il_printer.h

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// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
 
#ifndef RUNTIME_VM_COMPILER_BACKEND_IL_PRINTER_H_
#define RUNTIME_VM_COMPILER_BACKEND_IL_PRINTER_H_
 
#if defined(DART_PRECOMPILED_RUNTIME)
#error "AOT runtime should not use compiler sources (including header files)"
#endif  // defined(DART_PRECOMPILED_RUNTIME)
 
#include "platform/text_buffer.h"
#include "vm/compiler/backend/flow_graph.h"
#include "vm/compiler/backend/il.h"
 
namespace dart {
 
class ParsedFunction;
 
// Graph printing.
class FlowGraphPrinter : public ValueObject {
 public:
  static constexpr intptr_t kPrintAll = -1;
 
  explicit FlowGraphPrinter(const FlowGraph& flow_graph,
                            bool print_locations = false)
      : function_(flow_graph.function()),
        block_order_(flow_graph.reverse_postorder()),
        print_locations_(print_locations) {}
 
  // Print the instructions in a block terminated by newlines.  Add "goto N"
  // to the end of the block if it ends with an unconditional jump to
  // another block and that block is not next in reverse postorder.
  void PrintBlocks();
  void PrintInstruction(Instruction* instr);
  static void PrintOneInstruction(Instruction* instr, bool print_locations);
  static void PrintTypeCheck(const ParsedFunction& parsed_function,
                             TokenPosition token_pos,
                             Value* value,
                             const AbstractType& dst_type,
                             const String& dst_name,
                             bool eliminated);
  static void PrintBlock(BlockEntryInstr* block, bool print_locations);
 
  static void PrintGraph(const char* phase, FlowGraph* flow_graph);
 
  // Debugging helper function. If 'num_checks_to_print' is not specified
  // all checks will be printed.
  static void PrintICData(const ICData& ic_data,
                          intptr_t num_checks_to_print = kPrintAll);
 
  // Debugging helper function. If 'num_checks_to_print' is not specified
  // all checks will be printed.
  static void PrintCidRangeData(const CallTargets& ic_data,
                                intptr_t num_checks_to_print = kPrintAll);
 
  static bool ShouldPrint(const Function& function,
                          uint8_t** compiler_pass_filter = nullptr);
 
 private:
  const Function& function_;
  const GrowableArray<BlockEntryInstr*>& block_order_;
  const bool print_locations_;
};
 
}  // namespace dart
 
#endif  // RUNTIME_VM_COMPILER_BACKEND_IL_PRINTER_H_