https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90242
--- Comment #4 from Sam James <sjames at gcc dot gnu.org> ---
$ gcc -c ./gcc/testsuite/c-c++-common/Warray-bounds.c -g -O2
/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/poly-int.h:502:21:
runtime error: signed integer overflow: 9223372036854775804 + 4 cannot be
represented in type 'long int'
#0 0x55b988111824 in poly_int<1u, long>& poly_int<1u,
long>::operator+=<long>(poly_int<1u, long> const&)
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/poly-int.h:502
#1 0x55b988111824 in vn_reference_compute_hash
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/tree-ssa-sccvn.cc:733
#2 0x55b988158458 in vn_reference_lookup(tree_node*, tree_node*,
vn_lookup_kind, vn_reference_s**, bool, tree_node**, tree_node*, bool)
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/tree-ssa-sccvn.cc:4097
#3 0x55b9881651a4 in visit_reference_op_load
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/tree-ssa-sccvn.cc:5873
#4 0x55b9881651a4 in visit_stmt
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/tree-ssa-sccvn.cc:6391
#5 0x55b988167376 in process_bb
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/tree-ssa-sccvn.cc:8243
#6 0x55b98816d18e in do_rpo_vn_1
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/tree-ssa-sccvn.cc:8716
#7 0x55b988179363 in execute
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/tree-ssa-sccvn.cc:8990
#8 0x55b9870d0730 in execute_one_pass(opt_pass*)
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/passes.cc:2648
#9 0x55b9870d35b0 in execute_pass_list_1
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/passes.cc:2757
#10 0x55b9870d35f7 in execute_pass_list_1
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/passes.cc:2758
#11 0x55b9870d36bc in execute_pass_list(function*, opt_pass*)
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/passes.cc:2768
#12 0x55b9870d7a76 in do_per_function_toporder(void (*)(function*, void*),
void*) /usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/passes.cc:1782
#13 0x55b9870d814b in do_per_function_toporder(void (*)(function*, void*),
void*) /usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/plugin.h:194
#14 0x55b9870d814b in execute_ipa_pass_list(opt_pass*)
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/passes.cc:3106
#15 0x55b985d0a224 in ipa_passes
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/cgraphunit.cc:2228
#16 0x55b985d0a224 in symbol_table::compile()
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/cgraphunit.cc:2351
#17 0x55b985d0cf30 in symbol_table::compile()
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/cgraphunit.cc:2329
#18 0x55b985d0cf30 in symbol_table::finalize_compilation_unit()
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/cgraphunit.cc:2608
#19 0x55b9877476d0 in compile_file
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/toplev.cc:480
#20 0x55b9854db054 in do_compile
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/toplev.cc:2220
#21 0x55b9854db054 in toplev::main(int, char**)
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/toplev.cc:2383
#22 0x55b9854de864 in main
/usr/src/debug/sys-devel/gcc-16.0.9999/gcc-16.0.9999/gcc/main.cc:39
#23 0x7faf0f0277ca (/usr/lib64/libc.so.6+0x277ca)
#24 0x7faf0f027879 in __libc_start_main (/usr/lib64/libc.so.6+0x27879)
#25 0x55b9854ded64 in _start
(/usr/libexec/gcc/x86_64-pc-linux-gnu/16/cc1+0x7372d64)
[...]
(In reply to David Binderman from comment #0)
> ./c-c++-common/Warray-bounds.c, with flags -g -O3 -march=native -Wall, I got
FWIW, while it didn't matter here, you should share expanded -march=native or
reduce whatever -march=native expands to (even better), otherwise it's not very
meaningful on someone else's machine ;)
