[Bug tree-optimization/53726] [4.8 Regression] aes test performance drop for eembc_2_0_peak_32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53726

--- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> 2012-06-20 14:43:11 
UTC ---
(In reply to comment #11)
> (In reply to comment #9)
> > (In reply to comment #3)
> > > I added executable testcase. Command line to compile
> > > 
> > > gcc -g -ansi -O3 -ffast-math -msse2 -mfpmath=sse -m32 -static  
> > > -march=corei7
> > > -mtune=corei7   test.c m.c
> > > 
> > 
> > Please compare results without -static.
> 
> Same results.  memcpy ends up here:
> 
> 
> this seems to be sysdeps/i386/i586/memcpy.S

Your libc.so doesn't support IFUNC optimization.