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Re: [PATCH] Allow DCE of const or pure calls

From: Eric Botcazou <ebotcazou at libertysurf dot fr>
To: "Andrew Pinski" <pinskia at gmail dot com>
Cc: gcc-patches at gcc dot gnu dot org, "Jakub Jelinek" <jakub at redhat dot com>, "Mark Mitchell" <mark at codesourcery dot com>
Date: Mon, 5 Nov 2007 09:24:29 +0100
Subject: Re: [PATCH] Allow DCE of const or pure calls
References: <20071102200613.GK5451@devserv.devel.redhat.com> <20071105002036.GP5451@devserv.devel.redhat.com> <de8d50360711041632j383262e1wff46d16d24de3c08@mail.gmail.com>

> So I think this is fixing a regression from 3.4 on a RTL level
> optimization.

Note that, with this reasoning, every optimization that has been moved from 
RTL to Tree level is the source of a regression from 3.4.  But users cannot 
tell the difference between Tree level and RTL level optimizations, and DCE
of const or pure calls should already happen at the Tree level.

-- 
Eric Botcazou

References:
- [PATCH] Allow DCE of const or pure calls
  - From: Jakub Jelinek
- Re: [PATCH] Allow DCE of const or pure calls
  - From: Jakub Jelinek
- Re: [PATCH] Allow DCE of const or pure calls
  - From: Andrew Pinski

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