GCC-4.5.0 comparison with previous releases and LLVM-2.7 on SPEC2000 for x86/x86_64

[Xinliang David Li]

On Sat, Nov 13, 2010 at 2:39 PM, Paolo Bonzini <bonzini@gnu.org> wrote:
> On 11/13/2010 10:08 PM, Xinliang David Li wrote:
>>
>> Though gcc leads LLVM in performance overrall, there are a couple of
>> benchmarks gcc is worse: vpr and crafty (64bit and 32bit), parser and
>> twolf (32bit), vortex (64bit).  This needs to be triaged.   gcc
>> miscompiles gcc and eon in 32bit -- is there a bug tracking the
>> problem?
>
> Have you tried -ffast-math or -mfpmath=sse for eon?
>

-ffast-math is used on eon.

David

> Paolo
>