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Re: [PATCH] rtlopt branch merge part 9 -- loop unrolling&peeling
> On Sat, Feb 08, 2003 at 06:30:55PM +0100, Zdenek Dvorak wrote:
> > * cse.c (count_reg_usage): Fix handling of REG_EQUAL notes.
> > * Makefile.in (loop-unroll.o): New.
> > * cfgloop.h (UAP_PEEL, UAP_UNROLL, UAP_UNROLL_ALL): New.
> > (unroll_and_peel_loops): Declare.
> > * alias.c (init_alias_analysis): Flag_unroll_loops renamed to
> > flag_old_unroll_loops.
> > * loop.c (loop_invariant_p): Ditto.
> > * unroll.c (unroll_loop): Flag_unroll_all_loops renamed to
> > flag_old_unroll_all_loops.
> > * flags.h (flag_unroll_loops): Renamed to flag_old_unroll_loops.
> > (flag_unroll_all_loops): Renamed to flag_old_unroll_all_loops.
> > * params.def (PARAM_MAX_UNROLLED_INSNS): Default value changed.
> > (PARAM_MAX_AVERAGE_UNROLLED_INSNS, PARAM_MAX_UNROLL_TIMES,
> > PARAM_MAX_PEELED_INSNS, PARAM_MAX_PEEL_TIMES,
> > PARAM_MAX_COMPLETELY_PEELED_INSNS, PARAM_MAX_COMPLETELY_PEEL_TIMES,
> > PARAM_MAX_ONCE_PEELED_INSNS): New.
> > * toplev.h (flag_old_unroll_loops, flag_old_unroll_all_loops): New.
> > (flag_unroll_loops, flag_unroll_all_loops): Used for new unroller
> > instead of old one.
> > (flag_peel_loops): New.
> > (lang_independent_options): The new flags added.
> > (rest_of_compilation): Call new unroller.
> > (process_options): Setup flags for coexistence of old and new unroller.
> > * doc/invoke.texi: Document new options.
> > * doc/passes.texi: Document new unroller pass.
Would be also possible to consider the webizer pass? It is needed to
cleanup after new loop optimizer as it don't do induction variable
Ie when we generate sequence
We need webizer to get it into
Or do we want different sollution for the problem? (like special
purpose IV splitting pass like old unroller had)
Zdenek, I also think you should write something for changes.html and
new.html as it is quite important change (we should have all new options