From: Paul Brook <paul@codesourcery.com>
To: gcc-patches@gcc.gnu.org
Cc: Richard Henderson <rth@redhat.com>,
Richard Sandiford <rsandifo@redhat.com>,
"Maciej W. Rozycki" <macro@linux-mips.org>,
Nigel Stephens <nigel@mips.com>,
linux-mips@linux-mips.org
Subject: Re: [patch] MIPS/gcc: Revert removal of DImode shifts for 32-bit targets
Date: Wed, 11 Aug 2004 01:40:03 +0100 [thread overview]
Message-ID: <200408110140.03725.paul@codesourcery.com> (raw)
In-Reply-To: <20040810232020.GA21922@redhat.com>
On Wednesday 11 August 2004 00:20, Richard Henderson wrote:
> On Tue, Aug 10, 2004 at 06:30:28AM +0100, Richard Sandiford wrote:
> > The whole thing's in a sequence that gets discarded if
> > expand_doubleword_shift returns false. Isn't that enough?
>
> Missed that, sorry.
>
> Patch seems ok then. We'd have to add a new macro/target flag
> to handle non-truncating shifts -- we've got cases:
>
> (1) Large shift shifts out all bits (ARM)
ARM is actually shift count modulo 256
Paul
next prev parent reply other threads:[~2004-08-11 0:40 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-19 15:35 [patch] MIPS/gcc: Revert removal of DImode shifts for 32-bit targets Maciej W. Rozycki
2004-07-19 16:59 ` Richard Sandiford
2004-07-19 17:32 ` [patch] MIPS/gcc: Revert removal of DImode shifts for 32-bittargets David Edelsohn
2004-07-19 17:33 ` [patch] MIPS/gcc: Revert removal of DImode shifts for 32-bit targets Maciej W. Rozycki
2004-07-19 17:37 ` Richard Sandiford
2004-07-19 21:38 ` Richard Henderson
2004-07-23 14:41 ` Maciej W. Rozycki
2004-07-23 20:27 ` Richard Henderson
2004-07-23 21:12 ` Ralf Baechle
2004-07-26 11:56 ` Maciej W. Rozycki
2004-08-02 20:03 ` Nigel Stephens
2004-08-03 5:30 ` Richard Sandiford
2004-08-03 9:22 ` Nigel Stephens
2004-08-03 9:36 ` Richard Sandiford
2004-08-03 9:54 ` Nigel Stephens
2004-08-04 19:57 ` Maciej W. Rozycki
2004-08-04 20:37 ` Nigel Stephens
2004-08-04 20:54 ` Maciej W. Rozycki
2004-08-04 23:39 ` Nigel Stephens
2004-08-07 19:01 ` Richard Sandiford
2004-08-09 22:08 ` Richard Henderson
2004-08-10 5:30 ` Richard Sandiford
2004-08-10 23:20 ` Richard Henderson
2004-08-11 0:24 ` Andreas Schwab
2004-08-11 0:40 ` Paul Brook [this message]
2004-08-11 4:32 ` Richard Henderson
2004-08-31 19:51 ` Richard Sandiford
2004-09-03 6:53 ` Richard Henderson
2004-09-03 7:05 ` Richard Sandiford
2004-09-03 7:08 ` Richard Henderson
2004-09-03 7:11 ` Richard Sandiford
2004-09-03 7:20 ` Richard Henderson
2004-09-03 7:29 ` Richard Sandiford
2004-09-03 20:15 ` Richard Henderson
2004-09-04 8:53 ` Richard Sandiford
2004-09-05 0:03 ` Richard Henderson
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