[Bug target/57097] New: [4.8/4.9 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[Bug target/57097] New: [4.8/4.9 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

             Bug #: 57097
           Summary: [4.8/4.9 Regression] ICE: in find_hard_regno_for, at
                    lra-assigns.c:561 with -O2 -fPIC -m32
    Classification: Unclassified
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 29956
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29956
reduced testcase

Compiler output:
$ gcc -O2 -fPIC -m32 testcase.c
testcase.c: In function 'main':
testcase.c:27:1: internal compiler error: in find_hard_regno_for, at
lra-assigns.c:561
 }
 ^
0x8eeb4f find_hard_regno_for
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:561
0x8ef0b1 assign_by_spills
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1198
0x8f1693 lra_assign()
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1427
0x8ece6c lra(_IO_FILE*)
        /mnt/svn/gcc-trunk/gcc/lra.c:2308
0x8a0268 do_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4619
0x8a0268 rest_of_handle_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4731
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

$ gcc -v                       
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-198362-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-198362-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20130427 (experimental) (GCC) 

Tested revisions:
r198362 - crash
4.8 r198018 - crash
4.7 r198018 - OK

[Bug target/57097] [4.8/4.9 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-04-29
                 CC|                            |mpolacek at gcc dot
                   |                            |gnu.org, vmakarov at gcc
                   |                            |dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> 2013-04-29 12:24:41 UTC ---
Confirmed.  Started with gcc.gnu.org/r193588

[Bug target/57097] [4.8 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org
      Known to work|                            |4.9.0
            Summary|[4.8/4.9 Regression] ICE:   |[4.8 Regression] ICE: in
                   |in find_hard_regno_for, at  |find_hard_regno_for, at
                   |lra-assigns.c:561 with -O2  |lra-assigns.c:561 with -O2
                   |-fPIC -m32                  |-fPIC -m32
      Known to fail|4.9.0                       |

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-05-01 07:48:34 UTC ---
Author: vmakarov
Date: Mon Apr 29 19:42:20 2013
New Revision: 198432

URL: http://gcc.gnu.org/viewcvs?rev=198432&root=gcc&view=rev
Log:
2013-04-29  Vladimir Makarov  <vmakarov@redhat.com>

    PR target/57097
        * lra-constraints.c (process_alt_operands): Discourage a bit more
    using memory for pseudos.  Print cost dump for alternatives.
    Modify cost values for conflicts with early clobbers.
    (curr_insn_transform): Spill pseudos reassigned to NO_REGS.

2013-04-29  Vladimir Makarov  <vmakarov@redhat.com>

    PR target/57097
    * gcc.target/i386/pr57097.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr57097.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog

[Bug target/57097] [4.8 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
   Target Milestone|---                         |4.8.1

[Bug target/57097] [4.8 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ishiura-compiler at ml dot
                   |                            |kwansei.ac.jp

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-05-02 03:16:35 UTC ---
*** Bug 57131 has been marked as a duplicate of this bug. ***

[Bug target/57097] [4.8 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |vmakarov at gcc dot gnu.org
                   |gnu.org                     |

[Bug target/57097] [4.8 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-05-02 19:29:15 UTC ---
Author: vmakarov
Date: Thu May  2 17:56:40 2013
New Revision: 198557

URL: http://gcc.gnu.org/viewcvs?rev=198557&root=gcc&view=rev
Log:
2013-05-02  Vladimir Makarov  <vmakarov@redhat.com>

    Backport from mainline
    2013-04-29  Vladimir Makarov  <vmakarov@redhat.com>

    PR target/57097
    * lra-constraints.c (process_alt_operands): Discourage a bit more
    using memory for pseudos.  Print cost dump for alternatives.
    Modify cost values for conflicts with early clobbers.
    (curr_insn_transform): Spill pseudos reassigned to NO_REGS.

2013-05-02  Vladimir Makarov  <vmakarov@redhat.com>

    Backport from mainline
    2013-04-29  Vladimir Makarov  <vmakarov@redhat.com>

    PR target/57097
    * gcc.target/i386/pr57097.c: New test.


Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.target/i386/pr57097.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/lra-constraints.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog