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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/112320] New: crash from insert_debug_temp_for_var_def
Date: Tue, 31 Oct 2023 17:31:01 +0000	[thread overview]
Message-ID: <bug-112320-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320

            Bug ID: 112320
           Summary: crash from insert_debug_temp_for_var_def
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

This C code:

unsigned void0_effective_addr2;
void0_i, void0_m, void0_p2;
void0() {
  void0_m = 800 - (void0_effective_addr2 & 5);
  int b1;
  void0_i = 0;
  for (; void0_i < void0_m; void0_i++)
    b1++;
  void0_p2 = b1++;
}

when compiled by recent gcc trunk, does this:

$ ~/gcc/results/bin/gcc -c -w -g -O1 bug972.c
during GIMPLE pass: dse
bug972.c: In function ‘void0’:
bug972.c:3:1: internal compiler error: Segmentation fault
    3 | void0() {
      | ^~~~~
0xebbce9 crash_signal(int)
        ../../trunk.year/gcc/toplev.cc:315
0xaa2308 gsi_for_stmt(gimple*)
        ../../trunk.year/gcc/gimple-iterator.cc:0
0x11364ea insert_debug_temp_for_var_def(gimple_stmt_iterator*, tree_node*)
        ../../trunk.year/gcc/tree-ssa.cc:471

The bug first seems to occur sometime between g:8c40b72036c967fb
and g:9119b008b4195e06, which is 35 commits.

             reply	other threads:[~2023-10-31 17:31 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-31 17:31 dcb314 at hotmail dot com [this message]
2023-10-31 17:35 ` [Bug tree-optimization/112320] [14 Regression] " pinskia at gcc dot gnu.org
2023-10-31 18:37 ` dcb314 at hotmail dot com
2023-10-31 18:47 ` dcb314 at hotmail dot com
2023-10-31 19:46 ` [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8 pinskia at gcc dot gnu.org
2023-10-31 22:21 ` hp at gcc dot gnu.org
2023-11-01  0:39 ` law at gcc dot gnu.org
2023-11-01  0:40 ` law at gcc dot gnu.org
2023-11-01  7:32 ` dcb314 at hotmail dot com
2023-11-01 11:28 ` pinskia at gcc dot gnu.org
2023-11-01 22:45 ` pinskia at gcc dot gnu.org
2023-11-02  8:29 ` rguenth at gcc dot gnu.org
2023-11-02  8:41 ` pinskia at gcc dot gnu.org
2023-11-02  8:42 ` pinskia at gcc dot gnu.org
2023-11-02 10:31 ` cvs-commit at gcc dot gnu.org
2023-11-02 10:31 ` rguenth at gcc dot gnu.org

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