[Bug sanitizer/69147] [5 Regression] Several hundred asan failures with 5.3.1 on x86_64-apple-darwin15

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69147

--- Comment #17 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Results with the third patch at

https://gcc.gnu.org/ml/gcc-testresults/2016-01/msg01115.html

It looks good.