[Bug c/52734] Incorrect optimization of uClibc sbrk()

[mikpe at it dot uu.se]

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

--- Comment #4 from Mikael Pettersson <mikpe at it dot uu.se> 2012-03-27 
07:53:52 UTC ---
Not x86-specific, gcc-4.7 fails on arm-linux-gnueabi and m68k-linux too.