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* Fix a double-rounding bug in fma{,f,l}. The bug would occur indas2011-10-151-9/+29
| | | | | | | | | | round-to-nearest mode when the result, rounded to twice machine precision, was exactly halfway between two machine-precision values. The essence of the fix is to simulate a "sticky bit" in the pathological cases, which is how hardware implementations break the ties. MFC after: 1 month
* Include math.h for the fmaf() prototype.das2008-03-291-0/+2
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* Add fma() and fmaf(), which implement a fused multiply-add operation.das2005-01-221-0/+47
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