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Re: [patch] MIPS/gcc: Revert removal of DImode shifts for 32-bit targets

To: "Maciej W. Rozycki" <macro@linux-mips.org>
Subject: Re: [patch] MIPS/gcc: Revert removal of DImode shifts for 32-bit targets
From: Richard Henderson <rth@redhat.com>
Date: Fri, 23 Jul 2004 13:27:03 -0700
Cc: Richard Sandiford <rsandifo@redhat.com>, Ralf Baechle <ralf@linux-mips.org>, gcc-patches@gcc.gnu.org, linux-mips@linux-mips.org
In-reply-to: <Pine.LNX.4.55.0407201505330.14824@jurand.ds.pg.gda.pl>
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References: <Pine.LNX.4.55.0407191648451.3667@jurand.ds.pg.gda.pl> <87hds49bmo.fsf@redhat.com> <Pine.LNX.4.55.0407191907300.3667@jurand.ds.pg.gda.pl> <20040719213801.GD14931@redhat.com> <Pine.LNX.4.55.0407201505330.14824@jurand.ds.pg.gda.pl>
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On Fri, Jul 23, 2004 at 04:41:35PM +0200, Maciej W. Rozycki wrote:
>  OK -- but then is there any way to convince gcc to embed a "static
> inline" version of these functions instead of emitting a call?

No.

> Sometimes putting these eight (or nine for ashrdi3) instructions
> inline would be a performance win.

Sometimes, maybe.  I suspect you'll find that in general it's
nothing but bloat.


r~

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