[Bug tree-optimization/52734] [4.7/4.8 Regression] Incorrect optimization of uClibc sbrk()

[vries at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52734

--- Comment #11 from vries at gcc dot gnu.org 2012-03-27 17:04:54 UTC ---
> Created attachment 27014 [details]
> Tentative patch

Bootstrapped and reg-tested on x86_64, no issues found.