Richard Henderson ff7a1eb0a1 host-utils: Improve mulu64 and muls64 ...

The new formulation makes better use of add-with-carry type insns
that the host may have.  Use gcc's sign adjustment trick to avoid
having to perform a 128-bit negation.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

2013-02-17 14:28:58 +00:00

2.5 KiB

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