[Numpy-svn] [numpy/numpy] 3870d1: ENH: vectorize negative with sse

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/numpy/numpy
  Commit: 3870d1ae49c0c55907bda7d65b46b0ce40467ca5
      https://github.com/numpy/numpy/commit/3870d1ae49c0c55907bda7d65b46b0ce40467ca5
  Author: Julian Taylor <jtaylor.debian at googlemail.com>
  Date:   2014-02-27 (Thu, 27 Feb 2014)

  Changed paths:
    M numpy/core/src/umath/loops.c.src
    M numpy/core/src/umath/simd.inc.src
    M numpy/core/tests/test_umath.py

  Log Message:
  -----------
  ENH: vectorize negative with sse

negative on amd64 is the same as absolute except using xor instead of andnot


  Commit: 0dbbbd48d79dd4b652e82e76c3b6e3815f254fc6
      https://github.com/numpy/numpy/commit/0dbbbd48d79dd4b652e82e76c3b6e3815f254fc6
  Author: Charles Harris <charlesr.harris at gmail.com>
  Date:   2014-02-27 (Thu, 27 Feb 2014)

  Changed paths:
    M numpy/core/src/umath/loops.c.src
    M numpy/core/src/umath/simd.inc.src
    M numpy/core/tests/test_umath.py

  Log Message:
  -----------
  Merge pull request #4386 from juliantaylor/sse2-negative

ENH: vectorize negative with sse


Compare: https://github.com/numpy/numpy/compare/8c4d9bedd9d8...0dbbbd48d79d