add shared loop creation helpers

add shared checked arithmetic helpers
refactor pim passes into Pim/Transforms
more robust memory coalescing pass

src/PIM/Common/CMakeLists.txt

@@ -5,9 +5,11 @@ add_pim_library(OMPimCommon
   IR/ConstantUtils.cpp
   IR/CoreBlockUtils.cpp
   IR/EntryPointUtils.cpp
+  IR/LoopUtils.cpp
   IR/ShapeUtils.cpp
   IR/SubviewUtils.cpp
   IR/WeightUtils.cpp
+  Support/CheckedArithmetic.cpp
   Support/DebugDump.cpp
   Support/Diagnostics.cpp
   Support/FileSystemUtils.cpp
@@ -20,6 +22,7 @@ add_pim_library(OMPimCommon
 
   LINK_LIBS PUBLIC
   MLIRLinalgDialect
+  MLIRSCFDialect
   onnx
   SpatialOps
   PimOps