[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 #15 from vries at gcc dot gnu.org 2012-04-12 16:25:28 UTC ---
Created attachment 27142
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27142
pr52734.2.patch

Another tentative patch. Also not precise, but a simpler approach.

Now testing.