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* [Bug rtl-optimization/55122] New: ICE: maximum number of LRA constraint passes is achieved (15)
@ 2012-10-29 16:16 antoine.balestrat at gmail dot com
  2012-10-29 18:22 ` [Bug rtl-optimization/55122] [4.8 Regression] " rguenth at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: antoine.balestrat at gmail dot com @ 2012-10-29 16:16 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122

             Bug #: 55122
           Summary: ICE: maximum number of LRA constraint passes is
                    achieved (15)
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: antoine.balestrat@gmail.com


Hello !
I'm using GCC 4.8.0 as of 20121029 (r192944) at -O3 and in 32 bit mode :

$ cat lra.c
int i, a;
unsigned long long b;

void f(void)
{
    for(i = 0; i < 15; i++)
        b *= b;

    b *= a ? 0 : b;
}

$ xgcc -w -O3 -m32 lra.c
lra.c: In function ‘f’:
lra.c:10:1: internal compiler error: Maximum number of LRA constraint passes is
achieved (15)

 }
 ^
0x8e59de lra_constraints(bool)
    ../../srcdir/gcc/lra-constraints.c:3264
0x8d6913 lra(_IO_FILE*)
    ../../srcdir/gcc/lra.c:2281
0x88c38a do_reload
    ../../srcdir/gcc/ira.c:4624
0x88c598 rest_of_handle_reload
    ../../srcdir/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.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug rtl-optimization/55122] [4.8 Regression] ICE: maximum number of LRA constraint passes is achieved (15)
  2012-10-29 16:16 [Bug rtl-optimization/55122] New: ICE: maximum number of LRA constraint passes is achieved (15) antoine.balestrat at gmail dot com
@ 2012-10-29 18:22 ` rguenth at gcc dot gnu.org
  2012-10-30  3:06 ` hp at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-10-29 18:22 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vmakarov at gcc dot gnu.org
   Target Milestone|---                         |4.8.0
            Summary|ICE: maximum number of LRA  |[4.8 Regression] ICE:
                   |constraint passes is        |maximum number of LRA
                   |achieved (15)               |constraint passes is
                   |                            |achieved (15)


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug rtl-optimization/55122] [4.8 Regression] ICE: maximum number of LRA constraint passes is achieved (15)
  2012-10-29 16:16 [Bug rtl-optimization/55122] New: ICE: maximum number of LRA constraint passes is achieved (15) antoine.balestrat at gmail dot com
  2012-10-29 18:22 ` [Bug rtl-optimization/55122] [4.8 Regression] " rguenth at gcc dot gnu.org
@ 2012-10-30  3:06 ` hp at gcc dot gnu.org
  2012-10-30 10:37 ` hjl.tools at gmail dot com
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: hp at gcc dot gnu.org @ 2012-10-30  3:06 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hp at gcc dot gnu.org

--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-10-30 03:06:34 UTC ---
If I hadn't seen the revision r192944 in the description, I'd have thought this
was a dup of PR55106. But, as that's after the fix for that PR, I guess it
isn't.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug rtl-optimization/55122] [4.8 Regression] ICE: maximum number of LRA constraint passes is achieved (15)
  2012-10-29 16:16 [Bug rtl-optimization/55122] New: ICE: maximum number of LRA constraint passes is achieved (15) antoine.balestrat at gmail dot com
  2012-10-29 18:22 ` [Bug rtl-optimization/55122] [4.8 Regression] " rguenth at gcc dot gnu.org
  2012-10-30  3:06 ` hp at gcc dot gnu.org
@ 2012-10-30 10:37 ` hjl.tools at gmail dot com
  2012-11-07 22:11 ` vmakarov at gcc dot gnu.org
  2012-12-07 13:15 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: hjl.tools at gmail dot com @ 2012-10-30 10:37 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-10-30
                 CC|                            |hjl.tools at gmail dot com
     Ever Confirmed|0                           |1

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2012-10-30 10:36:29 UTC ---
Confirmed.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug rtl-optimization/55122] [4.8 Regression] ICE: maximum number of LRA constraint passes is achieved (15)
  2012-10-29 16:16 [Bug rtl-optimization/55122] New: ICE: maximum number of LRA constraint passes is achieved (15) antoine.balestrat at gmail dot com
                   ` (2 preceding siblings ...)
  2012-10-30 10:37 ` hjl.tools at gmail dot com
@ 2012-11-07 22:11 ` vmakarov at gcc dot gnu.org
  2012-12-07 13:15 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: vmakarov at gcc dot gnu.org @ 2012-11-07 22:11 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122

--- Comment #3 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2012-11-07 22:11:13 UTC ---
Author: vmakarov
Date: Wed Nov  7 22:11:08 2012
New Revision: 193310

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193310
Log:
2012-11-07  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55122
    * lra-constraints.c (match_reload): Sync values for dead input
    pseudos.

2012-11-07  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55122
    * gcc.dg/pr55122.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/pr55122.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug rtl-optimization/55122] [4.8 Regression] ICE: maximum number of LRA constraint passes is achieved (15)
  2012-10-29 16:16 [Bug rtl-optimization/55122] New: ICE: maximum number of LRA constraint passes is achieved (15) antoine.balestrat at gmail dot com
                   ` (3 preceding siblings ...)
  2012-11-07 22:11 ` vmakarov at gcc dot gnu.org
@ 2012-12-07 13:15 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-07 13:15 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55122

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

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

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-07 13:15:15 UTC ---
Fixed.


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2012-12-07 13:15 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-10-29 16:16 [Bug rtl-optimization/55122] New: ICE: maximum number of LRA constraint passes is achieved (15) antoine.balestrat at gmail dot com
2012-10-29 18:22 ` [Bug rtl-optimization/55122] [4.8 Regression] " rguenth at gcc dot gnu.org
2012-10-30  3:06 ` hp at gcc dot gnu.org
2012-10-30 10:37 ` hjl.tools at gmail dot com
2012-11-07 22:11 ` vmakarov at gcc dot gnu.org
2012-12-07 13:15 ` rguenth at gcc dot gnu.org

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