https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119921
Bug ID: 119921 Summary: [12/13/14/15/16 Regression] ICE building SVE ACLE in varasm Product: gcc Version: 13.3.1 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: tnfchris at gcc dot gnu.org Target Milestone: --- Target: aarch64* Created attachment 61193 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61193&action=edit sve-bug.ii The attached testcase when compiled with -O2 -march=armv8-a+sve2 ICEs with: sve-bug.ii:65:80: internal compiler error: in tree_to_uhwi, at tree.h:5020 65 | void bo() { bi<1>(1, 0, 1, 0, 1, 1, 1, 1, 1, 1, bn, reinterpret_cast<y *>(1)); } | ^ 0x2027bab internal_error(char const*, ...) ../../gcc/gcc/gcc/diagnostic-global-context.cc:517 0x7f6e6b fancy_abort(char const*, int, char const*) ../../gcc/gcc/gcc/diagnostic.cc:1749 0x1335073 tree_to_uhwi(tree_node const*) ../../gcc/gcc/gcc/tree.h:5020 0x1335073 assemble_variable_contents ../../gcc/gcc/gcc/varasm.cc:2425 0x133db7b assemble_variable(tree_node*, int, int, int) ../../gcc/gcc/gcc/varasm.cc:2619 0x13402a3 varpool_node::assemble_decl() ../../gcc/gcc/gcc/varpool.cc:596 0x13402a3 varpool_node::assemble_decl() ../../gcc/gcc/gcc/varpool.cc:564 0x1340d43 symbol_table::output_variables() ../../gcc/gcc/gcc/varpool.cc:764 0xb45f2f symbol_table::compile() ../../gcc/gcc/gcc/cgraphunit.cc:2421 0xb48647 symbol_table::compile() ../../gcc/gcc/gcc/cgraphunit.cc:2329 0xb48647 symbol_table::finalize_compilation_unit() ../../gcc/gcc/gcc/cgraphunit.cc:2607 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. It seems like something is assuming that the value fits in an HWI without checking first.