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2022-04-12compiler_rt: Implement floatXiYf/fixXfYi, incl f80Cody Tapscott
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 |
2021-09-01std, compiler-rt: remove test names where applicableAndrew Kelley
Tests with no names are executed when using `zig test` regardless of the `--test-filter` used. Non-named tests should be used when simply importing unit tests from another file. This allows `zig test` to find all the appropriate tests, even when using `--test-filter`.
2021-08-24remove redundant license headers from zig standard libraryAndrew Kelley
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.
2020-12-31Year++Frank Denis
2020-08-20add license header to all std lib filesAndrew Kelley
add SPDX license identifier copyright ownership is zig contributors
2020-01-07Use the correct calling convention for AEABI intrinsicsLemonBoy
2020-01-06zig fmt and update `extern fn` to `callconv(.C)`Andrew Kelley
2019-09-25mv std/ lib/Andrew Kelley
that's all this commit does. further commits will fix cli flags and such. see #2221
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