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Re: [trans-mem] fix memory optimization bug with loops

From: Richard Henderson <rth at redhat dot com>
To: Aldy Hernandez <aldyh at redhat dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Fri, 09 Oct 2009 09:02:34 -0700
Subject: Re: [trans-mem] fix memory optimization bug with loops
References: <20091008213740.GA22360@redhat.com>

On 10/08/2009 02:37 PM, Aldy Hernandez wrote:

Upon fixing it, I noticed that the
read-after-write optimization was not being performed when a basic block
could be its own predecessor (i.e. a loop).

This is surely a special case of any back edge to a dominating block, correct?

Everything else is obviously ok.

r~

Follow-Ups:
- Re: [trans-mem] fix memory optimization bug with loops
  - From: Aldy Hernandez

References:
- [trans-mem] fix memory optimization bug with loops
  - From: Aldy Hernandez

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