r220784 - in /trunk/gcc: ChangeLog testsuite/Ch...

[mpolacek@gcc.gnu.org]

Author: mpolacek
Date: Wed Feb 18 09:46:59 2015
New Revision: 220784

URL: https://gcc.gnu.org/viewcvs?rev=220784&root=gcc&view=rev
Log:
	PR sanitizer/65081
	* ubsan.c (OBJSZ_MAX_OFFSET): Define.
	(ubsan_expand_objsize_ifn): Don't emit run-time check if the offset
	is in range [-16K, -1].  Don't issue run-time error if
	(ptr > ptr + offset).

	* c-c++-common/ubsan/pr65081.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/ubsan/pr65081.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/ubsan.c