This patch caused a bootstrap failure on AIX.
during GIMPLE pass: evrp
/nasfarm/edelsohn/src/src/libgcc/libgcc2.c: In function '__gcc_bcmp':
/nasfarm/edelsohn/src/src/libgcc/libgcc2.c:2910:1: internal compiler error:
in get_irange, at value-range-storage.cc:343
2910 | }
| ^
0x11b7f4b7 irange_storage::get_irange(irange&, tree_node*) const
/nasfarm/edelsohn/src/src/gcc/value-range-storage.cc:343
0x11b7e7af vrange_storage::get_vrange(vrange&, tree_node*) const
/nasfarm/edelsohn/src/src/gcc/value-range-storage.cc:178
0x139f3d77 range_info_get_range(tree_node const*, vrange&)
/nasfarm/edelsohn/src/src/gcc/tree-ssanames.cc:118
0x1134b463 set_range_info(tree_node*, vrange const&)
/nasfarm/edelsohn/src/src/gcc/tree-ssanames.cc:425
0x116a7333 gimple_ranger::register_inferred_ranges(gimple*)
/nasfarm/edelsohn/src/src/gcc/gimple-range.cc:487
0x125cef27 rvrp_folder::fold_stmt(gimple_stmt_iterator*)
/nasfarm/edelsohn/src/src/gcc/tree-vrp.cc:1033
0x123dd063
substitute_and_fold_dom_walker::before_dom_children(basic_block_def*)
/nasfarm/edelsohn/src/src/gcc/tree-ssa-propagate.cc:876
0x1176cc43 dom_walker::walk(basic_block_def*)
/nasfarm/edelsohn/src/src/gcc/domwalk.cc:311
0x123dd733 substitute_and_fold_engine::substitute_and_fold(basic_block_def*)
/nasfarm/edelsohn/src/src/gcc/tree-ssa-propagate.cc:999
0x123d0f5f execute_ranger_vrp(function*, bool, bool)
/nasfarm/edelsohn/src/src/gcc/tree-vrp.cc:1062
0x123d14ef execute
/nasfarm/edelsohn/src/src/gcc/tree-vrp.cc:1142
