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: disable subregs?

From: Tupshin Harper <tupshin at tupshin dot com>
To: Jan Hubicka <jh at suse dot cz>
Cc: gcc at gcc dot gnu dot org
Date: Sun, 23 Feb 2003 19:47:02 -0800
Subject: Re: disable subregs?
References: <3E58B93B.30505@tupshin.com> <20030223163527.GA29195@kam.mff.cuni.cz>

Jan Hubicka wrote:

What would be the easiest/best way of disabling all partial register and multi register usage when targetting a new CPU?

See REGNO_MODE_OK and CANNOT_CHANGE_MODE_CLASS_P macroas.

Honza

TIA

-Tupshin

Thanks, this looks like it will help, though nowhere in the gcc sources is there "CANNOT_CHANGE_MODE_CLASS_P". Did you mean "CANNOT_CHANGE_MODE_CLASS"?

References:
- disable subregs?
  - From: Tupshin Harper
- Re: disable subregs?
  - From: Jan Hubicka

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