Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Next Release

SVE target support is added to libsleef. shibatch#180
SVE target support is added to DFT. With this patch, DFT operations can be carried out using 256, 512, 1024 and 2048-bit wide vectors according to runtime availability of vector registers and operators. shibatch#182
3.5-ULP versions of sinh, cosh, tanh, sinhf, coshf, tanhf, and the corresponding testing functionalities are added. shibatch#192
Power VSX target support is added to libsleef. shibatch#195
Payne-Hanek like argument reduction is added to libsleef. shibatch#197

The whole build system of the project migrated from makefiles to cmake. In particualr this includes libsleef, libsleefgnuabi, libdft and all the tests.
Benchmarks that compare libsleef vs SVML on X86 Linux are available in the project tree under src/libm-benchmarks directory.
Extensive upstream testing via Travis CI and Appveyor, on the following systems:
- OS: Windows / Linux / OSX.
- Compilers: gcc / clang / MSVC.
- Targets: X86 (SSE/AVX/AVX2/AVX512F), AArch64 (Advanced SIMD), ARM (NEON). Emulators like QEMU or SDE can be used to run the tests.
Added the following new vector functions (with relative testing):
- log2
New compatibility tests have been added to check that libsleefgnuabi exports the GNUABI symbols correctly.
The library can be compiled to an LLVM bitcode object.
Added masked interface to the library to support AVX512F masked vectorization.

Use native instructions if available for sqrt.
Fixed fmax and fmin behavior on AArch64: shibatch#140
Speed improvements for asin, acos, fmod and log. Computation speed of other functions are also improved by general optimization. shibatch#97
Removed libm dependency.