From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2324 invoked by alias); 29 Jul 2014 11:46:27 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 2244 invoked by uid 48); 29 Jul 2014 11:46:24 -0000 From: "m.zakirov at samsung dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/43725] Poor instructions selection, scheduling and registers allocation for ARM NEON intrinsics Date: Tue, 29 Jul 2014 11:46:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.5.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: enhancement X-Bugzilla-Who: m.zakirov at samsung dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-07/txt/msg01906.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43725 --- Comment #9 from Marat Zakirov --- I used following patch diff --git a/gcc/cse.c b/gcc/cse.c index 34f9364..a9e0442 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -2862,6 +2862,9 @@ canon_reg (rtx x, rtx insn) || ! REGNO_QTY_VALID_P (REGNO (x))) return x; + if (GET_MODE (x) == XImode) + return x; + q = REG_QTY (REGNO (x)); ent = &qty_table[q]; first = ent->first_reg; diff --git a/gcc/fwprop.c b/gcc/fwprop.c index 547fcd6..eadc729 100644 --- a/gcc/fwprop.c +++ b/gcc/fwprop.c @@ -1317,6 +1317,9 @@ forward_propagate_and_simplify (df_ref use, rtx def_insn, rtx def_set) if (!new_rtx) return false; + if (GET_MODE (reg) == XImode) + return false; + return try_fwprop_subst (use, loc, new_rtx, def_insn, set_reg_equal); }