[Bug c/106859] New: [10/11/12/13 Regression] ICE in val_store, at var-tracking.cc:2532

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106859

            Bug ID: 106859
           Summary: [10/11/12/13 Regression] ICE in val_store, at
                    var-tracking.cc:2532
           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 with r7 at -O1+ and with file gcc.dg/torture/pr90553.c :


$ gcc-13-20220904 -c pr90553.c -O2 -da -funroll-loops -fcompare-debug
during RTL pass: vartrack
dump file: pr90553.gk.c.328r.vartrack
pr90553.c: In function 'f2':
pr90553.c:58:1: internal compiler error: Segmentation fault
   58 | }
      | ^
0xec93cf crash_signal
        ../../gcc/toplev.cc:314
0x127cc04 INSN_UID(rtx_def*)
        ../../gcc/rtl.h:1453
0x127cc04 val_store
        ../../gcc/var-tracking.cc:2532
0x127d826 compute_bb_dataflow
        ../../gcc/var-tracking.cc:6961
0x127e658 vt_find_locations
        ../../gcc/var-tracking.cc:7200
0x127fef3 variable_tracking_main_1
        ../../gcc/var-tracking.cc:10519
0x127fef3 variable_tracking_main()
        ../../gcc/var-tracking.cc:10565
0x127fef3 execute
        ../../gcc/var-tracking.cc:10602