[Bug sanitizer/78663] [7 Regression] Hundreds of asan failures on x86_64-apple-darwin10 at r243019

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78663

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Created attachment 40240
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40240&action=edit
Patch from Iain Sandoe

Results with the patch at
https://gcc.gnu.org/ml/gcc-testresults/2016-12/msg00469.html.