diff --git a/mlir/docs/OpDefinitions.md b/mlir/docs/OpDefinitions.md
--- a/mlir/docs/OpDefinitions.md
+++ b/mlir/docs/OpDefinitions.md
@@ -572,10 +572,13 @@
 
 `OpBuilder` is a class that takes the parameter list and the optional `build()`
 method body. They are separated because we need to generate op declaration and
-definition into separate files. The parameter list should _include_ `Builder
-*builder, OperationState &state`. If the `body` is not provided, _only_ the
-builder declaration will be generated; this provides a way to define complicated
-builders entirely in C++ files.
+definition into separate files. The parameter list should not include `OpBuilder
+&builder, OperationState &state` as they will be inserted automatically and the
+placeholders `$_builder` and `$_state` used. For legacy/to be deprecated reason
+if the `OpBuilder` parameter starts with `OpBuilder` param, then the parameter
+is used. If the `body` is not provided, only the builder declaration will be
+generated; this provides a way to define complicated builders entirely in C++
+files.
 
 For example, for the following op:
 
@@ -595,8 +598,8 @@
   ...
 
   let builders = [
-    OpBuilder<"OpBuilder &builder, OperationState &state, float val = 0.5f", [{
-      state.addAttribute("attr", builder.getF32FloatAttr(val));
+    OpBuilder<"float val = 0.5f", [{
+      $_state.addAttribute("attr", $_builder.getF32FloatAttr(val));
     }]>
   ];
 }
diff --git a/mlir/test/lib/Dialect/Test/TestOps.td b/mlir/test/lib/Dialect/Test/TestOps.td
--- a/mlir/test/lib/Dialect/Test/TestOps.td
+++ b/mlir/test/lib/Dialect/Test/TestOps.td
@@ -1059,14 +1059,14 @@
   // result type. So need to provide a builder not requiring result types.
   let builders = [
     OpBuilder<
-      "OpBuilder &builder, OperationState &state, IntegerAttr count",
+      "IntegerAttr count",
       [{
-        auto i32Type = builder.getIntegerType(32);
-        state.addTypes(i32Type); // $output1
+        auto i32Type = $_builder.getIntegerType(32);
+        $_state.addTypes(i32Type); // $output1
         SmallVector<Type, 4> types(count.getInt(), i32Type);
-        state.addTypes(types); // $output2
-        state.addTypes(types); // $output3
-        state.addAttribute("count", count);
+        $_state.addTypes(types); // $output2
+        $_state.addTypes(types); // $output3
+        $_state.addAttribute("count", count);
       }]>
   ];
 }
diff --git a/mlir/test/mlir-tblgen/op-decl.td b/mlir/test/mlir-tblgen/op-decl.td
--- a/mlir/test/mlir-tblgen/op-decl.td
+++ b/mlir/test/mlir-tblgen/op-decl.td
@@ -80,7 +80,7 @@
 // CHECK:   uint32_t attr1();
 // CHECK:   ::mlir::FloatAttr attr2Attr()
 // CHECK:   ::llvm::Optional< ::llvm::APFloat > attr2();
-// CHECK:   static void build(Value val);
+// CHECK:   static void build(::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &odsState, Value val);
 // CHECK:   static void build(::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &odsState, ::mlir::Type r, ::llvm::ArrayRef<::mlir::Type> s, ::mlir::Value a, ::mlir::ValueRange b, ::mlir::IntegerAttr attr1, /*optional*/::mlir::FloatAttr attr2, unsigned someRegionsCount)
 // CHECK:   static void build(::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &odsState, ::mlir::Type r, ::llvm::ArrayRef<::mlir::Type> s, ::mlir::Value a, ::mlir::ValueRange b, uint32_t attr1, /*optional*/::mlir::FloatAttr attr2, unsigned someRegionsCount)
 // CHECK:   static void build(::mlir::OpBuilder &, ::mlir::OperationState &odsState, ::llvm::ArrayRef<::mlir::Type> resultTypes, ::mlir::ValueRange operands, ::llvm::ArrayRef<::mlir::NamedAttribute> attributes, unsigned numRegions)
@@ -256,7 +256,7 @@
 // CHECK-LABEL: NS::SkipDefaultBuildersOp declarations
 // CHECK:     class SkipDefaultBuildersOp
 // CHECK-NOT:   static void build(::mlir::Builder
-// CHECK:       static void build(Value
+// CHECK:       static void build(::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &odsState, Value
 
 // Check leading underscore in op name
 // ---
diff --git a/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp b/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp
--- a/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp
+++ b/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp
@@ -47,6 +47,7 @@
 
 static const char *const tblgenNamePrefix = "tblgen_";
 static const char *const generatedArgName = "odsArg";
+static const char *const builder = "odsBuilder";
 static const char *const builderOpState = "odsState";
 
 // The logic to calculate the actual value range for a declared operand/result
@@ -1177,16 +1178,34 @@
     if (listInit) {
       for (Init *init : listInit->getValues()) {
         Record *builderDef = cast<DefInit>(init)->getDef();
-        StringRef params = builderDef->getValueAsString("params");
+        StringRef params = builderDef->getValueAsString("params").trim();
+        // TODO: Remove this and just generate the builder/state always.
+        bool skipParamGen = params.startswith("OpBuilder") ||
+                            params.startswith("mlir::OpBuilder") ||
+                            params.startswith("::mlir::OpBuilder");
         StringRef body = builderDef->getValueAsString("body");
         bool hasBody = !body.empty();
 
         OpMethod::Property properties =
             hasBody ? OpMethod::MP_Static : OpMethod::MP_StaticDeclaration;
+        std::string paramStr =
+            skipParamGen ? params.str()
+                         : llvm::formatv("::mlir::OpBuilder &{0}, "
+                                         "::mlir::OperationState &{1}, {2}",
+                                         builder, builderOpState, params)
+                               .str();
         auto *method =
-            opClass.addMethodAndPrune("void", "build", properties, params);
-        if (hasBody)
-          method->body() << body;
+            opClass.addMethodAndPrune("void", "build", properties, paramStr);
+        if (hasBody) {
+          if (skipParamGen) {
+            method->body() << body;
+          } else {
+            FmtContext fctx;
+            fctx.withBuilder(builder);
+            fctx.addSubst("_state", builderOpState);
+            method->body() << tgfmt(body, &fctx);
+          }
+        }
       }
     }
     if (op.skipDefaultBuilders()) {