https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100201
--- Comment #2 from Alex Coplan <acoplan at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #1)
> Can you please show back-trace (export UBSAN_OPTIONS="print_stacktrace=1")?
I didn't know ubsan did that, thanks! Here is the backtrace:
/home/alecop01/toolchain/src/gcc/gcc/poly-int.h:1095:5: runtime error: signed
integer overflow: -8846744073709551616 * 8 cannot be represented in type 'long
int'
#0 0x26a75c0 in poly_int<2u, poly_result<long, if_nonpoly<int, int,
poly_int_traits<int>::is_poly>::type, poly_coeff_pair_traits<long,
if_nonpoly<int, int, poly_int_traits<int>::is_poly>::type>::result_kind>::type>
operator*<2u, long, int>(poly_int_pod<2u, long> const&, int const&)
/home/alecop01/toolchain/src/gcc/gcc/poly-int.h:1095
#1 0x26a75c0 in fully_constant_vn_reference_p(vn_reference_s*)
/home/alecop01/toolchain/src/gcc/gcc/tree-ssa-sccvn.c:1540
#2 0x26d45e0 in vn_reference_lookup(tree_node*, tree_node*, vn_lookup_kind,
vn_reference_s**, bool, tree_node**, tree_node*)
/home/alecop01/toolchain/src/gcc/gcc/tree-ssa-sccvn.c:3596
#3 0x26e5378 in visit_reference_op_load
/home/alecop01/toolchain/src/gcc/gcc/tree-ssa-sccvn.c:5061
#4 0x26e5378 in visit_stmt
/home/alecop01/toolchain/src/gcc/gcc/tree-ssa-sccvn.c:5501
#5 0x26e7d94 in process_bb
/home/alecop01/toolchain/src/gcc/gcc/tree-ssa-sccvn.c:7201
#6 0x26edfa4 in do_rpo_vn
/home/alecop01/toolchain/src/gcc/gcc/tree-ssa-sccvn.c:7800
#7 0x26f5c54 in execute
/home/alecop01/toolchain/src/gcc/gcc/tree-ssa-sccvn.c:7954
#8 0x1b5ec1c in execute_one_pass(opt_pass*)
/home/alecop01/toolchain/src/gcc/gcc/passes.c:2567
#9 0x1b623b8 in execute_pass_list_1
/home/alecop01/toolchain/src/gcc/gcc/passes.c:2656
#10 0x1b623f0 in execute_pass_list_1
/home/alecop01/toolchain/src/gcc/gcc/passes.c:2657
#11 0x1b624d4 in execute_pass_list(function*, opt_pass*)
/home/alecop01/toolchain/src/gcc/gcc/passes.c:2667
#12 0xc7b2a4 in cgraph_node::expand()
/home/alecop01/toolchain/src/gcc/gcc/cgraphunit.c:1830
#13 0xc7ff24 in expand_all_functions
/home/alecop01/toolchain/src/gcc/gcc/cgraphunit.c:1994
#14 0xc7ff24 in symbol_table::compile()
/home/alecop01/toolchain/src/gcc/gcc/cgraphunit.c:2358
#15 0xc8b81c in symbol_table::compile()
/home/alecop01/toolchain/src/gcc/gcc/cgraphunit.c:2271
#16 0xc8b81c in symbol_table::finalize_compilation_unit()
/home/alecop01/toolchain/src/gcc/gcc/cgraphunit.c:2539
#17 0x1f97478 in compile_file
/home/alecop01/toolchain/src/gcc/gcc/toplev.c:482
#18 0x68d9b0 in do_compile
/home/alecop01/toolchain/src/gcc/gcc/toplev.c:2201
#19 0x68d9b0 in toplev::main(int, char**)
/home/alecop01/toolchain/src/gcc/gcc/toplev.c:2340
#20 0x6910d0 in main /home/alecop01/toolchain/src/gcc/gcc/main.c:39
#21 0xffffa682f6dc in __libc_start_main
(/lib/aarch64-linux-gnu/libc.so.6+0x206dc)
#22 0x691b2c (/data/alecop01/builds/bstrap-ubsan/gcc/cc1+0x691b2c)
