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This change:
- Adds generic implementation of the float -> integer conversion
functions floatXiYf, including support for f80
- Updates the existing implementation of integer -> float conversion
fixXiYf to support f16 and f80
- Fixes the handling of the explicit integer bit in `__trunctfxf2`
- Combines the test cases for fixXfYi/floatXiYf into a single file
- Renames `fmodl` to `fmodq`, since it operates on 128-bit floats
The new implementation for floatXiYf has been benchmarked, and generally
provides equal or better performance versus the current implementations:
Throughput (MiB/s) - Before
| u32 | i32 | u64 | i64 | u128 | i128 |
-----|----------|----------|----------|----------|----------|----------|
f16 | none | none | none | none | none | none |
f32 | 2231.67 | 2001.19 | 1745.66 | 1405.77 | 2173.99 | 1874.63 |
f64 | 1407.17 | 1055.83 | 2911.68 | 2437.21 | 1676.05 | 1476.67 |
f80 | none | none | none | none | none | none |
f128 | 327.56 | 321.25 | 645.92 | 654.52 | 1153.56 | 1096.27 |
Throughput (MiB/s) - After
| u32 | i32 | u64 | i64 | u128 | i128 |
-----|----------|----------|----------|----------|----------|----------|
f16 | 1407.61 | 1637.25 | 3555.03 | 2594.56 | 3680.60 | 3063.34 |
f32 | 2101.36 | 2122.62 | 3225.46 | 3123.86 | 2860.05 | 1985.21 |
f64 | 1395.57 | 1314.87 | 2409.24 | 2196.30 | 2384.95 | 1908.15 |
f80 | 475.53 | 457.92 | 884.50 | 812.12 | 1475.27 | 1382.16 |
f128 | 359.60 | 350.91 | 723.08 | 706.80 | 1296.42 | 1198.87 |
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We already have a LICENSE file that covers the Zig Standard Library. We
no longer need to remind everyone that the license is MIT in every single
file.
Previously this was introduced to clarify the situation for a fork of
Zig that made Zig's LICENSE file harder to find, and replaced it with
their own license that required annual payments to their company.
However that fork now appears to be dead. So there is no need to
reinforce the copyright notice in every single file.
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add SPDX license identifier
copyright ownership is zig contributors
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that's all this commit does. further commits will fix cli flags and
such.
see #2221
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