[Bug tree-optimization/97767] New: [11 Regression] ICE in extract_range_basic, at vr-values.c:1445

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97767

            Bug ID: 97767
           Summary: [11 Regression] ICE in extract_range_basic, at
                    vr-values.c:1445
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---

g++-11.0.0-alpha20201101 snapshot (g:590febb5f6624f78b36402a7c9a9c318978f1efa)
ICEs when compiling gcc/testsuite/gcc.dg/builtins-66.c w/ -O1 -fstrict-enums
-ftree-vrp:

% g++-11.0.0 -O1 -fstrict-enums -ftree-vrp -c
gcc/testsuite/gcc.dg/builtins-66.c
during GIMPLE pass: evrp
gcc/testsuite/gcc.dg/builtins-66.c: In function 'int foo()':
gcc/testsuite/gcc.dg/builtins-66.c:9:1: internal compiler error: in
extract_range_basic, at vr-values.c:1445
    9 | }
      | ^
0x7fa858 vr_values::extract_range_basic(value_range_equiv*, gimple*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/vr-values.c:1445
0x19d1bf5 evrp_range_analyzer::record_ranges_from_stmt(gimple*, bool)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/gimple-ssa-evrp-analyze.c:304
0x11cd124 substitute_and_fold_dom_walker::before_dom_children(basic_block_def*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/tree-ssa-propagate.c:1099
0x199be37 dom_walker::walk(basic_block_def*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/domwalk.c:309
0x11cc1b7 substitute_and_fold_engine::substitute_and_fold(basic_block_def*)
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/tree-ssa-propagate.c:1283
0x19cfabe execute_early_vrp
       
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201101/work/gcc-11-20201101/gcc/gimple-ssa-evrp.c:349