RE: [Patch, microblaze]: Add optimized lshrsi3

[David Holsgrove <david dot holsgrove at xilinx dot com>]

Hi Michael,

> -----Original Message-----
> From: Michael Eager [mailto:eager@eagerm.com]
> Sent: Sunday, 9 February 2014 2:58 am
> To: David Holsgrove; gcc-patches@gcc.gnu.org
> Cc: Edgar Iglesias; John Williams; Vidhumouli Hunsigida; Nagaraju Mekala
> Subject: Re: [Patch, microblaze]: Add optimized lshrsi3
> 
> On 11/25/13 23:53, David Holsgrove wrote:
> > Add optimized lshrsi3 instruction, to be used when optimizing for size
> > with immediate values over 5
> >
> > Changelog
> >
> > 2013-11-26  Nagaraju Mekala <nagaraju.mekala@xilinx.com>
> >
> >   * gcc/config/microblaze/microblaze.md: Add size optimized lshrsi3 insn.
> 
> David --
> 
> Please put the description of the patch in the text of the email,
> rather than hiding it within an attached patch.
> 
> The patch describes a very specific situation where this patch
> will have an effect.  Please provide a test case.

Updated version of patch attached with testcase. New Changelog entries are;

Changelog

2013-11-26  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/config/microblaze/microblaze.md: Add size optimized lshrsi3 insn

ChangeLog/testsuite

2014-02-12  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/testsuite/gcc.target/microblaze/others/lshrsi_Os_1.c: New test.

thanks,
David

> 
> --
> Michael Eager	 eager@eagercon.com
> 1960 Park Blvd., Palo Alto, CA 94306  650-325-8077

Attachment: 0003-Patch-microblaze-Add-optimized-lshrsi3.patch
Description: 0003-Patch-microblaze-Add-optimized-lshrsi3.patch