Matt Pharr f4df2fb176 Improvements to mask update code for generic targets. ...

Rather than XOR'ing with a temporary 'all-on' vector, we call
__not.  Also, we call out to __and_not1 and __and_not2, for an
AND where the first or second operand, respectively, has had
NOT applied to it.

2012-05-16 13:52:51 -07:00

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