|PII/PPro specific code generation email@example.com (Bruce Dawson) (1998-09-18)|
|Re: PII/PPro specific code generation firstname.lastname@example.org (Manoj Plakal) (1998-09-22)|
|Re: PII/PPro specific code generation email@example.com (Jason Merrill) (1998-10-04)|
|From:||Jason Merrill <firstname.lastname@example.org>|
|Date:||4 Oct 1998 01:15:49 -0400|
|Organization:||Cygnus Solutions, Sunnyvale, CA|
|Keywords:||C, architecture, optimize|
>>>>> Manoj Plakal <email@example.com> writes:
> You could take a look at PGCC from the Pentium Compiler Group
> at www.gcc.ml.org. This is being used by the EGCS people
> (GCC2 offshoot, www.cygnus.com/egcs).
To clarify, PGCC is based some work Intel did a while back to implement
Pentium optimizations in GCC. Unfortunately, that work was not suitable
for inclusion in the mainline compiler, for two reasons:
1) It was buggy; it was done mainly as a proof of concept, and some
optimizations produced bad code. I believe these problems have been
fixed by the PGCC folks.
2) It was insufficiently general, and broke optimizations for other
The PGCC optimizations are slowly being cleaned up and added to EGCS.
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