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Author SHA1 Message Date
Jan Vesely 7fbb96b907 math: Fix log2 vectorization on non-fp64 hw 
reviewer: tstellard
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 260301
 2016-02-09 22:17:42 +00:00
Tom Stellard 44b6117dfd Implement accurate log2 function 
Use the implementation was ported from the AMD builtin library rather
than LLVM Intrinsics.

This has been tested with piglit, OpenCV, and the ocl conformance tests.

llvm-svn: 243131
 2015-07-24 18:07:12 +00:00