https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107982
Bug ID: 107982 Summary: ICE in in lower_bound, at value-range.h:350 Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: anlauf at gcc dot gnu.org Target Milestone: --- Created attachment 54022 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54022&action=edit Reproducer This appears to be a recent regression. The testcase is reduced from SLATEC. ICEs with -O2, -O3 on x86_64-pc-linux-gnu, but succeeds with -O0, -O1, -Os. during GIMPLE pass: dom gfcbug156.f90:1:19: 1 | SUBROUTINE TQLRAT (N, D, E2, IERR) | ^ internal compiler error: in lower_bound, at value-range.h:350 0x870e8c frange::lower_bound() const ../../gcc-trunk/gcc/value-range.h:350 0x1e6fd39 frange::lower_bound() const ../../gcc-trunk/gcc/range-op-float.cc:1927 0x1e6fd39 foperator_div::op2_range(frange&, tree_node*, frange const&, frange const&, relation_trio) const ../../gcc-trunk/gcc/range-op-float.cc:2328 0x1d4fc3c gori_compute::compute_operand2_range(vrange&, gimple_range_op_handler&, vrange const&, tree_node*, fur_source&, value_relation*) ../../gcc-trunk/gcc/gimple-range-gori.cc:1196 0x1d4e94e gori_compute::compute_operand_range(vrange&, gimple*, vrange const&, tree_node*, fur_source&, value_relation*) ../../gcc-trunk/gcc/gimple-range-gori.cc:694 0x1d4f40a gori_compute::compute_operand1_range(vrange&, gimple_range_op_handler&, vrange const&, tree_node*, fur_source&, value_relation*) ../../gcc-trunk/gcc/gimple-range-gori.cc:1150 0x1d4e9cd gori_compute::compute_operand_range(vrange&, gimple*, vrange const&, tree_node*, fur_source&, value_relation*) ../../gcc-trunk/gcc/gimple-range-gori.cc:692 0x1d4fcc3 gori_compute::compute_operand2_range(vrange&, gimple_range_op_handler&, vrange const&, tree_node*, fur_source&, value_relation*) ../../gcc-trunk/gcc/gimple-range-gori.cc:1243 0x1d4e94e gori_compute::compute_operand_range(vrange&, gimple*, vrange const&, tree_node*, fur_source&, value_relation*) ../../gcc-trunk/gcc/gimple-range-gori.cc:694 0x1d51c25 gori_compute::outgoing_edge_range_p(vrange&, edge_def*, tree_node*, range_query&) ../../gcc-trunk/gcc/gimple-range-gori.cc:1373 0x11473bf path_range_query::compute_ranges_in_block(basic_block_def*) ../../gcc-trunk/gcc/gimple-range-path.cc:454 0x1147a81 path_range_query::compute_ranges(bitmap_head const*) ../../gcc-trunk/gcc/gimple-range-path.cc:622 0x11cfb7d hybrid_jt_simplifier::simplify(gimple*, gimple*, basic_block_def*, jt_state*) ../../gcc-trunk/gcc/tree-ssa-threadedge.cc:1418 0x11cee4a jump_threader::simplify_control_stmt_condition(edge_def*, gimple*) ../../gcc-trunk/gcc/tree-ssa-threadedge.cc:385 0x11cf53a jump_threader::thread_through_normal_block(vec<jump_thread_edge*, va_heap, vl_ptr>*, edge_def*, bitmap_head*) ../../gcc-trunk/gcc/tree-ssa-threadedge.cc:951 0x11d0737 jump_threader::thread_through_normal_block(vec<jump_thread_edge*, va_heap, vl_ptr>*, edge_def*, bitmap_head*) ../../gcc-trunk/gcc/tree-ssa-threadedge.cc:1175 0x11d0737 jump_threader::thread_across_edge(edge_def*) ../../gcc-trunk/gcc/tree-ssa-threadedge.cc:1154 0x10c9624 dom_opt_dom_walker::after_dom_children(basic_block_def*) ../../gcc-trunk/gcc/tree-ssa-dom.cc:1725 0x1d07a8f dom_walker::walk(basic_block_def*) ../../gcc-trunk/gcc/domwalk.cc:354 0x10ce0d4 execute ../../gcc-trunk/gcc/tree-ssa-dom.cc:939 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.