[mlir][bufferization] Clean up imports and code comments

Differential Revision: https://reviews.llvm.org/D126427

mlir/include/mlir/Dialect/Bufferization/IR/BufferizableOpInterface.h

@@ -9,20 +9,13 @@
 #ifndef MLIR_DIALECT_BUFFERIZATION_IR_BUFFERIZABLEOPINTERFACE_H_
 #define MLIR_DIALECT_BUFFERIZATION_IR_BUFFERIZABLEOPINTERFACE_H_
 
-#include <utility>
-
-#include "mlir/IR/BlockAndValueMapping.h"
-#include "mlir/IR/Builders.h"
-#include "mlir/IR/BuiltinOps.h"
-#include "mlir/IR/BuiltinTypes.h"
 #include "mlir/IR/Operation.h"
 #include "mlir/IR/PatternMatch.h"
 #include "mlir/Support/LLVM.h"
 #include "llvm/ADT/SetVector.h"
 
 namespace mlir {
-class BlockAndValueMapping;
-class DominanceInfo;
+class OpBuilder;
 
 namespace bufferization {
 

mlir/include/mlir/Dialect/Bufferization/Transforms/Bufferize.h

@@ -1,4 +1,4 @@
-//===- Bufferize.h - Bufferization utilities --------------------*- C++ -*-===//
+//===- Bufferize.h - Bufferization Utilities --------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -9,14 +9,10 @@
 // We use the term "bufferize" to mean conversion from tensor types to
 // memref types.
 //
-// Generally speaking, for each op that operates on tensor types, a conversion
-// pattern needs to be written. The infrastructure in this file assists in
-// defining these conversion patterns in a composable way.
-//
-// Bufferization conversion patterns should generally use the ordinary
-// conversion pattern classes (e.g. OpConversionPattern). A TypeConverter
-// (accessible with getTypeConverter()) is available if needed for converting
-// types.
+// Generally speaking, for each op that operates on tensor types, the
+// `BufferizableOpInterface` needs to be implemented. This file contains the
+// bufferization driver that is responsible for bufferizing the ops in the right
+// order, etc.
 //
 //===----------------------------------------------------------------------===//
 

mlir/include/mlir/Dialect/Bufferization/Transforms/OneShotAnalysis.h

@@ -10,7 +10,6 @@
 #define MLIR_DIALECT_BUFFERIZATION_TRANSFORMS_ONESHOTANALYSIS_H
 
 #include "mlir/Dialect/Bufferization/IR/BufferizableOpInterface.h"
-#include "mlir/IR/BuiltinOps.h"
 #include "llvm/ADT/EquivalenceClasses.h"
 
 namespace mlir {