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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/102766] [12 Regression][nvptx] internal compiler
 error: in df_insn_delete, at df-scan.c:949
Date: Fri, 15 Oct 2021 10:32:35 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102766

Martin Li=C5=A1ka <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |ASSIGNED

--- Comment #5 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
Reduced test-case:

$ cat task.i
void gomp_thread();

void gomp_create_target_task() {
  gomp_thread();
  __builtin_unreachable();
}

$ /dev/shm/objdir2/gcc/xgcc -B/dev/shm/objdir2/gcc/ task.i -c -O2  -g
during RTL pass: final
task.i: In function =E2=80=98gomp_create_target_task=E2=80=99:
task.i:6:1: internal compiler error: in df_insn_delete, at df-scan.c:949
    6 | }
      | ^
0xcf8940 df_insn_delete(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/df-scan.c:949
0xc7fa5d delete_insn(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/cfgrtl.c:178
0x181533c reemit_marker_as_note
        /home/marxin/Programming/gcc/gcc/var-tracking.c:10024
0x18162a6 delete_vta_debug_insn
        /home/marxin/Programming/gcc/gcc/var-tracking.c:10366
0x18165a0 delete_vta_debug_insns(bool)
        /home/marxin/Programming/gcc/gcc/var-tracking.c:10411
0xe26655 rest_of_handle_final
        /home/marxin/Programming/gcc/gcc/final.c:4279
0xe26ad8 execute
        /home/marxin/Programming/gcc/gcc/final.c:4363
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.=