[Bug tree-optimization/107312] New: [13 Regression] ICE in verify_range, at value-range.cc:1172, called from range_true_and_false

["asolokha at gmx dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107312

            Bug ID: 107312
           Summary: [13 Regression] ICE in verify_range, at
                    value-range.cc:1172, called from range_true_and_false
           Product: gcc
           Version: 13.0
            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: ---
            Target: x86_64-pc-linux-gnu

gcc 13.0.0 20221016 snapshot (g:6366e3e8847af98d4728d55951534769d034d02a) ICEs
when compiling the following testcase, reduced from
gcc/testsuite/gcc.target/aarch64/sve/vcond_2_run.c, w/ -mavx512vbmi -O1
-ftree-loop-vectorize:

void
foo (_Float16 *r, short int *a)
{
  int i;

  for (i = 0; i < 32; ++i)
    r[i] = !!a[i];
}

% x86_64-pc-linux-gnu-gcc-13 -mavx512vbmi -O1 -ftree-loop-vectorize -c
ppt01ppy.c
during GIMPLE pass: dom
ppt01ppy.c: In function 'foo':
ppt01ppy.c:2:1: internal compiler error: in verify_range, at
value-range.cc:1172
    2 | foo (_Float16 *r, short int *a)
      | ^~~
0x7bcad5 irange::verify_range()
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/value-range.cc:1172
0x1e6740b range_true_and_false
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/range.h:53
0x1e68c07 operator_not_equal::fold_range(irange&, tree_node*, irange const&,
irange const&, relation_kind_t) const
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/range-op.cc:639
0x1d56084 fold_using_range::range_of_range_op(vrange&,
gimple_range_op_handler&, fur_source&)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/gimple-range-fold.cc:581
0x1d57a60 fold_using_range::fold_stmt(vrange&, gimple*, fur_source&,
tree_node*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/gimple-range-fold.cc:489
0x1d4a6d3 gimple_ranger::fold_range_internal(vrange&, gimple*, tree_node*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/gimple-range.cc:258
0x1d4a6d3 gimple_ranger::range_of_stmt(vrange&, gimple*, tree_node*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/gimple-range.cc:319
0x1d4b23a gimple_ranger::range_of_expr(vrange&, tree_node*, gimple*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/gimple-range.cc:126
0x1034a45 cprop_operand
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/tree-ssa-dom.cc:1968
0x1037232 cprop_into_stmt
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/tree-ssa-dom.cc:2045
0x1037232 dom_opt_dom_walker::optimize_stmt(basic_block_def*,
gimple_stmt_iterator*, bool*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/tree-ssa-dom.cc:2273
0x10382cc dom_opt_dom_walker::before_dom_children(basic_block_def*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/tree-ssa-dom.cc:1678
0x1d150ae dom_walker::walk(basic_block_def*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/domwalk.cc:311
0x1038dbc execute
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20221016/work/gcc-13-20221016/gcc/tree-ssa-dom.cc:939