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Re: -O1 & -O2
On Thu, Jul 13, 2000 at 02:26:48PM -0700, Rob Emanuele wrote:
> If anyone could point me to where I can get a list of the
> optimizations that -O1, -O2, and -O3 turn on, I'd appreciate
> it.
The simplest approach is to look in toplev.c (find the line testing optimize >=
1) and then possibly in the machine dependent config/<machine>/<machine>.[ch]
OPTIMIZATION_OPTIONS macro which overrides the toplev definition (though
OPTIMIZATION_OPTIONS is not supposed to change the MI options).
Another approach is to look in the documentation of the -O switches.
--
Michael Meissner, Red Hat, Inc.
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