[Bug tree-optimization/113735] New: ICE: in operator[], at vec.h:910 with _BitInt() at -O and above

["zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113735

            Bug ID: 113735
           Summary: ICE: in operator[], at vec.h:910 with _BitInt() at -O
                    and above
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu

Created attachment 57302
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57302&action=edit
reduced testcase

Compiler output:
$ x86_64-pc-linux-gnu-gcc -O testcase.c
during GIMPLE pass: bitintlower
testcase.c: In function 'foo':
testcase.c:4:1: internal compiler error: in operator[], at vec.h:910
    4 | foo (_BitInt(6110) j)
      | ^~~
0x8a2ed8 vec<tree_node*, va_gc, vl_embed>::operator[](unsigned int)
        /repo/gcc-trunk/gcc/vec.h:910
0x8a30be vec<equiv_chain*, va_heap, vl_embed>::operator[](unsigned int)
        /repo/gcc-trunk/gcc/value-relation.cc:736
0x8a30be vec<equiv_chain*, va_heap, vl_ptr>::operator[](unsigned int)
        /repo/gcc-trunk/gcc/vec.h:1599
0x8a30be equiv_oracle::add_equiv_to_block(basic_block_def*, bitmap_head*)
        /repo/gcc-trunk/gcc/value-relation.cc:721
0x1868312 equiv_oracle::register_relation(basic_block_def*, relation_kind_t,
tree_node*, tree_node*)
        /repo/gcc-trunk/gcc/value-relation.cc:675
0x2741a67 fold_using_range::range_of_phi(vrange&, gphi*, fur_source&)
        /repo/gcc-trunk/gcc/gimple-range-fold.cc:932
0x27458f0 fold_using_range::fold_stmt(vrange&, gimple*, fur_source&,
tree_node*)
        /repo/gcc-trunk/gcc/gimple-range-fold.cc:604
0x272c929 gimple_ranger::fold_range_internal(vrange&, gimple*, tree_node*)
        /repo/gcc-trunk/gcc/gimple-range.cc:265
0x272c929 gimple_ranger::prefill_stmt_dependencies(tree_node*)
        /repo/gcc-trunk/gcc/gimple-range.cc:404
0x272d9ca gimple_ranger::range_of_stmt(vrange&, gimple*, tree_node*)
        /repo/gcc-trunk/gcc/gimple-range.cc:322
0x27315aa gimple_ranger::range_of_expr(vrange&, tree_node*, gimple*)
        /repo/gcc-trunk/gcc/gimple-range.cc:134
0x27077e2 range_to_prec
        /repo/gcc-trunk/gcc/gimple-lower-bitint.cc:2008
0x270c7e0 handle_operand_addr
        /repo/gcc-trunk/gcc/gimple-lower-bitint.cc:2211
0x270cbe7 lower_muldiv_stmt
        /repo/gcc-trunk/gcc/gimple-lower-bitint.cc:3403
0x2720eb9 gimple_lower_bitint
        /repo/gcc-trunk/gcc/gimple-lower-bitint.cc:6575
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-8771-20240203001826-g4b7d4d8a4af-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-8771-20240203001826-g4b7d4d8a4af-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240203 (experimental) (GCC)