Lines Matching defs:mantissa

823   // Extract the mantissa by clearing the top 12 bits (sign + exponent).
824   uint64_t mantissa = (I & (~0ULL >> 12)) | 1ULL << 52;
826   // If the exponent doesn't shift all bits out of the mantissa
828     return isNeg ? -APInt(width, mantissa >> (52 - exp)) :
829                     APInt(width, mantissa >> (52 - exp));
831   // If the client didn't provide enough bits for us to shift the mantissa into
836   // Otherwise, we have to shift the mantissa bits up to the right location
837   APInt Tmp(width, mantissa);
884   // Number of bits in mantissa is 52. To obtain the mantissa value, we must
886   uint64_t mantissa;
889     mantissa = Tmp.U.pVal[0];
891       mantissa >>= n - 52; // shift down, we want the top 52 bits.
896     mantissa = hibits | lobits;
899   // The leading bit of mantissa is implicit, so get rid of it.
901   uint64_t I = sign | (exp << 52) | mantissa;