Bug fixes in dfg2llvm pass.

Code generation for VISC query intrinsics tested.

llvm/lib/Transforms/DFG2LLVM_NVPTX/DFG2LLVM_NVPTX.cpp

@@ -169,7 +169,10 @@ namespace {
             DEBUG(errs() << F_nvptx->getName() << "\t: Handling getNumDims\n");
             // get node from map
             // get the appropriate field
-            int numOfDim = Leaf_HandleToDFNodeMap[ArgII]->getNumOfDim();
+            ArgII = cast<IntrinsicInst>((II->getOperand(0))->stripPointerCasts());
+            ArgDFNode = Leaf_HandleToDFNodeMap[ArgII];
+            int numOfDim = ArgDFNode->getNumOfDim();
+            DEBUG(errs() << "\t  Got node dimension : " << numOfDim << "\n");
             IntegerType* IntTy = Type::getInt32Ty(getGlobalContext());
             ConstantInt* numOfDimConstant = ConstantInt::getSigned(IntTy, (int64_t) numOfDim);