[Bug target/64411] New: ICE: in verify_target_availability, at sel-sched.c:1577 with -Os -mcmodel=medium -fPIC -fschedule-insns -fselective-scheduling

[Bug target/64411] New: ICE: in verify_target_availability, at sel-sched.c:1577 with -Os -mcmodel=medium -fPIC -fschedule-insns -fselective-scheduling

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64411

            Bug ID: 64411
           Summary: ICE: in verify_target_availability, at
                    sel-sched.c:1577 with -Os -mcmodel=medium -fPIC
                    -fschedule-insns -fselective-scheduling
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 34337
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34337&action=edit
reduced testcase

Compiler output:
$ gcc -Os -mcmodel=medium -fPIC -fschedule-insns -fselective-scheduling
testcase.C
testcase.C: In function 'void checkx813()':
testcase.C:24:1: internal compiler error: in verify_target_availability, at
sel-sched.c:1577
 }
 ^
0xdd8489 verify_target_availability
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:1577
0xdd8489 find_best_reg_for_expr
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:1692
0xdd8489 fill_vec_av_set
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:3805
0xddab77 fill_ready_list
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:4035
0xddab77 find_best_expr
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:4398
0xddab77 fill_insns
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:5565
0xddc815 schedule_on_fences
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7390
0xddc815 sel_sched_region_2
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7528
0xddf60d sel_sched_region_1
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7570
0xddf60d sel_sched_region(int)
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7671
0xde0851 run_selective_scheduling()
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7747
0xdb650d rest_of_handle_sched
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3633
0xdb650d execute
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3743
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.

Tested revisions:
r219067 - ICE
4_9 r219040 - ICE
4_8 r218176 - ICE
4_7 r211571 - spill failure
4_6 r197894 - spill failure

[Bug target/64411] ICE: in verify_target_availability, at sel-sched.c:1577 with -Os -mcmodel=medium -fPIC -fschedule-insns -fselective-scheduling

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64411

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-01-05
                 CC|                            |mpolacek at gcc dot gnu.org
   Target Milestone|---                         |4.8.5
     Ever confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.

[Bug target/64411] ICE: in verify_target_availability, at sel-sched.c:1577 with -Os -mcmodel=medium -fPIC -fschedule-insns -fselective-scheduling

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64411

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.8.5                       |---