This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: Understanding IRA

From: Jeff Law <law at redhat dot com>
To: Dave Hudson <gcc at blueteddy dot net>
Cc: Ian Bolton <bolton at IceraSemi dot com>, Vladimir Makarov <vmakarov at redhat dot com>, gcc at gcc dot gnu dot org
Date: Tue, 10 Nov 2009 10:21:50 -0700
Subject: Re: Understanding IRA
References: <4D60B0700D1DB54A8C0C6E9BE69163700C1F254A@EXCHANGEVS.IceraSemi.local> <4D60B0700D1DB54A8C0C6E9BE69163700C1F257C@EXCHANGEVS.IceraSemi.local> <1257512006.6620.28.camel@dhudson-ubuntult>

On 11/06/09 05:53, Dave Hudson wrote:

  the most
critical thing was to ensure that REGNO_REG_CLASS was returning a
minimal class correctly.

I believe that's been documented as the right thing to do for about 15 years :-) So, yes, you definitely want REGNO_REG_CLASS to return the smallest class to which a register belongs.

Jeff

Follow-Ups:
- RE: Understanding IRA
  - From: Ian Bolton

References:
- RE: Understanding IRA
  - From: Ian Bolton
- RE: Understanding IRA
  - From: Ian Bolton
- RE: Understanding IRA
  - From: Dave Hudson

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]