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Re: [PATCH] Make CSE path following use the CFG

From: Eric Christopher <echristo at apple dot com>
To: Steven Bosscher <stevenb dot gcc at gmail dot com>
Cc: Eric Botcazou <ebotcazou at libertysurf dot fr>, gcc-patches at gcc dot gnu dot org, "Sayle, Roger" <roger at eyesopen dot com>
Date: Wed, 13 Dec 2006 12:32:29 -0800
Subject: Re: [PATCH] Make CSE path following use the CFG
References: <200612070012.39638.steven@gcc.gnu.org> <200612111634.35842.ebotcazou@libertysurf.fr> <571f6b510612111048h21a6f2a7h41273895e2db5b90@mail.gmail.com> <200612121230.41729.ebotcazou@libertysurf.fr> <571f6b510612131223u7b1ddcdfkbb5a30b37001991b@mail.gmail.com>

On Dec 13, 2006, at 12:23 PM, Steven Bosscher wrote:

On 12/12/06, Eric Botcazou <ebotcazou@libertysurf.fr> wrote:
Confirmed, testcase attached, compile p.adb at -O -mtune=pentium.
Yup, got it.

and the latter doesn't trap because of the new REG_EQUAL note.
I didn't even realize that this could happen.

What do you think of the attached patch?

+ trap, we may have made it non-throwing now. For example

I think you mean non-trapping, not non-throwing yes? :)

-eric

References:
- [PATCH] Make CSE path following use the CFG
  - From: Steven Bosscher
- Re: [PATCH] Make CSE path following use the CFG
  - From: Eric Botcazou
- Re: [PATCH] Make CSE path following use the CFG
  - From: Steven Bosscher
- Re: [PATCH] Make CSE path following use the CFG
  - From: Eric Botcazou
- Re: [PATCH] Make CSE path following use the CFG
  - From: Steven Bosscher

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