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Re: Use simplify_replace_rtx rather than wrap_constant

From: Paolo Bonzini <bonzini at gnu dot org>
To: gcc-patches at gcc dot gnu dot org, rdsandiford at googlemail dot com
Date: Wed, 30 Sep 2009 15:21:23 +0200
Subject: Re: Use simplify_replace_rtx rather than wrap_constant
Newsgroups: gmane.comp.gcc.patches
References: <87ljk1sr4c.fsf@firetop.home>

On 09/26/2009 04:44 PM, Richard Sandiford wrote:

+/* Replace all occurrences of OLD_RTX in X with FN (DATA).  Treat FN as
+   copy_rtx if it is null.  Canonicalize and simplify the result.  */

Richard, this is a great patch. The only objection is, I would pass X to FN too. This way, if we have to build something out of X we can avoid copying it unconditionally.

Paolo

Follow-Ups:
- Re: Use simplify_replace_rtx rather than wrap_constant
  - From: Richard Sandiford

References:
- Use simplify_replace_rtx rather than wrap_constant
  - From: Richard Sandiford

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