What's Changed

This release is an API/ABI breaking changes release.

A lot of improvements in QoL, QoI, and API have been made. Some more breaking ABI changes are planned, including a passive move toward an include file layout more amenable to future modularization.

A bunch of platform supports changes are also in to prepare for new platforms including WASM and gasp fixed size SVE.

Improvements of documentation

• Revamped docs to add basic 101 tutorials
• Fixed most documentation to provide Compiler-Explorer-aware samples
• Correct tutorial example code for if_else
• Various proofreading by @pauljurczak and @toughengineer

• Improvements on compress (#947, #1013, #1037, #1213)
  • compress_store is a very important function that has been reimplemented to simplify
    its implementation in term of support for iterators
  • better implementation for X86 architectures (SSE2 and BMI).
  • provide ana alternative implementation based on switch ()

Improvements on algorithms

@DenisYaroshevskiy did a wonderful job on this front.

• New algorithm: reverse (#1066, #1068)
• New algorithm: reverse_copy (#1060)
• New algorithm: iota (#1016)
• New algorithm: fill (#1119)
• New views : map, map_convert (#889)
• Fix copy backward (#1099, #1111)

Improvements on wide handling

• Fix the "no garbage after cardinal" for small wide (#815)
• Fix aliasing issue in wide::get and wide::set (#1047)
• wide<product_type> has correct sizeof
• Adapt wide to handle more complex construction from product_type
• Added an emulation layer for std::experimental::simd types

Convert

• Fixed missing code for eve::convert. All convert calls now produce optimal code.
• More specifically and addition to global fixes, @aguinet contributed:
  • Improvement for u64 => u32 when using AVX2
  • Improvement for u16 => u8 when using AVX2
  • Improvement for u64=>u32 using AVX2 + clang

Shuffle

• Removed shuffling via operator[] and introduced eve::shuffle (#1103)
• Added slide_left shuffle (#1088)
• Added interleave_groups/interleave_groups_shuffle (#1170)
• Added interleave_groups/interleave_groups_shuffle (#1170)
• Fix swap_adjacent_group for AVX512 aggregated
• Implement AVX512 logical pair interleave using BMI parallel bit deposit

Build systems

• Install directory fix (Thanks @JPenuchot)
• Prevent CMake error if EVE_BUILD_TEST is set to OFF (#1032)
• Fix bench compilation issues (#1136)
• Add CI tests for clang++ with -std=libc++ (#614)
• Remove dependency to std::bit_cast in tests

Compiler/Platform supports

• clang++ 13 is now th eminimum clang version
• Added minimum toolchain for WASM
• Enable partial build on appveyor for MSVC for small test samples
• Fixed usage of ARM v8 intrinsic in ARM v7 code
• Fixed a bunch of ULPs boundaries in unit and random tests
• rat tests use more convenient divisor (#1038)
• Reactivate wide * scalar optimisation for ARM (#993)
• Removed support for XOP/FMA4
• Enable compatibility with CPM

Other changes

• Constants can now be queried as an interval
• eve::top_bits is now public API (#586)
• Implements has_aggregated_component
• Implemented airy functions
• Implemented Lambert function
• Implemented the omega function
• Implemented spherical legendre functions
• Implemented spherical bessel functions
• Implemented sign_alternative: a fast -1^N evaluation
• Fixed codegen for aggregated operator<< and >>
• Fixed issue with non-terminating gcd/lcm
• Make write API consistent with store API
• Replace std::forward by EVE_FWD

New Contributors

Thanks to all our new contributors for this release!

• @aguinet made their first contribution in #1049
• @JPenuchot made their first contribution in #1028
• @pauljurczak made their first contribution in #1123
• @the-moisrex made their first contribution in #1025
• @toughengineer made their first contribution in #1182

Our Muse

Miranda Numinous