From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-399309-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 7959 invoked by alias); 22 Aug 2012 22:52:43 -0000
Received: (qmail 7949 invoked by uid 22791); 22 Aug 2012 22:52:42 -0000
X-SWARE-Spam-Status: No, hits=-4.3 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED
X-Spam-Check-By: sourceware.org
Received: from localhost (HELO gcc.gnu.org) (127.0.0.1)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 22 Aug 2012 22:52:29 +0000
From: "olegendo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/54089] [SH] Refactor shift patterns
Date: Wed, 22 Aug 2012 22:52:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Keywords:
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: olegendo at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: olegendo at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields:
Message-ID: <bug-54089-4-coPLWZiKJm@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-54089-4@http.gcc.gnu.org/bugzilla/>
References: <bug-54089-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2012-08/txt/msg01581.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54089

--- Comment #15 from Oleg Endo <olegendo at gcc dot gnu.org> 2012-08-22 22:52:25 UTC ---
Author: olegendo
Date: Wed Aug 22 22:52:17 2012
New Revision: 190603

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190603
Log:
    PR target/54089
    * config/sh/predicates (p27_rshift_count_operand,
    not_p27_rshift_count_operand): New predicates.
    * config/sh/sh.c (sh_ashlsi_clobbers_t_reg_p,
    sh_lshrsi_clobbers_t_reg_p, sh_dynamicalize_shift_p): Handle special
    case when shift amount is 31.
    (gen_ashift): Emit gen_shlr instead of gen_lshrsi3_m.
    * config/sh/sh.md (ashlsi3_d): Set type to 'dyn_shift' instead
    of 'arith'.
    (ashlsi_c): Rename to shll.  Adapt calls to gen_ashlsi_c throughout
    the file.
    (lshrsi3): Remove clobber from expander.  Use shift_count_operand
    instead of nonmemory_operand predicate for second operand.  Add
    handling of case lshrsi3_n_clobbers_t.
    (lshrsi3_k): Use p27_rshift_count_operand for second operand.
    (lshrsi3_d): Make insn_and_split.  Split dynamic shift to constant
    shift sequences if beneficial.
    (lshrsi3_n): Make insn_and_split.  Split constant shift sequence to
    dynamic shift if beneficial.
    (lshrsi3_n_clobbers_t): New insn_and_split.
    (lshrsi3_m): Delete.

    PR target/54089
    * gcc.target/sh/pr54089-2.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/sh/pr54089-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sh/predicates.md
    trunk/gcc/config/sh/sh.c
    trunk/gcc/config/sh/sh.md
    trunk/gcc/testsuite/ChangeLog