src/v8/src/compiler/graph-replay.cc

   1 // Copyright 2014 the V8 project authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "src/compiler/graph-replay.h"
   6
   7 #include "src/compiler/common-operator.h"
   8 #include "src/compiler/graph.h"
   9 #include "src/compiler/graph-inl.h"
  10 #include "src/compiler/node.h"
  11 #include "src/compiler/operator.h"
  12 #include "src/compiler/operator-properties-inl.h"
  13
  14 namespace v8 {
  15 namespace internal {
  16 namespace compiler {
  17
  18 #ifdef DEBUG
  19
  20 void GraphReplayPrinter::PrintReplay(Graph* graph) {
  21   GraphReplayPrinter replay;
  22   PrintF("  Node* nil = graph.NewNode(common_builder.Dead());\n");
  23   graph->VisitNodeInputsFromEnd(&replay);
  24 }
  25
  26
  27 GenericGraphVisit::Control GraphReplayPrinter::Pre(Node* node) {
  28   PrintReplayOpCreator(node->op());
  29   PrintF("  Node* n%d = graph.NewNode(op", node->id());
  30   for (int i = 0; i < node->InputCount(); ++i) {
  31     PrintF(", nil");
  32   }
  33   PrintF("); USE(n%d);\n", node->id());
  34   return GenericGraphVisit::CONTINUE;
  35 }
  36
  37
  38 void GraphReplayPrinter::PostEdge(Node* from, int index, Node* to) {
  39   PrintF("  n%d->ReplaceInput(%d, n%d);\n", from->id(), index, to->id());
  40 }
  41
  42
  43 void GraphReplayPrinter::PrintReplayOpCreator(const Operator* op) {
  44   IrOpcode::Value opcode = static_cast<IrOpcode::Value>(op->opcode());
  45   const char* builder =
  46       IrOpcode::IsCommonOpcode(opcode) ? "common_builder" : "js_builder";
  47   const char* mnemonic = IrOpcode::IsCommonOpcode(opcode)
  48                              ? IrOpcode::Mnemonic(opcode)
  49                              : IrOpcode::Mnemonic(opcode) + 2;
  50   PrintF("  op = %s.%s(", builder, mnemonic);
  51   switch (opcode) {
  52     case IrOpcode::kParameter:
  53     case IrOpcode::kNumberConstant:
  54       PrintF("0");
  55       break;
  56     case IrOpcode::kLoad:
  57       PrintF("unique_name");
  58       break;
  59     case IrOpcode::kHeapConstant:
  60       PrintF("unique_constant");
  61       break;
  62     case IrOpcode::kPhi:
  63       PrintF("%d", op->InputCount());
  64       break;
  65     case IrOpcode::kEffectPhi:
  66       PrintF("%d", OperatorProperties::GetEffectInputCount(op));
  67       break;
  68     case IrOpcode::kLoop:
  69     case IrOpcode::kMerge:
  70       PrintF("%d", OperatorProperties::GetControlInputCount(op));
  71       break;
  72     default:
  73       break;
  74   }
  75   PrintF(");\n");
  76 }
  77
  78 #endif  // DEBUG
  79 }
  80 }
  81 }  // namespace v8::internal::compiler