aboutsummaryrefslogtreecommitdiff
path: root/lib/std/special/compiler_rt/fixunstfsi_test.zig
AgeCommit message (Collapse)Author
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 |
2021-08-24remove 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.
2021-05-31stage2: disallow `1.e9` and `0x1.p9` as float literalsIsaac Freund
Instead require `1e9` and `0x1p9`, disallowing the trailing dot. This change to the grammar is consistent with forbidding `1.` and `0x1.` as float literals and ensures there is only one way to do things here.
2021-05-08update usage of std.testing in compiler_rtVeikka Tuominen
2021-05-08std: update usage of std.testingVeikka Tuominen
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
2020-02-07remove workarounds for Windows native CPU featuresAndrew Kelley
bug fixed in LLVM 10 closes #508
2020-01-23disable f128 compiler_rt tests failing on windowsAndrew Kelley
These were never working with native CPU features. In this branch, we fix native CPU features not being enabled on Windows, and regress f128 language features. In the llvm10 branch, all this is fixed, and the tests are re-enabled.
2019-11-08update the codebase to use `@as`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
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-28 23:42:29 +0000