Hi everyone!

This is the VOLK v3.1.1 release! We want to thank all contributors. This release wouldn't have been possible without them.

This is a maintenance release to fix subtle bugs in many areas and to improve our tests where possible. All in all, our CI is more stable now and catches more errors.

Contributors

• Clayton Smith argilo@gmail.com
• Johannes Demel demel@uni-bremen.de, jdemel@gnuradio.org
• Kenji Rikitake kenji.rikitake@acm.org
• Philip Balister philip@opensdr.com

Changes

• CI fixes
• Allow for rounding error in float-to-int conversions
• Allow for rounding error in volk_32fc_s32f_magnitude_16i
• Allow for rounding error in float-to-int interleave
• Add missing volk_16_byteswap_u_orc to puppet
• Fix 64-bit integer testing

• Build and test neonv7 protokernels on armv7

• kernels

• Remove broken sse32 kernels
• Fix flaky fm_detect test
• Fix flaky mod_range test
• Remove unnecessary volatiles from volk_32fc_s32f_magnitude_16i
• Remove SSE protokernels written in assembly
• Remove inline assembler from volk_32fc_convert_16ic_neon
• Use bit shifts in generic and byte_shuffle reverse
• Remove disabled SSE4.1 dot product
• Fix conv_k7_r2 kernel and puppet
• Remove unused argument from renormalize
• Align types in ORC function signatures
• Uncomment AVX2 implementation
• Renormalize in every iteration on AVX2
• Remove extraneous permutations
• Compute the minimum over both register lanes

• volk_32fc_s32f_atan2_32f: Add NaN tests for avx2 and avx2fma code

• fixes

• Express version information in decimal
• Remove __VOLK_VOLATILE
• Remove references to simdmath library
• cmake: Switch to GNUInstallDirs
• fprintf: Remove fprintf statements from volk_malloc
• release: Prepare release with updated files
• Get the sse2neon.h file to a git submodule to avoid random copies.