[Aldor-l] GCC / ICC differences
pip88nl at gmail.com
pip88nl at gmail.com
Sun Aug 17 06:25:58 EDT 2008
On Sat, Aug 16, 2008 at 10:53:23PM -0500, Gabriel Dos Reis wrote:
> What optimization flags did you use for both compilers?
>
> -- Gaby
For this test: none, but looking at the ICC asm output shows me that ICC
does actually optimise (it uses the 2-byte xorl %eax, %eax instead of the
5-byte mov $0, %eax in return 0, for example). I passed -fwrapv to GCC
just to be sure, but it didn't blow up there, anyway. I don't know how to
force ICC not to optimise, yet.
Pippijn
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