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-rw-r--r--test/codegen/issue52635.go36
1 files changed, 36 insertions, 0 deletions
diff --git a/test/codegen/issue52635.go b/test/codegen/issue52635.go
new file mode 100644
index 0000000..0e4d169
--- /dev/null
+++ b/test/codegen/issue52635.go
@@ -0,0 +1,36 @@
+// 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.
+
+package codegen
+
+type T struct {
+ a *[10]int
+ b [10]int
+}
+
+func (t *T) f() {
+ // amd64:".*runtime.memclrNoHeapPointers"
+ for i := range t.a {
+ t.a[i] = 0
+ }
+
+ // amd64:".*runtime.memclrNoHeapPointers"
+ for i := range *t.a {
+ t.a[i] = 0
+ }
+
+ // amd64:".*runtime.memclrNoHeapPointers"
+ for i := range t.a {
+ (*t.a)[i] = 0
+ }
+
+ // amd64:".*runtime.memclrNoHeapPointers"
+ for i := range *t.a {
+ (*t.a)[i] = 0
+ }
+}