[Bug tree-optimization/56522] [4.8 Regression] Bytemark ASSIGNMENT 9% / 11% slower

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Mar 8 15:29:00 GMT 2013


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56522

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-*-*

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-08 15:28:29 UTC ---
I don't see any substantial differences in code-generation (register allocation
and some basic-block order differences appear), and I cannot reproduce a
slowdown.

Flags as you cited:

./xgcc -B. -o t t.c -O3 -march=corei7 -fomit-frame-pointer -funroll-loops
-ffast-math -static



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