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Re: Pre-inline optimization, version 3

From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
To: jh at suse dot cz
Cc: botcazou at adacore dot com, gcc-patches at gcc dot gnu dot org, hubicka at ucw dot cz, ian at airs dot com, richard dot guenther at gmail dot com, roger at eyesopen dot com, schwab at suse dot de
Date: Tue, 16 Jan 2007 09:10:10 EST
Subject: Re: Pre-inline optimization, version 3
References: <84fc9c000701050225v5ff11aemcf5d7c6fa3dedc1d@mail.gmail.com> <20070105110642.GA16786@atrey.karlin.mff.cuni.cz> <20070106195503.GD4865@kam.mff.cuni.cz> <20070110165952.GF10075@atrey.karlin.mff.cuni.cz> <20070111012831.GR16721@kam.mff.cuni.cz> <jeslegfmu6.fsf@sykes.suse.de> <20070116003739.GE10318@kam.mff.cuni.cz> <m3fyaboj16.fsf@gossamer.airs.com> <20070116095922.GB9679@kam.mff.cuni.cz> <10701161313.AA28954@vlsi1.ultra.nyu.edu> <20070116134824.GA16605@kam.mff.cuni.cz>

> WHat I saw in the file producing segfault, was VAR_DECL pointing to
> ARRAY_REF via the language specific pointer 't'. The ARRAY_REF further
> pointed to SSA_NAMES that was however already optimized out.  

Sounds like you're talking about DECL_RENAMED_OBJECT.  If so, probably
the best approach is to add a VAR_DECL case in ada/trans.c:gnat_gimplify_expr
which just clears it.

Eric (Botcazou): can the new language-independent field DECL_VALUE_EXPR
be used for this now?

Follow-Ups:
- Re: Pre-inline optimization, version 3
  - From: Eric Botcazou

References:
- Re: Pre-inline optimization
  - From: Richard Guenther
- Re: Pre-inline optimization
  - From: Jan Hubicka
- Pre-inline optimization, version 2
  - From: Jan Hubicka
- [ping] Pre-inline optimization, version 2
  - From: Jan Hubicka
- Pre-inline optimization, version 3
  - From: Jan Hubicka
- Re: Pre-inline optimization, version 3
  - From: Andreas Schwab
- Re: Pre-inline optimization, version 3
  - From: Jan Hubicka
- Re: Pre-inline optimization, version 3
  - From: Ian Lance Taylor
- Re: Pre-inline optimization, version 3
  - From: Jan Hubicka
- Re: Pre-inline optimization, version 3
  - From: Richard Kenner
- Re: Pre-inline optimization, version 3
  - From: Jan Hubicka

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