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Oops, should be part of 41664; won't work very well without this piece.

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llvm-svn: 41665
This commit is contained in:
Dale Johannesen 2007-08-31 23:35:31 +00:00
parent b34e6b4898
commit b336f6207c
1 changed files with 38 additions and 0 deletions
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38
lib/Support/APFloat.cpp
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@ -1065,6 +1065,20 @@ APFloat::changeSign()
sign = !sign;
}
void
APFloat::clearSign()
{
/* So is this one. */
sign = 0;
}
void
APFloat::copySign(const APFloat &rhs)
{
/* And this one. */
sign = rhs.sign;
}
/* Normalized addition or subtraction. */
APFloat::opStatus
APFloat::addOrSubtract(const APFloat &rhs, roundingMode rounding_mode,
@ -1148,6 +1162,30 @@ APFloat::divide(const APFloat &rhs, roundingMode rounding_mode)
return fs;
}
/* Normalized remainder. */
APFloat::opStatus
APFloat::mod(const APFloat &rhs, roundingMode rounding_mode)
{
opStatus fs;
APFloat V = *this;
fs = V.divide(rhs, rmNearestTiesToEven);
if (fs == opDivByZero)
return fs;
integerPart x;
fs = V.convertToInteger(&x, integerPartWidth, true, rmNearestTiesToEven);
if (fs==opInvalidOp)
return fs;
fs = V.convertFromInteger(&x, integerPartWidth, true, rmNearestTiesToEven);
assert(fs==opOK); // should always work
fs = V.multiply(rhs, rounding_mode);
assert(fs==opOK); // should not overflow or underflow
fs = subtract(V, rounding_mode);
assert(fs==opOK);
return fs;
}
/* Normalized fused-multiply-add. */
APFloat::opStatus
APFloat::fusedMultiplyAdd(const APFloat &multiplicand,