1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/pr40496.C b/gcc/testsuite/g++.dg/opt/pr40496.C
new file mode 100644
index 000000000..961f067af
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr40496.C
@@ -0,0 +1,19 @@
+// { dg-do compile }
+// { dg-options "-O2 -fprefetch-loop-arrays -msse2" { target i?86-*-* x86_64-*-* } }
+// { dg-require-effective-target sse2 { target i?86-*-* x86_64-*-* } }
+
+struct DOMStringHandle
+{
+  unsigned int fLength;
+  int fRefCount;
+};
+static void *freeListPtr;
+void foo(DOMStringHandle *dsg)
+{
+  int i;
+  for (i = 1; i < 1023; i++)
+    {
+      *(void **) &dsg[i] = freeListPtr;
+      freeListPtr = &dsg[i];
+    }
+}