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[PATCH, i386]: Implement zero-extended cmove patterns

From: Uros Bizjak <ubizjak at gmail dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Date: Thu, 18 Jun 2015 21:29:58 +0200
Subject: [PATCH, i386]: Implement zero-extended cmove patterns
Authentication-results: sourceware.org; auth=none

Attached patch implements zero-extended cmove patterns. Also, the
patch merges a couple of peephole patterns into one.

2015-06-18  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (*movsicc_noc_zext): New insn.
    (zero-extended cmove with mem peephole2): New pattern.
    (cmove with mem peephole2): Merge patterns.

testsuite/ChangeLog:

2015-06-18  Uros Bizjak  <ubizjak@gmail.com>

    * gcc.target/i386/cmov9.c: New test.

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

Uros.

Attachment: p.diff.txt
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