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Re: [Patch] Do not rerun loop optimisation by default.

To: Toon Moene <toon at moene dot indiv dot nluug dot nl>
Subject: Re: [Patch] Do not rerun loop optimisation by default.
From: Richard Henderson <rth at redhat dot com>
Date: Tue, 11 Sep 2001 00:56:24 -0700
Cc: gcc-patches at gcc dot gnu dot org
References: <3B9A720A.390A49FB@moene.indiv.nluug.nl> <20010910110413.A9074@redhat.com> <3B9D365D.54A8184A@moene.indiv.nluug.nl> <3B9D9FC5.4BC92E83@moene.indiv.nluug.nl>

On Tue, Sep 11, 2001 at 07:23:17AM +0200, Toon Moene wrote:
> 1. Why a single symbol_ref isn't "const", while a symbol_ref+const is.
> 
> 2. Whether this actually matters in the way I mention above.

No, it doesn't.  symbol_ref == (const (plus symbol_ref (const_int 0))).
What it does mean is that there are bugs in the simplification code.

r~

References:
- [Patch] Do not rerun loop optimisation by default.
  - From: Toon Moene
- Re: [Patch] Do not rerun loop optimisation by default.
  - From: Richard Henderson
- Re: [Patch] Do not rerun loop optimisation by default.
  - From: Toon Moene
- Re: [Patch] Do not rerun loop optimisation by default.
  - From: Toon Moene

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