[Bug rtl-optimization/55342] [4.8/4.9 Regression] [LRA,x86] Non-optimal code for simple loop with LRA

[ysrumyan at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55342

--- Comment #11 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
Created attachment 30816
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30816&action=edit
test-case to reproduce

t1.c must be compiled on x86 with options:

-O2 -march=atom -mtune=atom -mfpmath=sse -m32