diff --git a/mlir/include/mlir/Conversion/ArithToLLVM/ArithToLLVM.h b/mlir/include/mlir/Conversion/ArithToLLVM/ArithToLLVM.h
--- a/mlir/include/mlir/Conversion/ArithToLLVM/ArithToLLVM.h
+++ b/mlir/include/mlir/Conversion/ArithToLLVM/ArithToLLVM.h
@@ -13,6 +13,7 @@
 
 namespace mlir {
 
+class DialectRegistry;
 class LLVMTypeConverter;
 class RewritePatternSet;
 class Pass;
@@ -23,6 +24,8 @@
 namespace arith {
 void populateArithToLLVMConversionPatterns(LLVMTypeConverter &converter,
                                            RewritePatternSet &patterns);
+
+void registerConvertArithToLLVMInterface(DialectRegistry &registry);
 } // namespace arith
 } // namespace mlir
 
diff --git a/mlir/include/mlir/Conversion/AsyncToLLVM/AsyncToLLVM.h b/mlir/include/mlir/Conversion/AsyncToLLVM/AsyncToLLVM.h
--- a/mlir/include/mlir/Conversion/AsyncToLLVM/AsyncToLLVM.h
+++ b/mlir/include/mlir/Conversion/AsyncToLLVM/AsyncToLLVM.h
@@ -14,6 +14,7 @@
 namespace mlir {
 
 class ConversionTarget;
+class DialectRegistry;
 class Pass;
 class MLIRContext;
 class TypeConverter;
@@ -34,6 +35,8 @@
     TypeConverter &typeConverter, RewritePatternSet &patterns,
     ConversionTarget &target);
 
+void registerConvertAsyncToLLVMInterface(DialectRegistry &registry);
+
 } // namespace mlir
 
 #endif // MLIR_CONVERSION_ASYNCTOLLVM_ASYNCTOLLVM_H
diff --git a/mlir/include/mlir/Conversion/ComplexToLLVM/ComplexToLLVM.h b/mlir/include/mlir/Conversion/ComplexToLLVM/ComplexToLLVM.h
--- a/mlir/include/mlir/Conversion/ComplexToLLVM/ComplexToLLVM.h
+++ b/mlir/include/mlir/Conversion/ComplexToLLVM/ComplexToLLVM.h
@@ -11,6 +11,7 @@
 #include "mlir/Conversion/LLVMCommon/StructBuilder.h"
 
 namespace mlir {
+class DialectRegistry;
 class LLVMTypeConverter;
 class Pass;
 class RewritePatternSet;
@@ -40,6 +41,9 @@
 /// Populate the given list with patterns that convert from Complex to LLVM.
 void populateComplexToLLVMConversionPatterns(LLVMTypeConverter &converter,
                                              RewritePatternSet &patterns);
+
+void registerConvertComplexToLLVMInterface(DialectRegistry &registry);
+
 } // namespace mlir
 
 #endif // MLIR_CONVERSION_COMPLEXTOLLVM_COMPLEXTOLLVM_H_
diff --git a/mlir/include/mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h b/mlir/include/mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h
--- a/mlir/include/mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h
+++ b/mlir/include/mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h
@@ -16,6 +16,7 @@
 #include <memory>
 
 namespace mlir {
+class DialectRegistry;
 class LLVMTypeConverter;
 class RewritePatternSet;
 class Pass;
@@ -37,6 +38,9 @@
 void populateAssertToLLVMConversionPattern(LLVMTypeConverter &converter,
                                            RewritePatternSet &patterns,
                                            bool abortOnFailure = true);
+
+void registerConvertControlFlowToLLVMInterface(DialectRegistry &registry);
+
 } // namespace cf
 } // namespace mlir
 
diff --git a/mlir/include/mlir/InitAllExtensions.h b/mlir/include/mlir/InitAllExtensions.h
--- a/mlir/include/mlir/InitAllExtensions.h
+++ b/mlir/include/mlir/InitAllExtensions.h
@@ -14,6 +14,10 @@
 #ifndef MLIR_INITALLEXTENSIONS_H_
 #define MLIR_INITALLEXTENSIONS_H_
 
