[Bug sanitizer/58994] asan.exp regressions on x86_64 darwin at -m64 but not -m32 at r204372

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58994
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Note that the tests pass on x86_64-apple-darwin10 for both -m32 and -m64.