Mail Archives: djgpp/1997/01/07/19:39:14
On Mon, 6 Jan 1997, Benjamin D Chambers wrote:
[..]
> Of course it is. I have yet to see a compiler that really stacks up to
> gcc - this doesn't need pointing out :)
[..]
somewhat offtopic, but.. the IRIX 5.3 IDO C compiler (32-bit) running on
an R5000 (32-bit CPU with some 64-bit instructions) is about 10% faster
than GCC; the IRIX 6.3 IDO C compiler (64-bit) running on an R10000 (pure
64-bit machine; 64-bit OS) is about 30% faster than GCC;
i did a dumb test to check the above -- compile the time-dishonored
Dhrystone benchmark. for GCC I used
gcc -O10 -static -mcpu=r4000 -mips3 ...
(but there's no difference between -O2, -O3, and -O10, gcc-2.7.2) for IRIX
I used
cc -O2 -mips3 ...
note that the IRIX IDO has a faster mode (-O3) but it's kind of
complicated (you have to deal with these things called ucode object files)
and I don't know how to invoke its magic..
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