[OPENMP 4.5] parsing/sema support for 'nogroup' clause.

OpenMP 4.5 adds 'taskloop' and 'taskloop simd' directives. These directives have new 'nogroup' clause. Patch adds basic parsing/sema support for this clause.

llvm-svn: 254899

2 files changed, 19 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index ea48d4044ad..125113a37b6 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -5408,6 +5408,7 @@ OMPClause *Sema::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
   case OMPC_threads:
   case OMPC_simd:
   case OMPC_map:
+  case OMPC_nogroup:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }
@@ -5684,6 +5685,7 @@ OMPClause *Sema::ActOnOpenMPSimpleClause(
   case OMPC_num_teams:
   case OMPC_thread_limit:
   case OMPC_priority:
+  case OMPC_nogroup:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }
@@ -5817,6 +5819,7 @@ OMPClause *Sema::ActOnOpenMPSingleExprWithArgClause(
   case OMPC_num_teams:
   case OMPC_thread_limit:
   case OMPC_priority:
+  case OMPC_nogroup:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }
@@ -5926,6 +5929,9 @@ OMPClause *Sema::ActOnOpenMPClause(OpenMPClauseKind Kind,
   case OMPC_simd:
     Res = ActOnOpenMPSIMDClause(StartLoc, EndLoc);
     break;
+  case OMPC_nogroup:
+    Res = ActOnOpenMPNogroupClause(StartLoc, EndLoc);
+    break;
   case OMPC_if:
   case OMPC_final:
   case OMPC_num_threads:
@@ -6009,6 +6015,11 @@ OMPClause *Sema::ActOnOpenMPSIMDClause(SourceLocation StartLoc,
   return new (Context) OMPSIMDClause(StartLoc, EndLoc);
 }
 
+OMPClause *Sema::ActOnOpenMPNogroupClause(SourceLocation StartLoc,
+                                          SourceLocation EndLoc) {
+  return new (Context) OMPNogroupClause(StartLoc, EndLoc);
+}
+
 OMPClause *Sema::ActOnOpenMPVarListClause(
     OpenMPClauseKind Kind, ArrayRef<Expr *> VarList, Expr *TailExpr,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation ColonLoc,
@@ -6084,6 +6095,7 @@ OMPClause *Sema::ActOnOpenMPVarListClause(
   case OMPC_num_teams:
   case OMPC_thread_limit:
   case OMPC_priority:
+  case OMPC_nogroup:
   case OMPC_unknown:
     llvm_unreachable("Clause is not allowed.");
   }
diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 9baa797188a..6d80d038a43 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -7546,6 +7546,13 @@ OMPClause *TreeTransform<Derived>::TransformOMPSIMDClause(OMPSIMDClause *C) {
 
 template <typename Derived>
 OMPClause *
+TreeTransform<Derived>::TransformOMPNogroupClause(OMPNogroupClause *C) {
+  // No need to rebuild this clause, no template-dependent parameters.
+  return C;
+}
+
+template <typename Derived>
+OMPClause *
 TreeTransform<Derived>::TransformOMPPrivateClause(OMPPrivateClause *C) {
   llvm::SmallVector<Expr *, 16> Vars;
   Vars.reserve(C->varlist_size());