Allow integer literals as addresses in instrumented builtins.

gcc/
	PR sanitizer/59029
	* gcc/asan.c (get_mem_refs_of_builtin_call): Allow
	integer literals as addresses in instrumented builtins.

gcc-testsuite/
	PR sanitizer/59029
	* c-c++-common/asan/pr59029.c: New test.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r204508

gcc/ChangeLog

+2013-11-07  Yury Gribov  <y.gribov@samsung.com>
+	    Jakub Jelinek  <jakub@redhat.com>
+
+	PR sanitizer/59029
+	* gcc/asan.c (get_mem_refs_of_builtin_call): Allow
+	integer literals as addresses in instrumented builtins.
+
 2013-11-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* config/aarch64/aarch64.c (aarch64_legitimize_reload_address):

gcc/asan.c

@@ -715,7 +715,7 @@ get_mem_refs_of_builtin_call (const gimple call,
 	   instrument_derefs.  */
 	if (TREE_CODE (dest) == ADDR_EXPR)
 	  dest = TREE_OPERAND (dest, 0);
-	else if (TREE_CODE (dest) == SSA_NAME)
+	else if (TREE_CODE (dest) == SSA_NAME || TREE_CODE (dest) == INTEGER_CST)
 	  dest = build2 (MEM_REF, TREE_TYPE (TREE_TYPE (dest)),
 			 dest, build_int_cst (TREE_TYPE (dest), 0));
 	else

gcc/testsuite/ChangeLog

+2013-11-07  Yury Gribov  <y.gribov@samsung.com>
+	    Jakub Jelinek  <jakub@redhat.com>
+
+	PR sanitizer/59029
+	* c-c++-common/asan/pr59029.c: New test.
+
 2013-11-07  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/59034

gcc/testsuite/c-c++-common/asan/pr59029.c

+/* { dg-do compile } */
+
+int
+foo ()
+{
+  return __sync_fetch_and_add ((int *) 0, 1);
+}