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Re: Faster compilation speed
- From: Mike Stump <mrs at apple dot com>
- To: Aldy Hernandez <aldyh at redhat dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Mon, 12 Aug 2002 16:05:38 -0700
- Subject: Re: Faster compilation speed
On Friday, August 9, 2002, at 04:05 PM, Aldy Hernandez wrote:
I assume you have already looked at the horrendity of the code
presently generated by -O0.
Yes. I am familiar with codegen at -O0.
Just a wild guess, but the same people that are used to a compiler that
is 36x faster than gcc for development?
It's pretty unusable as it is. Who would
really want to use gcc under the influence of "worse than -O0"?
Apparently there are some, surprising as that is.
I don't seek to make code any harder to debug (I've seen no compelling
proof that this would make the compile go faster). I think leaving in
the requirement that -O0 be debug friendly is a good idea.
Off the top of my head, if you insist on this approach, at least
guarantee that generated code is no worse to debug. That is the only
reason *I* use -O0, to debug.