diff --git a/mlir/include/mlir/Dialect/Arithmetic/IR/ArithmeticOps.td b/mlir/include/mlir/Dialect/Arithmetic/IR/ArithmeticOps.td
--- a/mlir/include/mlir/Dialect/Arithmetic/IR/ArithmeticOps.td
+++ b/mlir/include/mlir/Dialect/Arithmetic/IR/ArithmeticOps.td
@@ -510,6 +510,7 @@
     %3 = arith.shli %1, %2 : (i8, i8) -> i8    // %3 is 0b00101000
     ```
   }];
+  let hasFolder = 1;
 }
 
 //===----------------------------------------------------------------------===//
diff --git a/mlir/lib/Dialect/Arithmetic/IR/ArithmeticOps.cpp b/mlir/lib/Dialect/Arithmetic/IR/ArithmeticOps.cpp
--- a/mlir/lib/Dialect/Arithmetic/IR/ArithmeticOps.cpp
+++ b/mlir/lib/Dialect/Arithmetic/IR/ArithmeticOps.cpp
@@ -1850,6 +1850,20 @@
   }
   return success();
 }
+//===----------------------------------------------------------------------===//
+// ShLIOp
+//===----------------------------------------------------------------------===//
+
+OpFoldResult arith::ShLIOp::fold(ArrayRef<Attribute> operands) {
+  // Don't fold if shifting more than the bit width.
+  bool bounded = false;
+  auto result =
+      constFoldBinaryOp<IntegerAttr>(operands, [&](APInt a, const APInt &b) {
+        bounded = b.ule(b.getBitWidth());
+        return std::move(a).shl(b);
+      });
+  return bounded ? result : Attribute();
+}
 
 //===----------------------------------------------------------------------===//
 // Atomic Enum
diff --git a/mlir/test/Dialect/Arithmetic/canonicalize.mlir b/mlir/test/Dialect/Arithmetic/canonicalize.mlir
--- a/mlir/test/Dialect/Arithmetic/canonicalize.mlir
+++ b/mlir/test/Dialect/Arithmetic/canonicalize.mlir
@@ -948,3 +948,35 @@
   // CHECK: %[[c3:.+]] = arith.constant 3 : i32
   // CHECK: arith.cmpi ugt, %[[arg0]], %[[c3]] : i32
 }
+
+// -----
+
+// CHECK-LABEL: @foldShl(
+// CHECK: %[[res:.+]] = arith.constant 4294967296 : i64
+// CHECK: return %[[res]]
+func @foldShl() -> i64 {
+  %c1 = arith.constant 1 : i64
+  %c32 = arith.constant 32 : i64
+  %r = arith.shli %c1, %c32 : i64
+  return %r : i64
+}
+
+// CHECK-LABEL: @nofoldShl(
+// CHECK: %[[res:.+]] = arith.shli
+// CHECK: return %[[res]]
+func @nofoldShl() -> i64 {
+  %c1 = arith.constant 1 : i64
+  %c132 = arith.constant 132 : i64
+  %r = arith.shli %c1, %c132 : i64
+  return %r : i64
+}
+
+// CHECK-LABEL: @nofoldShl2(
+// CHECK: %[[res:.+]] = arith.shli
+// CHECK: return %[[res]]
+func @nofoldShl2() -> i64 {
+  %c1 = arith.constant 1 : i64
+  %cm32 = arith.constant -32 : i64
+  %r = arith.shli %c1, %cm32 : i64
+  return %r : i64
+}