On 12/31/06, Daniel Berlin <[EMAIL PROTECTED]> wrote:
...
> I added -fwrapv to the Dec30 run of SPEC at
> http://www.suse.de/~gcctest/SPEC/CFP/sb-vangelis-head-64/recent.html
> and
> http://www.suse.de/~gcctest/SPEC/CINT/sb-vangelis-head-64/recent.html
Note the distinct drop in performance across almost all the benchmarks
on Dec 30, including popular programs like bzip2 and gzip.
Also, this is only on x86 -
other targets that benefit more from software pipelinine/modulo scheduling
may suffer even more than x86, especially on the FP side.
--
#pragma ident "Seongbae Park, compiler, http://seongbae.blogspot.com";
