This is the mail archive of the gcc-bugs@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]

Re: c/859: sparc-specific pessimal code for simple loop

To: Jim Wilson <wilson at cygnus dot com>
Subject: Re: c/859: sparc-specific pessimal code for simple loop
From: Richard Henderson <rth at redhat dot com>
Date: Wed, 22 Nov 2000 14:15:36 -0800
Cc: gcc-bugs at gcc dot gnu dot org
References: <20001121213559.26387.qmail@sourceware.cygnus.com> <20001121230119.A19367@redhat.com> <200011222100.NAA17480@wilson.cygnus.com>

On Wed, Nov 22, 2000 at 01:00:27PM -0800, Jim Wilson wrote:
> No.  The old 32-bit ABI only guarantees a max of 4-byte alignment.

Phooey.

Perhaps the solution, then, is to adjust the predicates
such that we only accept offsettable memory operands,
which would make the e/o alternatives match, which would
prevent some of the silly reloads we're getting.


r~

Follow-Ups:
- Re: c/859: sparc-specific pessimal code for simple loop
  - From: Geoff Keating

References:
- c/859: sparc-specific pessimal code for simple loop
  - From: jbuck
- Re: c/859: sparc-specific pessimal code for simple loop
  - From: Richard Henderson
- Re: c/859: sparc-specific pessimal code for simple loop
  - From: Jim Wilson

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