[Bug analyzer/96860] New: [11 Regression] ICE in apply_ctor_to_region, at analyzer/store.cc:445

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96860

            Bug ID: 96860
           Summary: [11 Regression] ICE in apply_ctor_to_region, at
                    analyzer/store.cc:445
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: analyzer
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---
            Target: x86_64-pc-linux-gnu

gcc-11.0.0-alpha20200830 snapshot (g:6ccadc4c0486ff011a32c74de1a31148acb3cbe2)
ICEs when compiling the following testcase, reduced from
gcc/testsuite/gcc.c-torture/execute/pr89634.c, w/ -fanalyzer --param
analyzer-max-svalue-depth=0:

void
x7 (void)
{
  __int128 z5[] = {
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1,
  };
}

% x86_64-pc-linux-gnu-gcc-11.0.0 -fanalyzer --param analyzer-max-svalue-depth=0
-c z2ncgwrg.c
during IPA pass: analyzer
z2ncgwrg.c: In function 'x7':
z2ncgwrg.c:4:12: internal compiler error: in apply_ctor_to_region, at
analyzer/store.cc:445
    4 |   __int128 z5[] = {
      |            ^~
0x7244b1 ana::binding_map::apply_ctor_to_region(ana::region const*, tree_node*,
ana::region_model_manager*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/store.cc:445
0x110cea4 ana::decl_region::get_svalue_for_constructor(tree_node*,
ana::region_model_manager*) const
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/region.cc:907
0x1111db4 ana::region_model::get_store_value(ana::region const*) const
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/region-model.cc:1284
0x1113c6a ana::region_model::get_rvalue(tree_node*, ana::region_model_context*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/region-model.cc:1190
0x1116727 ana::region_model::on_assignment(gassign const*,
ana::region_model_context*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/region-model.cc:562
0x10f7532 ana::exploded_node::on_stmt(ana::exploded_graph&, ana::supernode
const*, gimple const*, ana::program_state*) const
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/engine.cc:1029
0x10f877d ana::exploded_graph::process_node(ana::exploded_node*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/engine.cc:2526
0x10f926a ana::exploded_graph::process_worklist()
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/engine.cc:2341
0x10fb39f ana::impl_run_checkers(ana::logger*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/engine.cc:4107
0x10fbfbc ana::run_checkers()
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/engine.cc:4175
0x10f0978 execute
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200830/work/gcc-11-20200830/gcc/analyzer/analyzer-pass.cc:84

It's also possible to trigger this ICE w/ -m32 when one replaces __int128 w/
long int in z5 declaration.