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* [Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040
@ 2021-01-11 17:23 ortmann at posteo dot de
  2021-01-11 17:26 ` [Bug analyzer/98628] " ortmann at posteo dot de
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: ortmann at posteo dot de @ 2021-01-11 17:23 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

            Bug ID: 98628
           Summary: internal compiler error: in get_or_create_cluster, at
                    analyzer/store.cc:2040
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: analyzer
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: ortmann at posteo dot de
  Target Milestone: ---

Version: gcc (GCC) 11.0.0 20210110 (experimental)

System type: GNU/Linux kernel 5.10.5 glibc 2.32

Options given when GCC was configured/built:
--prefix=/home/michael/opt/gcc-11-20210110 --enable-languages=c
--disable-multilib --with-system-zlib

Trigger:

git clone https://github.com/eggheads/eggdrop.git
cd eggdrop/
git checkout 94d2a4fabfd47deb8d3ae59bea769eb3e792ef07
CC="/home/michael/opt/gcc-11-20210110/bin/gcc -fanalyzer" ./configure 
make config
make

Note: eggdrop requires tcl to be installed also.

Compiler output:

[...]
/home/michael/opt/gcc-11-20210110/bin/gcc -fanalyzer -g -O2 -pipe -Wall -I..
-I..  -DHAVE_CONFIG_H -I/usr/include -g3 -DDEBUG -DDEBUG_ASSERT -DDEBUG_MEM
-DDEBUG_DNS  -c misc.c
during IPA pass: analyzer
misc.c:958:25: internal compiler error: in get_or_create_cluster, at
analyzer/store.cc:2040
  958 |             *writeidx++ = ' ';
      |             ~~~~~~~~~~~~^~~~~
0x76f191 ana::store::get_or_create_cluster(ana::region const*)
        ../../gcc/analyzer/store.cc:2040
0x11b92f9 ana::binding_cluster::make_unknown_relative_to(ana::binding_cluster
const*, ana::store*, ana::store_manager*)
        ../../gcc/analyzer/store.cc:1326
0x11bac4e ana::binding_cluster::can_merge_p(ana::binding_cluster const*,
ana::binding_cluster const*, ana::binding_cluster*, ana::store*,
ana::store_manager*, ana::model_merger*)
        ../../gcc/analyzer/store.cc:1208
0x11bb746 ana::store::can_merge_p(ana::store const*, ana::store const*,
ana::store*, ana::store_manager*, ana::model_merger*)
        ../../gcc/analyzer/store.cc:2111
0x1189e4c ana::region_model::can_merge_with_p(ana::region_model const&,
ana::program_point const&, ana::region_model*) const
        ../../gcc/analyzer/region-model.cc:2954
0x117fa0a ana::program_state::can_merge_with_p(ana::program_state const&,
ana::program_point const&, ana::program_state*) const
        ../../gcc/analyzer/program-state.cc:1083
0x116f36d
ana::exploded_graph::maybe_process_run_of_before_supernode_enodes(ana::exploded_node*)
        ../../gcc/analyzer/engine.cc:2735
0x1170657 ana::exploded_graph::process_worklist()
        ../../gcc/analyzer/engine.cc:2443
0x11724bb ana::impl_run_checkers(ana::logger*)
        ../../gcc/analyzer/engine.cc:4739
0x11732ce ana::run_checkers()
        ../../gcc/analyzer/engine.cc:4810
0x1165c58 execute
        ../../gcc/analyzer/analyzer-pass.cc:87
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.
make[1]: *** [Makefile:83: misc.o] Error 1
make[1]: Leaving directory '/tmp/eggdrop/src'
make: *** [Makefile:251: debug] Error 2

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug analyzer/98628] internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040
  2021-01-11 17:23 [Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040 ortmann at posteo dot de
@ 2021-01-11 17:26 ` ortmann at posteo dot de
  2021-01-11 18:30 ` [Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a marxin at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: ortmann at posteo dot de @ 2021-01-11 17:26 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

