Modified metadata generation to generate the kernel string and count in one

line. metadata.py is not required anymore

llvm/lib/Transforms/DFG2LLVM_NVPTX/DFG2LLVM_NVPTX.cpp

@@ -1133,12 +1133,10 @@ void CodeGenTraversal::addCLMetadata(Function *F) {
   NamedMDNode *MDN_kernels = KernelM.getOrInsertNamedMetadata("opencl.kernels");
   MDN_kernels->addOperand(MDKernelNode);
 
-  KernelMD.push_back(MDNode::get(KernelM.getContext(),
-                                 MDString::get(KernelM.getContext(), "kernel")));
+  KernelMD.push_back(MDString::get(KernelM.getContext(), "kernel"));
   // TODO: Replace 1 with the number of the kernel.
   // Add when support for multiple launces is added
-  KernelMD.push_back(MDNode::get(KernelM.getContext(),
-                                 ConstantInt::get(Type::getInt32Ty(KernelM.getContext()),1)));
+  KernelMD.push_back(ConstantInt::get(Type::getInt32Ty(KernelM.getContext()),1));
   MDNode *MDNvvmAnnotationsNode = MDNode::get(KernelM.getContext(), KernelMD);
   NamedMDNode *MDN_annotations = KernelM.getOrInsertNamedMetadata("nvvm.annotations");
   MDN_annotations->addOperand(MDNvvmAnnotationsNode);