[Bug ipa/97698] New: [11 Regression] ICE: Segmentation fault (in duplicate_thunk_for_node)

[Bug ipa/97698] New: [11 Regression] ICE: Segmentation fault (in duplicate_thunk_for_node)

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97698

            Bug ID: 97698
           Summary: [11 Regression] ICE: Segmentation fault (in
                    duplicate_thunk_for_node)
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
                CC: marxin at gcc dot gnu.org
  Target Milestone: ---

g++-11.0.0-alpha20201101 snapshot (g:590febb5f6624f78b36402a7c9a9c318978f1efa)
ICEs when compiling gcc/testsuite/g++.dg/torture/pr83619.C w/ -O3 --param
ipa-cp-eval-threshold=30:

% g++-11.0.0 -O3 --param ipa-cp-eval-threshold=30 -c
gcc/testsuite/g++.dg/torture/pr83619.C
during IPA pass: cp
gcc/testsuite/g++.dg/torture/pr83619.C:64:1: internal compiler error:
Segmentation fault
   64 | }
      | ^
0x102afef crash_signal
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/toplev.c:330
0xbeaad8 duplicate_thunk_for_node
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/cgraphclones.c:242
0xbeaca7 cgraph_edge::redirect_callee_duplicating_thunks(cgraph_node*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/cgraphclones.c:265
0xbeb0e1 cgraph_node::create_clone(tree_node*, profile_count, bool,
vec<cgraph_edge*, va_heap, vl_ptr>, bool, cgraph_node*, ipa_param_adjustments*,
char const*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/cgraphclones.c:429
0xbeb9e7 cgraph_node::create_virtual_clone(vec<cgraph_edge*, va_heap, vl_ptr>,
vec<ipa_replace_map*, va_gc, vl_embed>*, ipa_param_adjustments*, char const*,
unsigned int)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/cgraphclones.c:615
0x1a3a766 create_specialized_node
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/ipa-cp.c:4576
0x1a3dddd decide_about_value<ipa_polymorphic_call_context>
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/ipa-cp.c:5514
0x1a3dddd decide_whether_version_node
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/ipa-cp.c:5579
0x1a3ed27 ipcp_decision_stage
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/ipa-cp.c:5732
0x1a3ed27 ipcp_driver
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/ipa-cp.c:5919
0x1a3ed27 execute
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/ipa-cp.c:5994

[Bug ipa/97698] [11 Regression] ICE: Segmentation fault (in duplicate_thunk_for_node) since r11-4587-gae7a23a3fab74

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97698

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2020-11-03
            Summary|[11 Regression] ICE:        |[11 Regression] ICE:
                   |Segmentation fault (in      |Segmentation fault (in
                   |duplicate_thunk_for_node)   |duplicate_thunk_for_node)
                   |                            |since
                   |                            |r11-4587-gae7a23a3fab74
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
                 CC|                            |hubicka at gcc dot gnu.org
           Priority|P3                          |P1
      Known to work|                            |10.2.0
   Target Milestone|---                         |11.0
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=97695
      Known to fail|                            |11.0

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r11-4587-gae7a23a3fab74.

[Bug ipa/97698] [11 Regression] ICE: Segmentation fault (in duplicate_thunk_for_node) since r11-4587-gae7a23a3fab74

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97698

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jan Hubicka <hubicka@gcc.gnu.org>:

https://gcc.gnu.org/g:a2058f5812bea3673859a68f9bfea61dbce6730f

commit r11-4692-ga2058f5812bea3673859a68f9bfea61dbce6730f
Author: Jan Hubicka <jh@suse.cz>
Date:   Tue Nov 3 20:31:23 2020 +0100

    Add missing non-NULL check in cgraphclones

    2020-11-03  Jan Hubicka  <hubicka@ucw.cz>

            PR ipa/97698
            * cgraphclones.c (duplicate_thunk_for_node): Check that info is
            non-NULL.

[Bug ipa/97698] [11 Regression] ICE: Segmentation fault (in duplicate_thunk_for_node) since r11-4587-gae7a23a3fab74

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97698

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

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

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Fixed.