http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56330
--- Comment #8 from Dodji Seketeli <dodji at gcc dot gnu.org> 2013-02-16 09:33:01 UTC --- Author: dodji Date: Sat Feb 16 09:32:56 2013 New Revision: 196102 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196102 Log: [asan] Fix for PR asan/56330 gcc/ * asan.c (get_mem_refs_of_builtin_call): White space and style cleanup. (instrument_mem_region_access): Do not forget to always put instrumentation of the of 'base' and 'base + len' in a "if (len != 0) statement, even for cases where either 'base' or 'base + len' are not instrumented -- because they have been previously instrumented. Simplify the logic by putting all the statements instrument 'base + len' inside a sequence, and then insert that sequence right before the current insertion point. Then, to instrument 'base + len', just get an iterator on that statement. And do not forget to update the pointer to iterator the function received as argument. gcc/testsuite/ * c-c++-common/asan/no-redundant-instrumentation-4.c: New test file. * c-c++-common/asan/no-redundant-instrumentation-5.c: Likewise. * c-c++-common/asan/no-redundant-instrumentation-6.c: Likewise. * c-c++-common/asan/no-redundant-instrumentation-7.c: Likewise. * c-c++-common/asan/no-redundant-instrumentation-8.c: Likewise. * c-c++-common/asan/pr56330.c: Likewise. * c-c++-common/asan/no-redundant-instrumentation-1.c (test1): Ensure the size argument of __builtin_memcpy is a constant. Added: trunk/gcc/testsuite/c-c++-common/asan/no-redundant-instrumentation-4.c trunk/gcc/testsuite/c-c++-common/asan/no-redundant-instrumentation-5.c trunk/gcc/testsuite/c-c++-common/asan/no-redundant-instrumentation-6.c trunk/gcc/testsuite/c-c++-common/asan/no-redundant-instrumentation-7.c trunk/gcc/testsuite/c-c++-common/asan/no-redundant-instrumentation-8.c trunk/gcc/testsuite/c-c++-common/asan/pr56330.c Modified: trunk/gcc/ChangeLog trunk/gcc/asan.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/c-c++-common/asan/no-redundant-instrumentation-1.c
