re: port-sparc/57594: openssl speed crashes on sparcv8

[matthew green <mrg%eterna.com.au@localhost>]

martin and i figured out what is going on here.

basically, the rd on sparc ends up reading from th %y register,
and if it just happens to have 0x99 value already, then the
test for v9 will false-positively pass and we fault.

must be something in newer openssl that ends up leaving %y with
0x99 and wasn't hit before, as this bug is old.


.mrg.