--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tm/memopt-9.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,28 @@
+/* { dg-do compile } */
+/* { dg-options "-fgnu-tm -O -fdump-tree-tmmark" } */
+
+extern int something(void) __attribute__((transaction_safe));
+extern void *malloc (__SIZE_TYPE__) __attribute__((malloc,transaction_safe));
+
+struct large { int foo[500]; };
+
+int f()
+{
+  int *p;
+  struct large *lp;
+
+  __transaction_atomic {
+    p = malloc (sizeof (*p) * 100);
+    lp = malloc (sizeof (*lp) * 100);
+
+    /* No instrumentation necessary; P and LP are transaction local.  */
+    p[5] = 123;
+    lp->foo[66] = 123;
+
+    if (something())
+      __transaction_cancel;
+  }
+  return p[5];
+}
+
+/* { dg-final { scan-tree-dump-times "ITM_WU" 0 "tmmark" } } */