refactor handling of ocuvector lvalue->rvalue codegen into its own method.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40780 91177308-0d34-0410-b5e6-96231b3b80d8

CodeGen/CGExpr.cpp

@@ -285,7 +285,16 @@ RValue CodeGenFunction::EmitLoadOfLValue(LValue LV, QualType ExprType) {
 
   // If this is a reference to a subset of the elements of a vector, either
   // shuffle the input or extract/insert them as appropriate.
-  if (LV.isOCUVectorComp()) {
+  if (LV.isOCUVectorComp())
+    return EmitLoadOfOCUComponentLValue(LV, ExprType);
+  
+  assert(0 && "Bitfield ref not impl!");
+}
+
+// If this is a reference to a subset of the elements of a vector, either
+// shuffle the input or extract/insert them as appropriate.
+RValue CodeGenFunction::EmitLoadOfOCUComponentLValue(LValue LV,
+                                                     QualType ExprType) {
   llvm::Value *Vec = Builder.CreateLoad(LV.getOCUVectorAddr(), "tmp");
   
   unsigned EncFields = LV.getOCUVectorComp();
@@ -334,8 +343,6 @@ RValue CodeGenFunction::EmitLoadOfLValue(LValue LV, QualType ExprType) {
   return RValue::get(Result);
 }
 
-  assert(0 && "Bitfield ref not impl!");
-}
 
 RValue CodeGenFunction::EmitLoadOfLValue(const Expr *E) {
   return EmitLoadOfLValue(EmitLValue(E), E->getType());

CodeGen/CodeGenFunction.h

@@ -316,6 +316,8 @@ public:
   /// rvalue, returning the rvalue.
   RValue EmitLoadOfLValue(const Expr *E);
   RValue EmitLoadOfLValue(LValue V, QualType LVType);
+  RValue EmitLoadOfOCUComponentLValue(LValue V, QualType LVType);
+
   
   /// EmitStoreThroughLValue - Store the specified rvalue into the specified
   /// lvalue, where both are guaranteed to the have the same type, and that type