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authorYoulin Feng <fengyoulin@live.com>2024-11-18 17:34:20 +0800
committerKeith Randall <khr@golang.org>2025-02-04 12:52:01 -0800
commit0825475599d40c786c19c3449e22d2db66754456 (patch)
treea68dc7687c0ba1b92296d1d019a799e3dd155f09 /test/codegen
parent5cb5437b6daee8971be0bd393535e263333ef311 (diff)
downloadgo-0825475599d40c786c19c3449e22d2db66754456.tar.xz
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>
Diffstat (limited to 'test/codegen')
-rw-r--r--test/codegen/issue70409.go20
1 files changed, 20 insertions, 0 deletions
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
+}