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[PATCH, i386]: Add zero-extended variants of PLUS and MULT simple LEA peephole2s.

From: Uros Bizjak <ubizjak at gmail dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Fri, 10 Aug 2012 19:24:35 +0200
Subject: [PATCH, i386]: Add zero-extended variants of PLUS and MULT simple LEA peephole2s.

Hello!

Attached patch adds zero-extended variants of PLUS and MULT simple LEA
peephole2s.  Patch also disables PLUS peephole2s on TARGET_OPT_AGU
targets (atom), since we already split correct LEAs according to LEA
vs ADD priority.

2012-08-10  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (simple LEA peephole2s): Add zero-extend
	variants of PLUS and MULT simple LEA patterns.  Disable PLUS
	patterns for TARGET_OPT_AGU.

Tested on x86_64-pc-linux-gnu {,-m32} and committed to mainline SVN.

Uros.

Attachment: p.diff.txt
Description: Text document

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