♻️ use different index SIMD dtype #11
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jvdd
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Dec 28, 2022
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| // https://stackoverflow.com/a/3793950 | ||
| #[cfg(target_arch = "x86_64")] | ||
| const MAX_INDEX: usize = 1 << f64::MANTISSA_DIGITS; | ||
| #[cfg(target_arch = "x86")] // https://stackoverflow.com/a/29592369 | ||
| const MAX_INDEX: usize = u32::MAX as usize; |
|
Changed this to draft as this is less a priority at the moment. |
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This PR handles the index as a different SIMD dtype (ideally unsigned int) in the inner SIMD loop.
=> this should result in fewer exits of this loop to the surrounding "overflow-safe" code.
First benchmarking results show that the added performance gain is neglectable..
If this also shows minor / no improvements, than I'd rather not merge this PR (as it is not worth the added complexity).