[OPENMP 4.1] Initial support for 'simdlen' clause.
Add parsing/sema analysis for 'simdlen' clause in simd directives. Also add check that if both 'safelen' and 'simdlen' clauses are specified, the value of 'simdlen' parameter is less than the value of 'safelen' parameter.

llvm-svn: 245692
diff --git a/clang/lib/Basic/OpenMPKinds.cpp b/clang/lib/Basic/OpenMPKinds.cpp
index 3262eec..e09c0a9 100644
--- a/clang/lib/Basic/OpenMPKinds.cpp
+++ b/clang/lib/Basic/OpenMPKinds.cpp
@@ -107,6 +107,7 @@
   case OMPC_final:
   case OMPC_num_threads:
   case OMPC_safelen:
+  case OMPC_simdlen:
   case OMPC_collapse:
   case OMPC_private:
   case OMPC_firstprivate:
@@ -190,6 +191,7 @@
   case OMPC_final:
   case OMPC_num_threads:
   case OMPC_safelen:
+  case OMPC_simdlen:
   case OMPC_collapse:
   case OMPC_private:
   case OMPC_firstprivate: