Vector-Optimized Library of Kernels : Maintenance Release v1.0.1

This is a maintenance release with bug fixes since the initial release of v1.0 in April.


The following authors have contributed code to this release:



Several bug fixes in different kernels. The NEON implementations of the following kernels have been fixed:

  • 32f_x2_add_32f
  • 32f_x2_dot_prod_32f
  • 32fc_s32fc_multiply_32fc
  • 32fc_x2_multiply_32fc

Additionally the NEON asm based 32f_x2_add_32f protokernels were not being used and are now included and available for use via the dispatcher.

The 32f_s32f_x2_fm_detect_32f kernel now has a puppet. This solves QA seg faults on 32-bit machines and provide a better test for this kernel.

The 32fc_s32fc_x2_rotator_32fc generic protokernel replaced cabsf with hypotf for better Android support.


Static builds now trigger the applications (volk_profile and volk-config-info) to be statically linked.

The file gcc_x86_cpuid.h has been removed since it was no longer being used. Previously it provided cpuid functionality for ancient compilers that we do not support.

All build types now use -Wall.

QA and Testing

The documentation around the --update option to volk_profile now makes it clear that the option will only profile kernels without entries in volk_profile. The signature of run_volk_tests with expanded args changed signed types to unsigned types to reflect the actual input.

The remaining changes are all non-functional changes to address issues from Coverity.