cmd/compile: fix sign extension of paired 32-bit loads on arm64

Fixes #71759

Change-Id: Iab05294ac933cc9972949158d3fe2bdc3073df5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/649895
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/test/codegen/memcombine.go b/test/codegen/memcombine.go
index 9345391b61..c5744bf8d7 100644
--- a/test/codegen/memcombine.go
+++ b/test/codegen/memcombine.go
@@ -982,6 +982,10 @@ func dwloadI64(p *struct{ a, b int64 }) int64 {
 	return p.a + p.b
 }
 func dwloadI32(p *struct{ a, b int32 }) int32 {
+	// arm64:"LDPSW\t"
+	return p.a + p.b
+}
+func dwloadU32(p *struct{ a, b uint32 }) uint32 {
 	// arm64:"LDPW\t"
 	return p.a + p.b
 }