+#include "mlir/Conversion/ArithToLLVM/ArithToLLVM.h"
+#include "mlir/Conversion/AsyncToLLVM/AsyncToLLVM.h"
+#include "mlir/Conversion/ComplexToLLVM/ComplexToLLVM.h"
+#include "mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h"
 #include "mlir/Conversion/MemRefToLLVM/MemRefToLLVM.h"
 #include "mlir/Conversion/NVVMToLLVM/NVVMToLLVM.h"
 #include "mlir/Dialect/Func/Extensions/AllExtensions.h"
@@ -29,6 +33,10 @@
 /// individually register the specific extensions that are useful for the
 /// pipelines and transformations you are using.
 inline void registerAllExtensions(DialectRegistry &registry) {
+  arith::registerConvertArithToLLVMInterface(registry);
+  registerConvertAsyncToLLVMInterface(registry);
+  registerConvertComplexToLLVMInterface(registry);
+  cf::registerConvertControlFlowToLLVMInterface(registry);
   func::registerAllExtensions(registry);
   registerConvertMemRefToLLVMInterface(registry);
   registerConvertNVVMToLLVMInterface(registry);
diff --git a/mlir/lib/Conversion/ArithToLLVM/ArithToLLVM.cpp b/mlir/lib/Conversion/ArithToLLVM/ArithToLLVM.cpp
--- a/mlir/lib/Conversion/ArithToLLVM/ArithToLLVM.cpp
+++ b/mlir/lib/Conversion/ArithToLLVM/ArithToLLVM.cpp
@@ -9,6 +9,7 @@
 #include "mlir/Conversion/ArithToLLVM/ArithToLLVM.h"
 
 #include "mlir/Conversion/ArithCommon/AttrToLLVMConverter.h"
+#include "mlir/Conversion/ConvertToLLVM/ToLLVMInterface.h"
 #include "mlir/Conversion/LLVMCommon/ConversionTarget.h"
 #include "mlir/Conversion/LLVMCommon/VectorPattern.h"
 #include "mlir/Dialect/Arith/IR/Arith.h"
@@ -451,6 +452,35 @@
 };
 } // namespace
 
+//===----------------------------------------------------------------------===//
+// ConvertToLLVMPatternInterface implementation
+//===----------------------------------------------------------------------===//
+
+namespace {
+/// Implement the interface to convert MemRef to LLVM.
+struct ArithToLLVMDialectInterface : public ConvertToLLVMPatternInterface {
+  using ConvertToLLVMPatternInterface::ConvertToLLVMPatternInterface;
+  void loadDependentDialects(MLIRContext *context) const final {
+    context->loadDialect<LLVM::LLVMDialect>();
+  }
+
+  /// Hook for derived dialect interface to provide conversion patterns
+  /// and mark dialect legal for the conversion target.
+  void populateConvertToLLVMConversionPatterns(
+      ConversionTarget &target, LLVMTypeConverter &typeConverter,
+      RewritePatternSet &patterns) const final {
+    arith::populateArithToLLVMConversionPatterns(typeConverter, patterns);
+  }
+};
+} // namespace
+
+void mlir::arith::registerConvertArithToLLVMInterface(
+    DialectRegistry &registry) {
+  registry.addExtension(+[](MLIRContext *ctx, arith::ArithDialect *dialect) {
+    dialect->addInterfaces<ArithToLLVMDialectInterface>();
+  });
+}
+
 //===----------------------------------------------------------------------===//
 // Pattern Population
 //===----------------------------------------------------------------------===//
diff --git a/mlir/lib/Conversion/AsyncToLLVM/AsyncToLLVM.cpp b/mlir/lib/Conversion/AsyncToLLVM/AsyncToLLVM.cpp
--- a/mlir/lib/Conversion/AsyncToLLVM/AsyncToLLVM.cpp
+++ b/mlir/lib/Conversion/AsyncToLLVM/AsyncToLLVM.cpp
@@ -8,6 +8,7 @@
 
 #include "mlir/Conversion/AsyncToLLVM/AsyncToLLVM.h"
 
