewed-on: https://go-review.googlesource.com/c/go/+/629016
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
---
 test/codegen/issue70409.go | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 test/codegen/issue70409.go

(limited to 'test/codegen')

diff --git a/test/codegen/issue70409.go b/test/codegen/issue70409.go
new file mode 100644
index 0000000000..bfb4560582
--- /dev/null
+++ b/test/codegen/issue70409.go
@@ -0,0 +1,20 @@
+// asmcheck -gcflags=-d=ssa/check/on
+
+// Copyright 2024 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
+
+// amd64:-"MOVQ"
+func foo(v uint64) (b [8]byte) {
+	b[0] = byte(v)
+	b[1] = byte(v >> 8)
+	b[2] = byte(v >> 16)
+	b[3] = byte(v >> 24)
+	b[4] = byte(v >> 32)
+	b[5] = byte(v >> 40)
+	b[6] = byte(v >> 48)
+	b[7] = byte(v >> 56)
+	return b
+}
-- 
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