diff options
| -rw-r--r-- | Eigen/src/Core/arch/Default/Half.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Eigen/src/Core/arch/Default/Half.h b/Eigen/src/Core/arch/Default/Half.h index bbc15d463..60f19749b 100644 --- a/Eigen/src/Core/arch/Default/Half.h +++ b/Eigen/src/Core/arch/Default/Half.h @@ -472,7 +472,9 @@ EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC __half_raw float_to_half_rtne(float ff) { unsigned int mant_odd = (f.u >> 13) & 1; // resulting mantissa is odd // update exponent, rounding bias part 1 - f.u += ((unsigned int)(15 - 127) << 23) + 0xfff; + // Equivalent to `f.u += ((unsigned int)(15 - 127) << 23) + 0xfff`, but + // without arithmetic overflow. + f.u += 0xc8000fffU; // rounding bias part 2 f.u += mant_odd; // take the bits! |