Okay heres a compiler bug I found while bringing my system back to life. Compiling
inn-2.3.1 from netbsd pkgsrc using the NetBSD 1.5 gcc.

# cc -DINET6 -O2 -I../include    -c art.c
art.c: In function `ARTpropagate':
art.c:1569: internal error--insn does not satisfy its constraints:
(insn:HI 28 982 985 (set (reg:SI 9 r9)
        (plus:SI (mult:SI (reg:SI 9 r9)
                (reg:SI 9 r9))
            (reg:SI 8 r8))) 44 {*mulsi3addsi} (insn_list 24 (insn_list 21 (nil)))
    (nil))
/usr/src/netbsd/gnu/usr.bin/egcs/common/../../../dist/gcc/toplev.c:1369: Internal compiler error in function fatal_insn

#

This is innd/art.c which is unpatched from the standard inn-2.3.1 distribution.

Mike