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Re: [PATCH] fold-const.c use of BRANCH_COST

From: Jan Hubicka <jh at suse dot cz>
To: David Edelsohn <dje at watson dot ibm dot com>
Cc: Richard Henderson <rth at redhat dot com>, gcc-patches at gcc dot gnu dot org
Date: Fri, 11 Apr 2003 16:47:10 +0200
Subject: Re: [PATCH] fold-const.c use of BRANCH_COST
References: <20030411050839.GE4524@redhat.com> <200304111441.KAA26950@makai.watson.ibm.com>

> >>>>> Richard Henderson writes:
> 
> Richard> Nothing, except that it'd be better to go at them in a more
> Richard> organized sort of way than a basketful of random defines.
> 
> 	We can add the knobs for both uses of BRANCH_COST in fold-const.c
> in this pass, if you want.  BRANCH_COST isn't actually used in that many
> parts of GCC.

I would like to see this happen.  Definitly i386 CPUs are other where
BRANCH_COST choice doesn't match.  It would be nice to have separate
knobs for when optimizing for size or speed (decided using
maybe_hot_bb_p inside ifcvt.c)

Honza
> 
> David

Follow-Ups:
- Re: [PATCH] fold-const.c use of BRANCH_COST
  - From: David Edelsohn

References:
- Re: [PATCH] fold-const.c use of BRANCH_COST
  - From: Richard Henderson
- Re: [PATCH] fold-const.c use of BRANCH_COST
  - From: David Edelsohn

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