1 files changed, 41 insertions, 0 deletions
diff --git a/test/codegen/issue52635.go b/test/codegen/issue52635.go
new file mode 100644
index 0000000..9b08cad
--- /dev/null
+++ b/test/codegen/issue52635.go
@@ -0,0 +1,41 @@
+// asmcheck
+
+// Copyright 2022 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.
+
+// Test that optimized range memclr works with pointers to arrays.
+// The clears get inlined, see https://github.com/golang/go/issues/56997
+
+package codegen
+
+type T struct {
+	a *[10]int
+	b [10]int
+}
+
+func (t *T) f() {
+	// amd64:-".*runtime.memclrNoHeapPointers"
+	// amd64:"DUFFZERO"
+	for i := range t.a {
+		t.a[i] = 0
+	}
+
+	// amd64:-".*runtime.memclrNoHeapPointers"
+	// amd64:"DUFFZERO"
+	for i := range *t.a {
+		t.a[i] = 0
+	}
+
+	// amd64:-".*runtime.memclrNoHeapPointers"
+	// amd64:"DUFFZERO"
+	for i := range t.a {
+		(*t.a)[i] = 0
+	}
+
+	// amd64:-".*runtime.memclrNoHeapPointers"
+	// amd64:"DUFFZERO"
+	for i := range *t.a {
+		(*t.a)[i] = 0
+	}
+}