--- Comment #1 from Michael Ortmann <ortmann at posteo dot de> ---
Created attachment 49939
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49939&action=edit
The preprocessed file (*.i*) that triggers the bug

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a
  2021-01-11 17:23 [Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040 ortmann at posteo dot de
  2021-01-11 17:26 ` [Bug analyzer/98628] " ortmann at posteo dot de
@ 2021-01-11 18:30 ` marxin at gcc dot gnu.org
  2021-01-11 19:50 ` dmalcolm at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2021-01-11 18:30 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2021-01-11
                 CC|                            |marxin at gcc dot gnu.org
            Summary|internal compiler error: in |[11 Regression] ICE in
                   |get_or_create_cluster, at   |get_or_create_cluster, at
                   |analyzer/store.cc:2040      |analyzer/store.cc:2040
                   |                            |since
                   |                            |r11-6513-gbe6c485b24f2b47a
     Ever confirmed|0                           |1

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:

$ cat misc.i
struct chanset_t help_subst_chan;
struct chanset_t *help_subst_chan_0_0;
struct chanset_t {
  struct chanset_t *next;
  char dname[];
} help_subst() {
  char *writeidx;
  for (;; help_subst_chan = *help_subst_chan_0_0) {
    my_strcpy(help_subst_chan.next->dname);
    if (help_subst_chan_0_0) {
      writeidx++;
      *writeidx++ = ' ';
    }
  }
}

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a
  2021-01-11 17:23 [Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040 ortmann at posteo dot de
  2021-01-11 17:26 ` [Bug analyzer/98628] " ortmann at posteo dot de
  2021-01-11 18:30 ` [Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a marxin at gcc dot gnu.org
@ 2021-01-11 19:50 ` dmalcolm at gcc dot gnu.org
  2021-01-12  1:29 ` cvs-commit at gcc dot gnu.org
  2021-01-12  2:12 ` dmalcolm at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: dmalcolm at gcc dot gnu.org @ 2021-01-11 19:50 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

David Malcolm <dmalcolm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #3 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Thanks; I can reproduce it and am debugging it now.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a
  2021-01-11 17:23 [Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040 ortmann at posteo dot de
                   ` (2 preceding siblings ...)
  2021-01-11 19:50 ` dmalcolm at gcc dot gnu.org
@ 2021-01-12  1:29 ` cvs-commit at gcc dot gnu.org
  2021-01-12  2:12 ` dmalcolm at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-01-12  1:29 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by David Malcolm <dmalcolm@gcc.gnu.org>:

https://gcc.gnu.org/g:ab88f3607233376c3145c320e92e71943a495bb5

commit r11-6603-gab88f3607233376c3145c320e92e71943a495bb5
Author: David Malcolm <dmalcolm@redhat.com>
Date:   Mon Jan 11 20:23:41 2021 -0500

    analyzer: fix ICE merging dereferencing unknown ptrs [PR98628]

    gcc/analyzer/ChangeLog:
            PR analyzer/98628
            * store.cc (binding_cluster::make_unknown_relative_to): Don't mark
            dereferenced unknown pointers as having escaped.

    gcc/testsuite/ChangeLog:
            PR analyzer/98628
            * gcc.dg/analyzer/pr98628.c: New test.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a
  2021-01-11 17:23 [Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040 ortmann at posteo dot de
                   ` (3 preceding siblings ...)
  2021-01-12  1:29 ` cvs-commit at gcc dot gnu.org
@ 2021-01-12  2:12 ` dmalcolm at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: dmalcolm at gcc dot gnu.org @ 2021-01-12  2:12 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

David Malcolm <dmalcolm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Should be fixed by the above commit.

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2021-01-12  2:12 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-11 17:23 [Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040 ortmann at posteo dot de
2021-01-11 17:26 ` [Bug analyzer/98628] " ortmann at posteo dot de
2021-01-11 18:30 ` [Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a marxin at gcc dot gnu.org
2021-01-11 19:50 ` dmalcolm at gcc dot gnu.org
2021-01-12  1:29 ` cvs-commit at gcc dot gnu.org
2021-01-12  2:12 ` dmalcolm at gcc dot gnu.org

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