[OpenMP][CodeGen] Add codegen for combined 'loop' directives.

The loop directive is a descriptive construct which allows the compiler
flexibility in how it generates code for the directive's associated
loop(s). See OpenMP specification 5.2 [257:8-9].

Codegen added in this patch for the combined 'loop' directives are:

'target teams loop'     -> 'target teams distribute parallel for'
'teams loop'            -> 'teams distribute parallel for'
'target parallel loop'  -> 'target parallel for'
'parallel loop'         -> 'parallel for'

NOTE: The implementation of the 'loop' directive itself is unchanged.

Differential Revision: https://reviews.llvm.org/D145823

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 1ff6528..688a8f2 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -3580,6 +3580,12 @@ public:
   void EmitOMPTargetTeamsDistributeSimdDirective(
       const OMPTargetTeamsDistributeSimdDirective &S);
   void EmitOMPGenericLoopDirective(const OMPGenericLoopDirective &S);
+  void EmitOMPParallelGenericLoopDirective(const OMPLoopDirective &S);
+  void EmitOMPTargetParallelGenericLoopDirective(
+      const OMPTargetParallelGenericLoopDirective &S);
+  void EmitOMPTargetTeamsGenericLoopDirective(
+      const OMPTargetTeamsGenericLoopDirective &S);
+  void EmitOMPTeamsGenericLoopDirective(const OMPTeamsGenericLoopDirective &S);
   void EmitOMPInteropDirective(const OMPInteropDirective &S);
   void EmitOMPParallelMaskedDirective(const OMPParallelMaskedDirective &S);
 
@@ -3620,6 +3626,16 @@ public:
       CodeGenModule &CGM, StringRef ParentName,
       const OMPTargetTeamsDistributeParallelForSimdDirective &S);
 
+  /// Emit device code for the target teams loop directive.
+  static void EmitOMPTargetTeamsGenericLoopDeviceFunction(
+      CodeGenModule &CGM, StringRef ParentName,
+      const OMPTargetTeamsGenericLoopDirective &S);
+
+  /// Emit device code for the target parallel loop directive.
+  static void EmitOMPTargetParallelGenericLoopDeviceFunction(
+      CodeGenModule &CGM, StringRef ParentName,
+      const OMPTargetParallelGenericLoopDirective &S);
+
   static void EmitOMPTargetTeamsDistributeParallelForDeviceFunction(
       CodeGenModule &CGM, StringRef ParentName,
       const OMPTargetTeamsDistributeParallelForDirective &S);