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Re: [PATCH,rs6000] fix legitimization of TImode/TFmode addresses

From: Nathan Froyd <froydnj at codesourcery dot com>
To: Peter Bergner <bergner at vnet dot ibm dot com>
Cc: David Edelsohn <dje at watson dot ibm dot com>, gcc-patches at gcc dot gnu dot org
Date: Tue, 22 Jan 2008 08:10:02 -0800
Subject: Re: [PATCH,rs6000] fix legitimization of TImode/TFmode addresses
References: <20080107193324.GK32605@codesourcery.com> <200801071938.m07JctaD037948@makai.watson.ibm.com> <1201017373.20111.18.camel@otta>

On Tue, Jan 22, 2008 at 09:56:13AM -0600, Peter Bergner wrote:
> >  	* config/rs6000/rs6000.c (rs6000_legitimize_address): Check to
> > 	ensure that we can address an entire TImode or TFmode quantity.
> > 	Don't generate reg+reg addressing for TImode or TFmode quantities.
> 
> If we're preventing [reg + reg] addressing for TImode and TFmode modes,
> then we should prevent using it for TDmode too.

Would it be more appropriate, instead of checking a number of modes and
hoping we remembered all the right ones, to disallow [reg+reg] if
GET_MODE_SIZE > 8?

-Nathan

Follow-Ups:
- Re: [PATCH,rs6000] fix legitimization of TImode/TFmode addresses
  - From: Peter Bergner

References:
- [PATCH,rs6000] fix legitimization of TImode/TFmode addresses
  - From: Nathan Froyd
- Re: [PATCH,rs6000] fix legitimization of TImode/TFmode addresses
  - From: David Edelsohn
- Re: [PATCH,rs6000] fix legitimization of TImode/TFmode addresses
  - From: Peter Bergner

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