Fix a test-case for Darwin.

2017-10-11  Martin Liska  <mliska@suse.cz>

	* c-c++-common/ubsan/ptr-overflow-sanitization-1.c: Scan
	optimized dump rather than assembly.

From-SVN: r253636

gcc/testsuite/ChangeLog

+2017-10-11  Martin Liska  <mliska@suse.cz>
+
+	* c-c++-common/ubsan/ptr-overflow-sanitization-1.c: Scan
+	optimized dump rather than assembly.
+
 2017-10-11  Nathan Sidwell  <nathan@acm.org>
 
 	* g++.dg/cpp/string-3.C: Fix dg-final.

gcc/testsuite/c-c++-common/ubsan/ptr-overflow-sanitization-1.c

-/* { dg-require-effective-target lp64 } */
-/* { dg-options "-O -fsanitize=pointer-overflow" } */
+/* { dg-options "-O -fsanitize=pointer-overflow -fdump-tree-optimized" } */
 /* { dg-skip-if "" { *-*-* } "-flto" } */
 
 #define SMAX   __PTRDIFF_MAX__
@@ -76,5 +75,4 @@ void negative_to_negative (char *ptr)
   p2 += 5;
 }
 
-
-/* { dg-final { scan-assembler-times "call\\s+__ubsan_handle_pointer_overflow" 17 } } */
+/* { dg-final { scan-tree-dump-times "__ubsan_handle_pointer_overflow" 17 "optimized" } } */