+#include "mlir/Conversion/ConvertToLLVM/ToLLVMInterface.h"
 #include "mlir/Conversion/FuncToLLVM/ConvertFuncToLLVM.h"
 #include "mlir/Conversion/LLVMCommon/ConversionTarget.h"
 #include "mlir/Conversion/LLVMCommon/Pattern.h"
@@ -1251,3 +1252,32 @@
   target.addDynamicallyLegalOp<AwaitOp, ExecuteOp, async::YieldOp>(
       [&](Operation *op) { return typeConverter.isLegal(op); });
 }
+
+//===----------------------------------------------------------------------===//
+// ConvertToLLVMPatternInterface implementation
+//===----------------------------------------------------------------------===//
+
+namespace {
+/// Implement the interface to convert MemRef to LLVM.
+struct AsyncToLLVMDialectInterface : public ConvertToLLVMPatternInterface {
+  using ConvertToLLVMPatternInterface::ConvertToLLVMPatternInterface;
+  void loadDependentDialects(MLIRContext *context) const final {
+    context->loadDialect<LLVM::LLVMDialect>();
+  }
+
+  /// Hook for derived dialect interface to provide conversion patterns
+  /// and mark dialect legal for the conversion target.
+  void populateConvertToLLVMConversionPatterns(
+      ConversionTarget &target, LLVMTypeConverter &typeConverter,
+      RewritePatternSet &patterns) const final {
+    populateAsyncStructuralTypeConversionsAndLegality(typeConverter, patterns,
+                                                      target);
+  }
+};
+} // namespace
+
+void mlir::registerConvertAsyncToLLVMInterface(DialectRegistry &registry) {
+  registry.addExtension(+[](MLIRContext *ctx, AsyncDialect *dialect) {
+    dialect->addInterfaces<AsyncToLLVMDialectInterface>();
+  });
+}
diff --git a/mlir/lib/Conversion/ComplexToLLVM/ComplexToLLVM.cpp b/mlir/lib/Conversion/ComplexToLLVM/ComplexToLLVM.cpp
--- a/mlir/lib/Conversion/ComplexToLLVM/ComplexToLLVM.cpp
+++ b/mlir/lib/Conversion/ComplexToLLVM/ComplexToLLVM.cpp
@@ -8,6 +8,7 @@
 
 #include "mlir/Conversion/ComplexToLLVM/ComplexToLLVM.h"
 
+#include "mlir/Conversion/ConvertToLLVM/ToLLVMInterface.h"
 #include "mlir/Conversion/LLVMCommon/ConversionTarget.h"
 #include "mlir/Conversion/LLVMCommon/Pattern.h"
 #include "mlir/Dialect/Arith/IR/Arith.h"
@@ -342,3 +343,32 @@
           applyPartialConversion(getOperation(), target, std::move(patterns))))
     signalPassFailure();
 }
+
+//===----------------------------------------------------------------------===//
+// ConvertToLLVMPatternInterface implementation
+//===----------------------------------------------------------------------===//
+
+namespace {
+/// Implement the interface to convert MemRef to LLVM.
+struct ComplexToLLVMDialectInterface : public ConvertToLLVMPatternInterface {
+  using ConvertToLLVMPatternInterface::ConvertToLLVMPatternInterface;
+  void loadDependentDialects(MLIRContext *context) const final {
+    context->loadDialect<LLVM::LLVMDialect>();
+  }
+
+  /// Hook for derived dialect interface to provide conversion patterns
+  /// and mark dialect legal for the conversion target.
+  void populateConvertToLLVMConversionPatterns(
+      ConversionTarget &target, LLVMTypeConverter &typeConverter,
+      RewritePatternSet &patterns) const final {
+    populateComplexToLLVMConversionPatterns(typeConverter, patterns);
+  }
+};
+} // namespace
+
+void mlir::registerConvertComplexToLLVMInterface(DialectRegistry &registry) {
+  registry.addExtension(
+      +[](MLIRContext *ctx, complex::ComplexDialect *dialect) {
+        dialect->addInterfaces<ComplexToLLVMDialectInterface>();
+      });
+}
diff --git a/mlir/lib/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.cpp b/mlir/lib/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.cpp
--- a/mlir/lib/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.cpp
+++ b/mlir/lib/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.cpp
@@ -13,6 +13,7 @@
 
 #include "mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h"
 
+#include "mlir/Conversion/ConvertToLLVM/ToLLVMInterface.h"
 #include "mlir/Conversion/LLVMCommon/ConversionTarget.h"
 #include "mlir/Conversion/LLVMCommon/Pattern.h"
 #include "mlir/Conversion/LLVMCommon/VectorPattern.h"
@@ -287,3 +288,34 @@
   }
 };
 } // namespace
+
+//===----------------------------------------------------------------------===//
+// ConvertToLLVMPatternInterface implementation
+//===----------------------------------------------------------------------===//
+
+namespace {
+/// Implement the interface to convert MemRef to LLVM.
+struct ControlFlowToLLVMDialectInterface
+    : public ConvertToLLVMPatternInterface {
+  using ConvertToLLVMPatternInterface::ConvertToLLVMPatternInterface;
+  void loadDependentDialects(MLIRContext *context) const final {
+    context->loadDialect<LLVM::LLVMDialect>();
+  }
+
+  /// Hook for derived dialect interface to provide conversion patterns
+  /// and mark dialect legal for the conversion target.
+  void populateConvertToLLVMConversionPatterns(
+      ConversionTarget &target, LLVMTypeConverter &typeConverter,
+      RewritePatternSet &patterns) const final {
+    mlir::cf::populateControlFlowToLLVMConversionPatterns(typeConverter,
+                                                          patterns);
+  }
+};
+} // namespace
+
+void mlir::cf::registerConvertControlFlowToLLVMInterface(
+    DialectRegistry &registry) {
+  registry.addExtension(+[](MLIRContext *ctx, cf::ControlFlowDialect *dialect) {
+    dialect->addInterfaces<ControlFlowToLLVMDialectInterface>();
+  });
+}
diff --git a/mlir/test/Conversion/ArithToLLVM/arith-to-llvm.mlir b/mlir/test/Conversion/ArithToLLVM/arith-to-llvm.mlir
--- a/mlir/test/Conversion/ArithToLLVM/arith-to-llvm.mlir
+++ b/mlir/test/Conversion/ArithToLLVM/arith-to-llvm.mlir
@@ -1,5 +1,9 @@
 // RUN: mlir-opt -pass-pipeline="builtin.module(func.func(convert-arith-to-llvm))" %s -split-input-file | FileCheck %s
 
