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Re: possible gcse failure: not able to eliminate redundant loads

From: Richard Henderson <rth at redhat dot com>
To: Daniel Berlin <dberlin at dberlin dot org>
Cc: Dale Johannesen <dalej at apple dot com>, "Sanjiv Kumar Gupta, Noida" <sanjivg at noida dot hcltech dot com>, gcc at gcc dot gnu dot org
Date: Thu, 12 Dec 2002 13:00:10 -0800
Subject: Re: possible gcse failure: not able to eliminate redundant loads
References: <5BF74486-0D57-11D7-AD6E-000393D76DAA@apple.com> <071040D0-0D74-11D7-AE57-000393575BCC@dberlin.org> <20021212200530.GA23940@redhat.com> <Pine.LNX.4.50.0212121526140.18406-100000@dberlin.org>

On Thu, Dec 12, 2002 at 03:26:44PM -0500, Daniel Berlin wrote:
> >  Not for this
> > simple case.  If these memories are known to not alias, then they
> > should be hoisted out of the loop by load_mems.
> Maybe the load, but not the store.

Both.  We hoist values read-write when we can.


r~

Follow-Ups:
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: David Edelsohn

References:
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: Dale Johannesen
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: Daniel Berlin
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: Richard Henderson
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: Daniel Berlin

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