[Bug analyzer/93779] New: ICE: unhandled tree code in region_model::get_lvalue_1: 'function_decl'

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93779

            Bug ID: 93779
           Summary: ICE: unhandled tree code in
                    region_model::get_lvalue_1: 'function_decl'
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: analyzer
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---

gfortran-10.0.1-alpha20200216 snapshot
(g:6e37e49616d429c5d922324ebd72ae95f12a079f) ICEs when compiling
gcc/testsuite/gfortran.fortran-torture/compile/pr88304-2.f90 w/ -O1 -fanalyzer:

% powerpc-e300c3-linux-gnu-gfortran-10.0.1 -O1 -fanalyzer -c
gcc/testsuite/gfortran.fortran-torture/compile/pr88304-2.f90
during IPA pass: analyzer                                                       
gcc/testsuite/gfortran.fortran-torture/compile/pr88304-2.f90:25:0:

   25 |       q = foo (p, r(u), w = baz)
      | 
internal compiler error: unhandled tree code in region_model::get_lvalue_1:
'function_decl'
0x126e32d ana::region_model::get_lvalue_1(ana::path_var,
ana::region_model_context*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/region-model.cc:4644
0x126e413 ana::region_model::get_lvalue(ana::path_var,
ana::region_model_context*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/region-model.cc:4774
0x1275e96 ana::region_model::on_assignment(gassign const*,
ana::region_model_context*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/region-model.cc:3941
0x124cf77 ana::exploded_node::on_stmt(ana::exploded_graph&, ana::supernode
const*, gimple const*, ana::program_state*, ana::state_change*) const
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/engine.cc:971
0x124d929 ana::exploded_graph::process_node(ana::exploded_node*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/engine.cc:2449
0x124ddd2 ana::exploded_graph::process_worklist()
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/engine.cc:2267
0x124f94a ana::impl_run_checkers(ana::logger*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/engine.cc:3627
0x1250f11 ana::run_checkers()
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/engine.cc:3684
0x1245568 execute
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.1_alpha20200216/work/gcc-10-20200216/gcc/analyzer/analyzer-pass.cc:84

(While my target here is powerpc, the ICE is not target-specific.)