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Re: Loop optimizer issues
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>
- Cc: Geoff Keating <geoffk at geoffk dot org>, Diego Novillo <dnovillo at redhat dot com>, Richard Henderson <rth at redhat dot com>, Jason Merrill <jason at redhat dot com>, Jan Hubicka <jh at suse dot cz>, Daniel Berlin <dberlin at dberlin dot org>, pop at gauvain dot u-strasbg dot fr, gcc at gcc dot gnu dot org
- Date: Wed, 02 Jul 2003 17:12:14 -0400
- Subject: Re: Loop optimizer issues
>>>>> Zdenek Dvorak writes:
>> > just for sure -- nobody will protest if I drop handling of libcalls
>> > in new loop optimizer? This definitely should not be neccesary to handle
>> > on rtl level.
>>
>> How do you plan to handle ports where multiplication or addition
>> requires a libcall?
Zdenek> in no special way. The optimizations done on ast level would then have
Zdenek> higher priority for optimizing them when possible.
Does "new loop optimizer" refer to a revision to the RTL loop
optimizer or a re-write of the loop optimizer in the Tree-SSA
infrastructure? LIBCALLs should not be present in GIMPLE, should they?
David