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Re: [PATCH] Fix PR47559

From: Zdenek Dvorak <rakdver at kam dot mff dot cuni dot cz>
To: Richard Guenther <rguenther at suse dot de>
Cc: gcc-patches at gcc dot gnu dot org
Date: Tue, 1 Feb 2011 17:24:36 +0100
Subject: Re: [PATCH] Fix PR47559
References: <alpine.LNX.2.00.1102011414590.17230@zhemvz.fhfr.qr> <20110201134245.GA17215@kam.mff.cuni.cz> <alpine.LNX.2.00.1102011447400.17230@zhemvz.fhfr.qr> <alpine.LNX.2.00.1102011715480.17230@zhemvz.fhfr.qr>

Hi,

> Committed as rev. 169487.  That leaves us with the correctness issues
> that we eliminate stores to global memory from endless loops.  w/o
> non-call exceptions we optimize the testcase to while (1);

what correctness issues?  If the loop is endless, eliminating the stores
preserves the semantics,

Zdenek

Follow-Ups:
- Re: [PATCH] Fix PR47559
  - From: Richard Guenther

References:
- [PATCH] Fix PR47559
  - From: Richard Guenther
- Re: [PATCH] Fix PR47559
  - From: Zdenek Dvorak
- Re: [PATCH] Fix PR47559
  - From: Richard Guenther
- Re: [PATCH] Fix PR47559
  - From: Richard Guenther

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