Commit message (Collapse) | Author | Age | Files | Lines | |
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* | PowerPC: remove branch prediction from rint implementation | Adhemerval Zanella | 2013-04-01 | 1 | -0/+4 |
The branch prediction hints is actually hurts performance in this case. The assembly implementation make two assumptions: 1. 'fabs (x) < 2^52' is unlikely and 2. 'x > 0.0' is unlike (if 1. is true). Since it a general floating point function, expected input is not bounded and then it is better to let the hardware handle the branches. |