This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

RE: Benchmarks gcc 3.0.4 (soon 3.1) vs. Intel C++ 6.0


<<I asked RedHat's Richard Henderson about which options I should use for
getting the fastest code from gcc; he only suggested -O2. In fact, he wasn't
real hot on -O3 (which I used) because he thought it might slow code down
through bloat.
>>

-O3 is often slower than -O2 in our experience particularly in Ada, where
it is routine to properly specify explicit inlining for appropriate subprograms


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]