re PR sanitizer/65019 (Compare debug failure with -fsanitize=alignment,object-size,vptr -O3)

	PR sanitizer/65019
	* ubsan.c (ubsan_expand_objsize_ifn): Always return true.

	* g++.dg/ubsan/pr65019.C: New test.

From-SVN: r220641

gcc/ChangeLog

 2015-02-12  Jakub Jelinek  <jakub@redhat.com>
 
+	PR sanitizer/65019
+	* ubsan.c (ubsan_expand_objsize_ifn): Always return true.
+
 	PR tree-optimization/65014
 	* fold-const.c (fold_binary_loc): When creating {L,R}ROTATE_EXPR,
 	use original second operand of arg0 or arg1 instead of

gcc/testsuite/ChangeLog

 2015-02-12  Jakub Jelinek  <jakub@redhat.com>
 
+	PR sanitizer/65019
+	* g++.dg/ubsan/pr65019.C: New test.
+
 	PR tree-optimization/65014
 	* gcc.c-torture/compile/pr65014.c: New test.
 

gcc/testsuite/g++.dg/ubsan/pr65019.C

+// PR sanitizer/65019
+// { dg-do compile }
+// { dg-options "-fsanitize=alignment,object-size,vptr -std=c++11 -O2 -fcompare-debug" }
+
+struct A { };
+struct B { };
+struct C final {
+  C (const A &, int);
+  static B *foo (const A &, int = 1);
+  virtual ~C ();
+  void *c;
+};
+
+B *
+C::foo (const A &x, int y)
+{
+  C *d = new C (x, y);
+  if (d->c == nullptr)
+    delete d;
+}
+
+C::~C ()
+{
+}

gcc/ubsan.c

@@ -987,7 +987,7 @@ ubsan_expand_objsize_ifn (gimple_stmt_iterator *gsi)
   /* Get rid of the UBSAN_OBJECT_SIZE call from the IR.  */
   unlink_stmt_vdef (stmt);
   gsi_remove (&gsi_orig, true);
-  return gsi_end_p (*gsi);
+  return true;
 }
 
 /* Cached __ubsan_vptr_type_cache decl.  */