+// Same below, but using the `ConvertToLLVMPatternInterface` entry point
+// and the generic `convert-to-llvm` pass.
+// RUN: mlir-opt --convert-to-llvm --split-input-file %s
+
 // CHECK-LABEL: @vector_ops
 func.func @vector_ops(%arg0: vector<4xf32>, %arg1: vector<4xi1>, %arg2: vector<4xi64>, %arg3: vector<4xi64>) -> vector<4xf32> {
 // CHECK-NEXT:  %0 = llvm.mlir.constant(dense<4.200000e+01> : vector<4xf32>) : vector<4xf32>
diff --git a/mlir/test/Conversion/AsyncToLLVM/convert-to-llvm.mlir b/mlir/test/Conversion/AsyncToLLVM/convert-to-llvm.mlir
--- a/mlir/test/Conversion/AsyncToLLVM/convert-to-llvm.mlir
+++ b/mlir/test/Conversion/AsyncToLLVM/convert-to-llvm.mlir
@@ -1,5 +1,9 @@
 // RUN: mlir-opt %s -split-input-file -async-to-async-runtime -convert-async-to-llvm='use-opaque-pointers=1' | FileCheck %s
 
+// Same below, but using the `ConvertToLLVMPatternInterface` entry point
+// and the generic `convert-to-llvm` pass.
+// RUN: mlir-opt -async-to-async-runtime --convert-to-llvm --split-input-file %s
+
 // CHECK-LABEL: reference_counting
 func.func @reference_counting(%arg0: !async.token) {
   // CHECK: %[[C2:.*]] = arith.constant 2 : i64
diff --git a/mlir/test/Conversion/ComplexToLLVM/convert-to-llvm.mlir b/mlir/test/Conversion/ComplexToLLVM/convert-to-llvm.mlir
--- a/mlir/test/Conversion/ComplexToLLVM/convert-to-llvm.mlir
+++ b/mlir/test/Conversion/ComplexToLLVM/convert-to-llvm.mlir
@@ -1,5 +1,9 @@
 // RUN: mlir-opt %s -convert-complex-to-llvm | FileCheck %s
 
+// Same below, but using the `ConvertToLLVMPatternInterface` entry point
+// and the generic `convert-to-llvm` pass.
+// RUN: mlir-opt --convert-to-llvm --split-input-file %s
+
 // CHECK-LABEL: func @complex_create
 // CHECK-SAME:    (%[[REAL0:.*]]: f32, %[[IMAG0:.*]]: f32)
 // CHECK-NEXT:    %[[CPLX0:.*]] = llvm.mlir.undef : !llvm.struct<(f32, f32)>
diff --git a/mlir/test/Conversion/ControlFlowToLLVM/assert.mlir b/mlir/test/Conversion/ControlFlowToLLVM/assert.mlir
--- a/mlir/test/Conversion/ControlFlowToLLVM/assert.mlir
+++ b/mlir/test/Conversion/ControlFlowToLLVM/assert.mlir
@@ -1,5 +1,9 @@
 // RUN: mlir-opt %s -convert-cf-to-llvm='use-opaque-pointers=1' | FileCheck %s
 
+// Same below, but using the `ConvertToLLVMPatternInterface` entry point
+// and the generic `convert-to-llvm` pass.
+// RUN: mlir-opt --convert-to-llvm --split-input-file %s
+
 func.func @main() {
   %a = arith.constant 0 : i1
   cf.assert %a, "assertion foo"