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From: "asolokha at gmx dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/106027] New: ICE: 'verify_gimple' failed
 (error: mismatching comparison operand types)
Date: Sun, 19 Jun 2022 05:22:40 +0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106027

            Bug ID: 106027
           Summary: ICE: 'verify_gimple' failed (error: mismatching
                    comparison operand types)
           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: ---

gcc 13.0.0 20220612 snapshot (g:add1adaa17a294ea25918ffb4fdd40f115362632) I=
CEs
when compiling the following testcase w/ -O1:

int
foo (unsigned int x, int y)
{
  return x <=3D (((y !=3D y) < 0) ? y < 1 : 0);
}

% gcc-13.0.0 -O1 -c lxx02x06.c
lxx02x06.c: In function 'foo':
lxx02x06.c:2:1: error: mismatching comparison operand types
    2 | foo (unsigned int x, int y)
      | ^~~
unsigned int
int
_1 =3D x <=3D 0;
lxx02x06.c:2:1: internal compiler error: 'verify_gimple' failed
0xf2b0cd verify_gimple_in_seq(gimple*)
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220612/work/gcc-13-20220612/gcc/tr=
ee-cfg.cc:5217
0xc0fb85 gimplify_body(tree_node*, bool)
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220612/work/gcc-13-20220612/gcc/gi=
mplify.cc:16543
0xc0fd4c gimplify_function_tree(tree_node*)
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220612/work/gcc-13-20220612/gcc/gi=
mplify.cc:16614
0xa26c47 cgraph_node::analyze()
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220612/work/gcc-13-20220612/gcc/cg=
raphunit.cc:676
0xa297a7 analyze_functions
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220612/work/gcc-13-20220612/gcc/cg=
raphunit.cc:1241
0xa2a44d symbol_table::finalize_compilation_unit()
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220612/work/gcc-13-20220612/gcc/cg=
raphunit.cc:2501=