[Bug bootstrap/107299] [13 regression] ICE in stage 1 after r13-3307-g8efc38347a7444

["redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107299

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I can build trunk without --enable-checking=release now, but I get some FAILs
in the libstdc++ testsuite:

during GIMPLE pass: threadfull
/home/test/src/gcc/libstdc++-v3/testsuite/20_util/to_chars/float128_c++23.cc:
In function 'void test(std::chars_format)':
/home/test/src/gcc/libstdc++-v3/testsuite/20_util/to_chars/float128_c++23.cc:34:
internal compiler error: in fold_stmt, at gimple-range-fold.cc:522
0x11ed1b03 fold_using_range::fold_stmt(vrange&, gimple*, fur_source&,
tree_node*)
        /home/test/src/gcc/gcc/gimple-range-fold.cc:522
0x11ebd503 gimple_ranger::fold_range_internal(vrange&, gimple*, tree_node*)
        /home/test/src/gcc/gcc/gimple-range.cc:257
0x11ebd503 gimple_ranger::range_of_stmt(vrange&, gimple*, tree_node*)
        /home/test/src/gcc/gcc/gimple-range.cc:318
0x11ebb64f gimple_ranger::range_on_entry(vrange&, basic_block_def*, tree_node*)
        /home/test/src/gcc/gcc/gimple-range.cc:153
0x112368c3 path_range_query::range_on_path_entry(vrange&, tree_node*)
        /home/test/src/gcc/gcc/gimple-range-path.cc:160
0x11238063 path_range_query::internal_range_of_expr(vrange&, tree_node*,
gimple*)
        /home/test/src/gcc/gcc/gimple-range-path.cc:176
0x112382b7 path_range_query::range_of_expr(vrange&, tree_node*, gimple*)
        /home/test/src/gcc/gcc/gimple-range-path.cc:202
0x11ecb723 fur_stmt::get_operand(vrange&, tree_node*)
        /home/test/src/gcc/gcc/gimple-range-fold.cc:157
0x11ecf48f fold_using_range::range_of_range_op(vrange&,
gimple_range_op_handler&, fur_source&)
        /home/test/src/gcc/gcc/gimple-range-fold.cc:577
0x11ed1a03 fold_using_range::fold_stmt(vrange&, gimple*, fur_source&,
tree_node*)
        /home/test/src/gcc/gcc/gimple-range-fold.cc:489
0x11237733 path_range_query::range_of_stmt(vrange&, gimple*, tree_node*)
        /home/test/src/gcc/gcc/gimple-range-path.cc:721
0x112f0db3 back_threader::find_taken_edge_cond(vec<basic_block_def*, va_heap,
vl_ptr> const&, gcond*)
        /home/test/src/gcc/gcc/tree-ssa-threadbackward.cc:325
0x112f1087 back_threader::maybe_register_path(back_threader_profitability&)
        /home/test/src/gcc/gcc/tree-ssa-threadbackward.cc:248
0x112f1503 back_threader::find_paths_to_names(basic_block_def*, bitmap_head*,
unsigned int, back_threader_profitability&)
        /home/test/src/gcc/gcc/tree-ssa-threadbackward.cc:371
0x112f1b27 back_threader::find_paths_to_names(basic_block_def*, bitmap_head*,
unsigned int, back_threader_profitability&)
        /home/test/src/gcc/gcc/tree-ssa-threadbackward.cc:479
0x112f282b back_threader::maybe_thread_block(basic_block_def*)
        /home/test/src/gcc/gcc/tree-ssa-threadbackward.cc:551
0x112f2a73 back_threader::thread_blocks()
        /home/test/src/gcc/gcc/tree-ssa-threadbackward.cc:975
0x112f2b83 execute
        /home/test/src/gcc/gcc/tree-ssa-threadbackward.cc:1105
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compiler exited with status 1
FAIL: 20_util/to_chars/float128_c++23.cc (test for excess errors)