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android / platform / external / eigen / 29ebd84cb
commit29ebd84cb779eae01302a9f1e40cf06ca5eeeceb[log] [tgz]
authorAntonio Sanchez <cantonios@google.com>Fri Feb 26 13:59:46 2021 -0800
committerAntonio Sanchez <cantonios@google.com>Fri Feb 26 14:08:40 2021 -0800
treeb5f4e4991a36f234b68be6d7c2b00d62d060f8e3
parentfe19714f8094a2b6d6dab0cdd3c32874d0ad66b9 [diff]
Fix NEON sqrt for 32-bit, add prsqrt.

With !406, we accidentally broke arm 32-bit NEON builds, since
`vsqrt_f32` is only available for 64-bit.

Here we add back the `rsqrt` implementation for 32-bit, relying
on a `prsqrt` implementation with better handling of edge cases.

Note that several of the 32-bit NEON packet tests are currently
failing - either due to denormal handling (NEON versions flush
to zero, but scalar paths don't) or due to accuracy (e.g. sin/cos).
3 files changed
tree: b5f4e4991a36f234b68be6d7c2b00d62d060f8e3
  1. bench/
  2. blas/
  3. ci/
  4. cmake/
  5. debug/
  6. demos/
  7. doc/
  8. Eigen/
  9. failtest/
  10. lapack/
  11. scripts/
  12. test/
  13. unsupported/
  14. .gitignore
  15. .gitlab-ci.yml
  16. .hgeol
  17. CMakeLists.txt
  18. COPYING.APACHE
  19. COPYING.BSD
  20. COPYING.GPL
  21. COPYING.LGPL
  22. COPYING.MINPACK
  23. COPYING.MPL2
  24. COPYING.README
  25. CTestConfig.cmake
  26. CTestCustom.cmake.in
  27. eigen3.pc.in
  28. INSTALL
  29. README.md
  30. signature_of_eigen3_matrix_library
README.md

Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.

For more information go to http://eigen.tuxfamily.org/.

For pull request, bug reports, and feature requests, go to https://gitlab.com/libeigen/eigen.