2 Commits

Author	SHA1	Message	Date
Cody Tapscott	04dd43934a	Skip some floatXiYf tests on non-x86 platforms ... These need to be skipped because of a bug with `@floatToInt` on stage1: https://github.com/ziglang/zig/issues/11408	2022-04-12 10:25:29 -07:00
Cody Tapscott	b5d5685a4e	compiler_rt: Implement floatXiYf/fixXfYi, incl f80 ... 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 |	2022-04-12 10:25:26 -07:00