diff --git a/lib/Transform/Arith/BUILD b/lib/Transform/Arith/BUILD
index efd56e3..a1e6e0a 100644
--- a/lib/Transform/Arith/BUILD
+++ b/lib/Transform/Arith/BUILD
@@ -47,6 +47,7 @@ cc_library(
     hdrs = ["Passes.h"],
     deps = [
         ":MulToAdd",
+        ":MulToAddPdll",
         ":pass_inc_gen",
     ],
 )
@@ -67,3 +68,18 @@ gentbl_cc_library(
         "@llvm-project//mlir:ArithOpsTdFiles",
     ],
 )
+
+cc_library(
+    name = "MulToAddPdll",
+    srcs = ["MulToAddPdll.cpp"],
+    hdrs = ["MulToAddPdll.h"],
+    deps = [
+        ":pass_inc_gen",
+        ":MulToAddPdllIncGen",
+        "@llvm-project//mlir:ArithDialect",
+        "@llvm-project//mlir:FuncDialect",
+        "@llvm-project//mlir:Pass",
+        "@llvm-project//mlir:Transforms",
+    ],
+)
+
diff --git a/lib/Transform/Arith/MulToAdd.pdll b/lib/Transform/Arith/MulToAdd.pdll
index 57cb4f4..54c2e4f 100644
--- a/lib/Transform/Arith/MulToAdd.pdll
+++ b/lib/Transform/Arith/MulToAdd.pdll
@@ -1,13 +1,14 @@
 #include "mlir/Dialect/Arith/IR/ArithOps.td"
 
 Constraint IsPowerOfTwo(attr: Attr) [{
-  int64_t value = cast<::mlir::IntegerAttr>(attr).getValue();
+  int64_t value = cast<::mlir::IntegerAttr>(attr).getValue().getSExtValue();
   return success((value & (value - 1)) == 0);
 }];
 
 Constraint Halve(attr: Attr) -> Attr [{
-  int64_t value = cast<::mlir::IntegerAttr>(attr).getValue();
-  return rewriter.getIntegerAttr(attr.getType(), value / 2);
+  IntegerAttr cAttr = ::llvm::cast<::mlir::IntegerAttr>(attr);
+  int64_t value = cAttr.getValue().getSExtValue();
+  return rewriter.getIntegerAttr(cAttr.getType(), value / 2);
 }];
 
 Pattern PowerOfTwoExpand with benefit(2) {
diff --git a/lib/Transform/Arith/MulToAddPdll.cpp b/lib/Transform/Arith/MulToAddPdll.cpp
new file mode 100644
index 0000000..b88958f
--- /dev/null
+++ b/lib/Transform/Arith/MulToAddPdll.cpp
@@ -0,0 +1,24 @@
+#include "lib/Transform/Arith/MulToAddPdll.h"
+#include "mlir/Dialect/Arith/IR/Arith.h"
+#include "mlir/IR/PatternMatch.h"
+#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
+#include "mlir/include/mlir/Pass/Pass.h"
+
+namespace mlir {
+namespace tutorial {
+
+#define GEN_PASS_DEF_MULTOADDPDLL
+#include "lib/Transform/Arith/Passes.h.inc"
+
+struct MulToAddPdll : impl::MulToAddPdllBase<MulToAddPdll> {
+  using MulToAddPdllBase::MulToAddPdllBase;
+
+  void runOnOperation() {
+    mlir::RewritePatternSet patterns(&getContext());
+    populateGeneratedPDLLPatterns(patterns);
+    (void)applyPatternsAndFoldGreedily(getOperation(), std::move(patterns));
+  }
+};
+
+} // namespace tutorial
+} // namespace mlir
diff --git a/lib/Transform/Arith/MulToAddPdll.h b/lib/Transform/Arith/MulToAddPdll.h
new file mode 100644
index 0000000..9ebdc3c
--- /dev/null
+++ b/lib/Transform/Arith/MulToAddPdll.h
@@ -0,0 +1,19 @@
+#ifndef LIB_TRANSFORM_ARITH_MULTOADDPDLL_H_
+#define LIB_TRANSFORM_ARITH_MULTOADDPDLL_H_
+
+#include "mlir/Pass/Pass.h"
+#include "mlir/IR/PatternMatch.h"
+#include "mlir/Dialect/Arith/IR/Arith.h"
+
+namespace mlir {
+namespace tutorial {
+
+#define GEN_PASS_DECL_MULTOADDPDLL
+#include "lib/Transform/Arith/Passes.h.inc"
+
+#include "lib/Transform/Arith/MulToAddPdll.h.inc"
+
+}  // namespace tutorial
+}  // namespace mlir
+
+#endif  // LIB_TRANSFORM_ARITH_MULTOADDPDLL_H_
diff --git a/lib/Transform/Arith/Passes.td b/lib/Transform/Arith/Passes.td
index 0c60eb4..d5dd6c4 100644
--- a/lib/Transform/Arith/Passes.td
+++ b/lib/Transform/Arith/Passes.td
@@ -10,4 +10,11 @@ def MulToAdd : Pass<"mul-to-add"> {
   }];
 }
 
+def MulToAddPdll : Pass<"mul-to-add-pdll"> {
+  let summary = "Convert multiplications to repeated additions using pdll";
+  let description = [{
+    Convert multiplications to repeated additions (using pdll).
+  }];
+}
+
 #endif  // LIB_TRANSFORM_ARITH_PASSES_TD_