[Bug ipa/103155] New: [12 Regression] ICE in get_expr_operands, at tree-ssa-operands.c:813

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103155

            Bug ID: 103155
           Summary: [12 Regression] ICE in get_expr_operands, at
                    tree-ssa-operands.c:813
           Product: gcc
           Version: 12.0
            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: ---

Created attachment 51755
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51755&action=edit
Partially reduced testcase

g++-12.0.0-alpha20211107 snapshot (g:962ff7d2849e1fa6a1fe0535aa2dec5c2b9a32a6)
ICEs when compiling the following line, extracted from
libstdc++-v3/testsuite/performance/ext/pb_ds/priority_queue_text_pop_mem.cc, w/
-std=c++20 -O3 -fopenacc -g --param ipa-cp-eval-threshold=0
-Ilibstdc++-v3/testsuite/util:

#include <performance/priority_queue/mem_usage/pop_test.hpp>

% g++-12.0.0 -std=c++20 -O3 -fopenacc -g --param ipa-cp-eval-threshold=0
-Ilibstdc++-v3/testsuite/util -c tvl87d85.cc
during IPA pass: inline
In function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::pointer
std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>::_M_create(std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>::size_type&, std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>::size_type) [with _CharT = char; _Traits = std::char_traits<char>;
_Alloc = std::allocator<char>]':
cc1plus: internal compiler error: in get_expr_operands, at
tree-ssa-operands.c:813
0x839310 operands_scanner::get_expr_operands(tree_node**, int)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-ssa-operands.c:813
0x13198e9 operands_scanner::get_expr_operands(tree_node**, int)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-ssa-operands.c:834
0x131a53f operands_scanner::parse_ssa_operands()
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-ssa-operands.c:990
0x131b3eb operands_scanner::build_ssa_operands()
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-ssa-operands.c:1005
0x131b4ff update_stmt_operands(function*, gimple*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-ssa-operands.c:1147
0xe52a56 update_stmt_if_modified
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/gimple-ssa.h:185
0xe52a56 update_stmt_if_modified
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/gimple-ssa.h:182
0xe52a56 update_modified_stmt
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/gimple-iterator.c:44
0xe52a56 gsi_insert_after(gimple_stmt_iterator*, gimple*, gsi_iterator_update)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/gimple-iterator.c:544
0xe4932f gimple_seq_add_stmt(gimple**, gimple*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/gimple.c:1315
0x11fe566 remap_gimple_stmt
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-inline.c:2014
0x1203003 copy_bb
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-inline.c:2054
0x1204622 copy_cfg_body
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-inline.c:3088
0x1204622 copy_body
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-inline.c:3341
0x1207693 tree_function_versioning(tree_node*, tree_node*,
vec<ipa_replace_map*, va_gc, vl_embed>*, ipa_param_adjustments*, bool,
bitmap_head*, basic_block_def*)
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/tree-inline.c:6369
0xcdf5ec cgraph_node::materialize_clone()
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/cgraphclones.c:1141
0xccd8a5 cgraph_node::get_untransformed_body()
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/cgraph.c:3907
0xcdf47f cgraph_node::materialize_clone()
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/cgraphclones.c:1111
0xccd8a5 cgraph_node::get_untransformed_body()
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/cgraph.c:3907
0xf28857 maybe_materialize_called_clones
       
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211107/work/gcc-12-20211107/gcc/ipa-inline-transform.c:720

Partially reduced contents of that file is in attachment.