https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87059
--- Comment #17 from H.J. Lu <hjl.tools at gmail dot com> ---
On x86-64:
[hjl@gnu-cfl-1 gcc]$ cat x.c
int a, b;
void
c(void) {
if (b)
b = a / b;
}
[hjl@gnu-cfl-1 gcc]$ ./xgcc -B./ -O3 -funroll-loops -ffast-math -fwrapv -S x.c
during GIMPLE pass: evrp
x.c: In function ‘c’:
x.c:7:1: internal compiler error: Segmentation fault
7 | }
| ^
0x102b902 crash_signal
/export/gnu/import/git/sources/gcc/gcc/toplev.c:325
0xb3e3b2 generic_wide_int<wide_int_ref_storage<false, true> >::elt(unsigned
int) const
/export/gnu/import/git/sources/gcc/gcc/wide-int.h:908
0x13b04cf wide_int_to_tree_1
/export/gnu/import/git/sources/gcc/gcc/tree.c:1488
0x13b0edb wide_int_to_tree(tree_node*, poly_int<1u,
generic_wide_int<wide_int_ref_storage<false, true> > > const&)
/export/gnu/import/git/sources/gcc/gcc/tree.c:1676
0x1396b58 extract_range_from_binary_expr_1(value_range*, tree_code, tree_node*,
value_range*, value_range*)
/export/gnu/import/git/sources/gcc/gcc/tree-vrp.c:1675
0x1395921 extract_range_from_binary_expr_1(value_range*, tree_code, tree_node*,
value_range*, value_range*)
/export/gnu/import/git/sources/gcc/gcc/tree-vrp.c:1373
0x1445e2b vr_values::extract_range_from_binary_expr(value_range*, tree_code,
tree_node*, tree_node*, tree_node*)
/export/gnu/import/git/sources/gcc/gcc/vr-values.c:768
0x1448d02 vr_values::extract_range_from_assignment(value_range*, gassign*)
/export/gnu/import/git/sources/gcc/gcc/vr-values.c:1429
0x144a8f8 vr_values::vrp_visit_assignment_or_call(gimple*, tree_node**,
value_range*)
/export/gnu/import/git/sources/gcc/gcc/vr-values.c:2048
0x144c7d7 vr_values::extract_range_from_stmt(gimple*, edge_def**, tree_node**,
value_range*)
/export/gnu/import/git/sources/gcc/gcc/vr-values.c:2744
0x1c20820 evrp_range_analyzer::record_ranges_from_stmt(gimple*, bool)
/export/gnu/import/git/sources/gcc/gcc/gimple-ssa-evrp-analyze.c:293
0x1c1dfee evrp_dom_walker::before_dom_children(basic_block_def*)
/export/gnu/import/git/sources/gcc/gcc/gimple-ssa-evrp.c:139
0x1bece59 dom_walker::walk(basic_block_def*)
/export/gnu/import/git/sources/gcc/gcc/domwalk.c:353
0x1c1e791 execute_early_vrp
/export/gnu/import/git/sources/gcc/gcc/gimple-ssa-evrp.c:310
0x1c1e85c execute
/export/gnu/import/git/sources/gcc/gcc/gimple-ssa-evrp.c:347
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
[hjl@gnu-cfl-1 gcc]$
