This patch adds doxygen comments for all the intrinsincs in the header file...

This patch adds doxygen comments for all the intrinsincs in the header file pmmintrin.h. The doxygen comments are automatically generated based on Sony's intrinsics document.

Differential Revision: http://reviews.llvm.org/D16913



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@260160 91177308-0d34-0410-b5e6-96231b3b80d8