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Re: Patch: hoist more loop invariants

From: Eric Botcazou <ebotcazou at libertysurf dot fr>
To: Geoff Keating <geoffk at geoffk dot org>
Cc: gcc-patches at gcc dot gnu dot org
Date: Tue, 1 Apr 2003 00:27:12 +0200
Subject: Re: Patch: hoist more loop invariants
References: <58F875B2-49F3-11D7-84F9-000393D76DAA@apple.com> <200303311744.56761.ebotcazou@libertysurf.fr> <jm3cl3jjob.fsf@desire.geoffk.org>

> Isn't there a macro for this?
>
> @findex AVOID_CCMODE_COPIES
> @item AVOID_CCMODE_COPIES
> Define this macro if the compiler should avoid copies to/from
> @code{CCmode} registers.  You should only define this macro if support for
> copying to/from @code{CCmode} is incomplete.
> @end table

Sure, but can_copy_p is more general (see gcse.c:compute_can_copy).

-- 
Eric Botcazou

References:
- Re: Patch: hoist more loop invariants
  - From: Eric Botcazou
- Re: Patch: hoist more loop invariants
  - From: Geoff Keating

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