Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 39 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/g++.dg/tm/pr47530-2.C b/gcc-4.9/gcc/testsuite/g++.dg/tm/pr47530-2.C
new file mode 100644
index 000000000..bcfdbe948
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/tm/pr47530-2.C
@@ -0,0 +1,39 @@
+// { dg-do compile }
+// { dg-options "-fgnu-tm -O2 -fno-inline -fdump-tree-tmedge" }
+
+class RBTree
+{
+    struct RBNode
+    {
+      RBNode* next;
+    };
+
+  public:
+    RBNode* sentinel;
+    __attribute__((transaction_safe)) bool lookup();
+};
+
+bool RBTree::lookup()
+{
+  RBNode* x = sentinel;
+  while (x)
+    x = x->next;
+  return false;
+}
+
+
+RBTree* SET;
+
+void bench_test()
+{
+  __transaction_atomic { 
+      SET->lookup();
+    }
+}
+
+// There should be two calls to commitTransaction.
+// The one in the uninstrumented code path is a tail call.
+// The one in the instrumented code path is not.
+// { dg-final { scan-tree-dump-times "ITM_commitTransaction.*tail call" 1 "tmedge" } }
+
+// { dg-final { cleanup-tree-dump "tmedge" } }