[Bug libmudflap/53952] [4.8 Regression] FAIL: libmudflap.c++/pass55-frag.cxx ( -O[123]) execution test

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53952

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-29 07:57:12 UTC ---
I'd say it is the right thing, just should be done at a different spot, instead
of doing it for everything just check it for MEM_REF.  I think only MEM_REF can
have ADDR_EXPR of a non-TREE_ADDRESSABLE DECL_P as argument, look e.g. at
mem_ref_refers_to_non_mem_p in expr.c (which checks more than that), or
opf_non_addressable and opf_not_non_addressable handling in
tree-ssa-operands.c.
So, MEM_REF with ADDR_EXPR of a non-TREE_ADDRESSABLE DECL_P IMHO doesn't need
to be instrumented (seems I should modify asan/tsan too).