Merging r200195:

------------------------------------------------------------------------
r200195 | michel.daenzer | 2014-01-26 23:20:44 -0800 (Sun, 26 Jan 2014) | 4 lines

R600/SI: Add intrinsic for S_SENDMSG instruction

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 204636