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* [Bug rtl-optimization/49800] New: segfault with -fsched-pressure -fdump-rtl-sched1
@ 2011-07-21  8:22 krebbel at gcc dot gnu.org
  2012-02-02  8:54 ` [Bug rtl-optimization/49800] [4.7 Regression] " pinskia at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: krebbel at gcc dot gnu.org @ 2011-07-21  8:22 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49800

           Summary: segfault with -fsched-pressure -fdump-rtl-sched1
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: krebbel@gcc.gnu.org


t.c:

void foo (int a)
{
}


/home/andreas/clean/gcc-head-build/gcc/cc1 -O2 -fdump-rtl-sched1
-fsched-pressure -quiet t.c

Program received signal SIGSEGV, Segmentation fault.
print_pseudo_costs (f=0x80cc9340) at
/home/andreas/clean/gcc-head/gcc/ira-costs.c:1404
1404          if (REG_N_REFS (regno) <= 0)


#0  print_pseudo_costs (f=0x80cc9340) at
/home/andreas/clean/gcc-head/gcc/ira-costs.c:1404
#1  find_costs_and_classes (dump_file=0x80cc9340) at
/home/andreas/clean/gcc-head/gcc/ira-costs.c:1770
#2  0x00000000803edf9e in ira_set_pseudo_classes (dump_file=0x80cc9340)
    at /home/andreas/clean/gcc-head/gcc/ira-costs.c:2031
#3  0x000000008085cda8 in sched_init () at
/home/andreas/clean/gcc-head/gcc/haifa-sched.c:4250
#4  0x00000000808654f4 in haifa_sched_init () at
/home/andreas/clean/gcc-head/gcc/haifa-sched.c:4273
#5  0x00000000804dcbca in schedule_insns () at
/home/andreas/clean/gcc-head/gcc/sched-rgn.c:3299
#6  schedule_insns () at /home/andreas/clean/gcc-head/gcc/sched-rgn.c:3287
#7  0x00000000804dd4ce in rest_of_handle_sched () at
/home/andreas/clean/gcc-head/gcc/sched-rgn.c:3501

(gdb) p regstat_n_sets_and_refs
$1 = (regstat_n_sets_and_refs_t *) 0x0

regstat_n_sets_and_refs is not initialized when sched-pressure perhaps invoking
regstat_init_n_sets_and_refs in sched_init is needed?

This worked with 4.6. The check in print_pseudo_costs was:
  for (regno = max_reg_num () - 1; regno >= FIRST_PSEUDO_REGISTER; regno--)
    {
      if (regno_reg_rtx[regno] == NULL_RTX)
    continue;

and has been changed to:

  for (regno = max_reg_num () - 1; regno >= FIRST_PSEUDO_REGISTER; regno--)
    {
      if (REG_N_REFS (regno) <= 0)
    continue;


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug rtl-optimization/49800] [4.7 Regression] segfault with -fsched-pressure -fdump-rtl-sched1
  2011-07-21  8:22 [Bug rtl-optimization/49800] New: segfault with -fsched-pressure -fdump-rtl-sched1 krebbel at gcc dot gnu.org
@ 2012-02-02  8:54 ` pinskia at gcc dot gnu.org
  2012-02-02  8:59 ` krebbel at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-02-02  8:54 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49800

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|segfault with               |[4.7 Regression] segfault
                   |-fsched-pressure            |with -fsched-pressure
                   |-fdump-rtl-sched1           |-fdump-rtl-sched1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-02 08:53:43 UTC ---
Does this still fail?


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug rtl-optimization/49800] [4.7 Regression] segfault with -fsched-pressure -fdump-rtl-sched1
  2011-07-21  8:22 [Bug rtl-optimization/49800] New: segfault with -fsched-pressure -fdump-rtl-sched1 krebbel at gcc dot gnu.org
  2012-02-02  8:54 ` [Bug rtl-optimization/49800] [4.7 Regression] " pinskia at gcc dot gnu.org
@ 2012-02-02  8:59 ` krebbel at gcc dot gnu.org
  2012-02-02 18:34 ` vmakarov at redhat dot com
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: krebbel at gcc dot gnu.org @ 2012-02-02  8:59 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49800

--- Comment #2 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2012-02-02 08:58:57 UTC ---
(In reply to comment #1)
> Does this still fail?

Still fails with r183790.


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug rtl-optimization/49800] [4.7 Regression] segfault with -fsched-pressure -fdump-rtl-sched1
  2011-07-21  8:22 [Bug rtl-optimization/49800] New: segfault with -fsched-pressure -fdump-rtl-sched1 krebbel at gcc dot gnu.org
  2012-02-02  8:54 ` [Bug rtl-optimization/49800] [4.7 Regression] " pinskia at gcc dot gnu.org
  2012-02-02  8:59 ` krebbel at gcc dot gnu.org
@ 2012-02-02 18:34 ` vmakarov at redhat dot com
  2012-02-02 19:46 ` vmakarov at gcc dot gnu.org
  2012-02-02 20:03 ` pinskia at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: vmakarov at redhat dot com @ 2012-02-02 18:34 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49800

--- Comment #3 from Vladimir Makarov <vmakarov at redhat dot com> 2012-02-02 18:33:34 UTC ---
I am working on it.


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug rtl-optimization/49800] [4.7 Regression] segfault with -fsched-pressure -fdump-rtl-sched1
  2011-07-21  8:22 [Bug rtl-optimization/49800] New: segfault with -fsched-pressure -fdump-rtl-sched1 krebbel at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2012-02-02 18:34 ` vmakarov at redhat dot com
@ 2012-02-02 19:46 ` vmakarov at gcc dot gnu.org
  2012-02-02 20:03 ` pinskia at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: vmakarov at gcc dot gnu.org @ 2012-02-02 19:46 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49800

--- Comment #4 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2012-02-02 19:45:09 UTC ---
Author: vmakarov
Date: Thu Feb  2 19:45:04 2012
New Revision: 183843

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183843
Log:
2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/49800
    * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
    (sched_finish): Call regstat_free_n_sets_and_refs.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/haifa-sched.c


^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug rtl-optimization/49800] [4.7 Regression] segfault with -fsched-pressure -fdump-rtl-sched1
  2011-07-21  8:22 [Bug rtl-optimization/49800] New: segfault with -fsched-pressure -fdump-rtl-sched1 krebbel at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2012-02-02 19:46 ` vmakarov at gcc dot gnu.org
@ 2012-02-02 20:03 ` pinskia at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-02-02 20:03 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49800

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.7.0

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-02 20:03:08 UTC ---
Fixed.


^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-02-02 20:03 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-07-21  8:22 [Bug rtl-optimization/49800] New: segfault with -fsched-pressure -fdump-rtl-sched1 krebbel at gcc dot gnu.org
2012-02-02  8:54 ` [Bug rtl-optimization/49800] [4.7 Regression] " pinskia at gcc dot gnu.org
2012-02-02  8:59 ` krebbel at gcc dot gnu.org
2012-02-02 18:34 ` vmakarov at redhat dot com
2012-02-02 19:46 ` vmakarov at gcc dot gnu.org
2012-02-02 20:03 ` pinskia at gcc dot gnu.org

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