compact syntax for spatial tensor ops

better IR compaction after dcp merge
remove pim.mvm op
better memory report

src/PIM/Compiler/PimWeightEmitter.cpp

@@ -103,7 +103,6 @@ SmallVector<unsigned, 8> getUsedWeightIndices(Block& block) {
       indices.push_back(weightIndex);
   };
 
-  block.walk([&](pim::PimMVMOp mvmOp) { addIndex(mvmOp.getWeightIndex()); });
   block.walk([&](pim::PimVMMOp vmmOp) { addIndex(vmmOp.getWeightIndex()); });
   llvm::sort(indices);
   return indices;