sync ops on ptrs, was breaking libgomp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47960 91177308-0d34-0410-b5e6-96231b3b80d8

test/CFrontend/2008-03-05-syncPtr.c

@@ -0,0 +1,25 @@
+// RUN: %llvmgcc %s -S -emit-llvm -o /dev/null 
+
+int* foo(int** a, int* b, int* c) {
+return __sync_val_compare_and_swap (a, b, c);
+}
+
+int foo2(int** a, int* b, int* c) {
+return __sync_bool_compare_and_swap (a, b, c);
+}
+
+int* foo3(int** a, int b) {
+  return __sync_fetch_and_add (a, b);
+}
+
+int* foo4(int** a, int b) {
+  return __sync_fetch_and_sub (a, b);
+}
+
+int* foo5(int** a, int* b) {
+  return __sync_lock_test_and_set (a, b);
+}
+
+int* foo6(int** a, int*** b) {
+  return __sync_lock_test_and_set (a, b);
+}