"Daniel Berlin" <[EMAIL PROTECTED]> writes: >> 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.
That benchmark isn't that relevant, as it's using -O3, as is typical for SPEC benchmarks. This discussion is talking about -O2, not -O3. The proposed change (i.e., having -O2 imply -fwrapv) would not affect -O3 benchmark scores.
