Add cross for double3 and double4

Patch by: Jeroen Ketema

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

git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@204477 91177308-0d34-0410-b5e6-96231b3b80d8
Add sincos

Patch by: Jeroen Ketema

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

git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@204478 91177308-0d34-0410-b5e6-96231b3b80d8