[OPENMP] Parsing/Sema for OMPLasprivateClause.
Parsing this clause, allowing it on directive ‘omp simd’ and semantic checks.

llvm-svn: 210184
diff --git a/clang/lib/AST/Stmt.cpp b/clang/lib/AST/Stmt.cpp
index e6aa472..52906877 100644
--- a/clang/lib/AST/Stmt.cpp
+++ b/clang/lib/AST/Stmt.cpp
@@ -1168,6 +1168,28 @@
   return new (Mem) OMPFirstprivateClause(N);
 }
 
+OMPLastprivateClause *OMPLastprivateClause::Create(const ASTContext &C,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc,
+                                                   ArrayRef<Expr *> VL) {
+  void *Mem = C.Allocate(llvm::RoundUpToAlignment(sizeof(OMPLastprivateClause),
+                                                  llvm::alignOf<Expr *>()) +
+                         sizeof(Expr *) * VL.size());
+  OMPLastprivateClause *Clause =
+      new (Mem) OMPLastprivateClause(StartLoc, LParenLoc, EndLoc, VL.size());
+  Clause->setVarRefs(VL);
+  return Clause;
+}
+
+OMPLastprivateClause *OMPLastprivateClause::CreateEmpty(const ASTContext &C,
+                                                        unsigned N) {
+  void *Mem = C.Allocate(llvm::RoundUpToAlignment(sizeof(OMPLastprivateClause),
+                                                  llvm::alignOf<Expr *>()) +
+                         sizeof(Expr *) * N);
+  return new (Mem) OMPLastprivateClause(N);
+}
+
 OMPSharedClause *OMPSharedClause::Create(const ASTContext &C,
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,