[Bug c/105952] New: [12/13 Regression] ICE in sel_redirect_edge_and_branch, at sel-sched-ir.cc:5680

[Bug c/105952] New: [12/13 Regression] ICE in sel_redirect_edge_and_branch, at sel-sched-ir.cc:5680

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105952

            Bug ID: 105952
           Summary: [12/13 Regression] ICE in
                    sel_redirect_edge_and_branch, at sel-sched-ir.cc:5680
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started between 20220306 and 20220327, affects file pr27531-1.c :
(gcc configured with --enable-checking=yes)


$ gcc-13-20220612 -c pr27531-1.c -O -fno-inline -fschedule-insns
-fselective-scheduling
during RTL pass: sched1
pr27531-1.c: In function 'main':
pr27531-1.c:59:1: internal compiler error: Segmentation fault
   59 | }
      | ^
0xe13ecf crash_signal
        ../../gcc/toplev.cc:322
0xdbd165 sel_redirect_edge_and_branch(edge_def*, basic_block_def*)
        ../../gcc/sel-sched-ir.cc:5680
0xdbe0a8 maybe_tidy_empty_bb
        ../../gcc/sel-sched-ir.cc:3804
0xdbec65 purge_empty_blocks()
        ../../gcc/sel-sched-ir.cc:3948
0xdd1b4c sel_sched_region_1
        ../../gcc/sel-sched.cc:7519
0xdd2ff0 sel_sched_region(int)
        ../../gcc/sel-sched.cc:7634
0xdd3899 run_selective_scheduling()
        ../../gcc/sel-sched.cc:7720
0xdafa1d rest_of_handle_sched
        ../../gcc/sched-rgn.cc:3720
0xdafa1d execute
        ../../gcc/sched-rgn.cc:3830

[Bug rtl-optimization/105952] [12/13 Regression] ICE in sel_redirect_edge_and_branch, at sel-sched-ir.cc:5680

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105952

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |12.2

[Bug rtl-optimization/105952] [12/13 Regression] ICE in sel_redirect_edge_and_branch, at sel-sched-ir.cc:5680

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105952

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |rguenth at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2022-06-16

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r12-7687-g3a7ba8fd0cda3878, but it likely revealed it.

[Bug rtl-optimization/105952] [12/13 Regression] ICE in sel_redirect_edge_and_branch, at sel-sched-ir.cc:5680

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105952

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |amonakov at gcc dot gnu.org
           Priority|P3                          |P2

[Bug rtl-optimization/105952] [12/13/14 Regression] ICE in sel_redirect_edge_and_branch, at sel-sched-ir.cc:5680

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105952

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|12.3                        |12.4

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 12.3 is being released, retargeting bugs to GCC 12.4.