From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-481910-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 70315 invoked by alias); 26 Mar 2015 20:24:34 -0000
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
Received: (qmail 63647 invoked by uid 48); 26 Mar 2015 20:24:30 -0000
From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/65577] ICE on g++.dg/torture/pr58369.C
Date: Thu, 26 Mar 2015 20:52:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 5.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: msebor at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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: <bug-65577-4-n07IbIWpZ1@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-65577-4@http.gcc.gnu.org/bugzilla/>
References: <bug-65577-4@http.gcc.gnu.org/bugzilla/>
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: 2015-03/txt/msg03054.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65577

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
According to git bisect, 2d5ee2b9035db2414ae3535db18550c1d90e52fd is the first
bad commit:

commit 2d5ee2b9035db2414ae3535db18550c1d90e52fd
Author: meissner <meissner@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Thu Mar 19 22:37:33 2015 +0000

    [gcc]
    2015-03-19  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/65240
        * config/rs6000/predicates.md (easy_fp_constant): Remove special
        -ffast-math handling that kept non-0 constants live in the RTL
        until reload.  Remove logic testing the number of instructions it
        took to create a constant in a GPR that was never used, due to a
        test for soft-float earlier.
        (memory_fp_constant): Delete, no longer used.

        * config/rs6000/rs6000.md (mov<MODE>_hardfloat): Remove
        alternatives for loading non-0 constants into GPRs for hard
        floating point that is no longer needed due to changes in
        easy_fp_constant.  Add support for loading 0.0 into GPRs.
        (mov<mode>_hardfloat32): Likewise.
        (mov<mode>_hardfloat64): Likewise.
        (mov<mode>_64bit_dm): Likewise.
        (movtd_64bit_nodm): Likewise.
        (pre-reload move FP constant define_split): Delete define_split,
        since it is no longer used.
        (extenddftf2_internal): Remove GHF constraints that are not valid
        for extenddftf2.

    [gcc/testsuite]
    2015-03-19  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/65240
        * gcc/testsuite/g++.dg/pr65240.h: Add tests for PR 65240.
        * gcc/testsuite/g++.dg/pr65240-1.C: Likewise.
        * gcc/testsuite/g++.dg/pr65240-2.C: Likewise.
        * gcc/testsuite/g++.dg/pr65240-3.C: Likewise.
        * gcc/testsuite/g++.dg/pr65240-4.C: Likewise.



    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@221524
138bc75d-0d04-0410-961f-82ee72b054a4