[Bug bootstrap/66038] [5 regression] (stage 2) build/genmatch segfaults in operand::gen_transform (gcc/hash-table.h:223)

[dougmencken at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66038

--- Comment #14 from Douglas Mencken <dougmencken at gmail dot com> ---
sizeof(hashval_t) = 4, CHAR_BIT = 8

Just checked it manually. Built with patch subset, genmatch problem is here
again. It isn't related to changes in hash_table_mod1 & hash_table_mod2.

What's left? abort() replaced by gcc_checking_assert()?