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Revision ff7a1eb0

IDff7a1eb0a1262f7d451cc1e70c65dd23771ce2a2

Added by Richard Henderson about 11 years ago

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 <>
Signed-off-by: Blue Swirl <>

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