[Bug rtl-optimization/55151] New: [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[Bug rtl-optimization/55151] New: [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

             Bug #: 55151
           Summary: [4.8 Regression] ICE: in assign_by_spills, at
                    lra-assigns.c:1217 with -fPIC
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 28582
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28582
reduced testcase (from gcc.dg/torture/pr20314-2.c)

Compiler output:
$ gcc -fPIC testcase.c         
testcase.c: In function 'f4':
testcase.c:9:1: internal compiler error: in assign_by_spills, at
lra-assigns.c:1217
 }
 ^
0x8d0249 assign_by_spills
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1217
0x8d21eb lra_assign()
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1369
0x8ce424 lra(_IO_FILE*)
        /mnt/svn/gcc-trunk/gcc/lra.c:2310
0x883d66 do_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4624
0x883d66 rest_of_handle_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4736
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.

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-10-31
                 CC|                            |mpolacek at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> 2012-10-31 21:52:21 UTC ---
Started with http://gcc.gnu.org/viewcvs?view=revision&revision=192719

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

--- Comment #2 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2012-11-05 16:38:34 UTC ---
Author: vmakarov
Date: Mon Nov  5 16:38:27 2012
New Revision: 193170

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193170
Log:
2012-11-05  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55151
    * lra-constraints.c (process_alt_operands): Permit putting reg
    value into memory.  Increase reject for this case.

2012-11-05  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55151
    * gcc.dg/pr55151.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/pr55151.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2012-11-05 21:44:50 UTC ---
On Linux/x86-64:

[hjl@gnu-tools-1 gcc]$
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/
/export/gnu/import/git/gcc/gcc/testsuite/gcc.dg/pr55151.c
-fno-diagnostics-show-caret -fPIC -S  -o pr55151.s -mno-lra
[hjl@gnu-tools-1 gcc]$
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/
/export/gnu/import/git/gcc/gcc/testsuite/gcc.dg/pr55151.c
-fno-diagnostics-show-caret -fPIC -S -m32 -o pr55151.s
/export/gnu/import/git/gcc/gcc/testsuite/gcc.dg/pr55151.c: In function ‘f4’:
/export/gnu/import/git/gcc/gcc/testsuite/gcc.dg/pr55151.c:13:1:
internal compiler error: in assign_by_spills, at lra-assigns.c:1217
0x8c7333 assign_by_spills
        /export/gnu/import/git/gcc/gcc/lra-assigns.c:1217
0x8c7c5f lra_assign()
        /export/gnu/import/git/gcc/gcc/lra-assigns.c:1369
0x8c25bd lra(_IO_FILE*)
        /export/gnu/import/git/gcc/gcc/lra.c:2303
0x878004 do_reload
        /export/gnu/import/git/gcc/gcc/ira.c:4624
0x878212 rest_of_handle_reload
        /export/gnu/import/git/gcc/gcc/ira.c:4737
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.
[hjl@gnu-tools-1 gcc]$

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org
   Target Milestone|---                         |4.8.0

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

--- Comment #4 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2012-11-07 22:20:26 UTC ---
Author: vmakarov
Date: Wed Nov  7 22:20:15 2012
New Revision: 193311

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193311
Log:
2012-11-07  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55151
    * gcc.dg/pr55151.c: Compile it only for x86_64.


Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/pr55151.c

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

--- Comment #5 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2012-11-07 22:43:35 UTC ---
Author: vmakarov
Date: Wed Nov  7 22:43:30 2012
New Revision: 193317

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193317
Log:
2012-11-07  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55151
    * gcc.dg/pr55151.c: Use ia32 instead of x86_64.


Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/pr55151.c

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

--- Comment #6 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2012-11-09 14:28:49 UTC ---
Author: vmakarov
Date: Fri Nov  9 14:28:40 2012
New Revision: 193361

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193361
Log:
2012-11-09  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55151
    * gcc.dg/pr55151.c: Move ...
    * gcc.target/i386/pr55151.c: ... here.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr55151.c
      - copied unchanged from r193349, trunk/gcc/testsuite/gcc.dg/pr55151.c
Removed:
    trunk/gcc/testsuite/gcc.dg/pr55151.c
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug rtl-optimization/55151] [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

Richard Biener <rguenth at gcc dot gnu.org> changed:

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

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-07 13:47:20 UTC ---
Fixed.