[turbofan] Output file for C1 visualizer.

src/compiler/pipeline.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/pipeline.h"
 
+#include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
 
 #include "src/base/platform/elapsed-timer.h"
 #include "src/compiler/ast-graph-builder.h"
 #include "src/compiler/basic-block-instrumentor.h"
 #include "src/compiler/change-lowering.h"
 #include "src/compiler/code-generator.h"
 #include "src/compiler/graph-replay.h"
 #include "src/compiler/graph-visualizer.h"
 #include "src/compiler/instruction.h"
@@ skipping 66 matching lines @@
 
 static inline bool VerifyGraphs() {
 #ifdef DEBUG
   return true;
 #else
   return FLAG_turbo_verify;
 #endif
 }
 
 
+void Pipeline::PrintCompilationStart() {
+  std::ofstream turbo_cfg_stream("turbo.cfg",

[Vyacheslav Egorov (Google), 2014/10/13 07:42:10]

consider mangling the name with PID so it works from multiprocess application
like Chrome

+                                 std::fstream::out | std::fstream::app);
+  turbo_cfg_stream << AsC1VCompilation(info());
+}
+
+
 void Pipeline::VerifyAndPrintGraph(Graph* graph, const char* phase) {
   if (FLAG_trace_turbo) {
     char buffer[256];
     Vector<char> filename(buffer, sizeof(buffer));
+    SmartArrayPointer<char> functionname;
     if (!info_->shared_info().is_null()) {
-      SmartArrayPointer<char> functionname =
-          info_->shared_info()->DebugName()->ToCString();
+      functionname = info_->shared_info()->DebugName()->ToCString();
       if (strlen(functionname.get()) > 0) {
         SNPrintF(filename, "turbo-%s-%s", functionname.get(), phase);
       } else {
         SNPrintF(filename, "turbo-%p-%s", static_cast<void*>(info_), phase);
       }
     } else {
       SNPrintF(filename, "turbo-none-%s", phase);
     }
     std::replace(filename.start(), filename.start() + filename.length(), ' ',
                  '_');
@@ skipping 15 matching lines @@
     fclose(json_file);
 
     OFStream os(stdout);
     os << "-- " << phase << " graph printed to file " << filename.start()
        << "\n";
   }
   if (VerifyGraphs()) Verifier::Run(graph);
 }
 
 
+void Pipeline::PrintScheduleAndInstructions(
+    const char* phase, const Schedule* schedule,
+    const InstructionSequence* instructions) {
+  std::ofstream turbo_cfg_stream("turbo.cfg",
+                                 std::fstream::out | std::fstream::app);
+  turbo_cfg_stream << AsC1V(phase, schedule, instructions);
+}
+
+
+void Pipeline::PrintAllocator(const char* phase,
+                              const RegisterAllocator* allocator) {
+  std::ofstream turbo_cfg_stream("turbo.cfg",
+                                 std::fstream::out | std::fstream::app);
+  turbo_cfg_stream << AsC1VAllocator(phase, allocator);
+}
+
+
 class AstGraphBuilderWithPositions : public AstGraphBuilder {
  public:
   explicit AstGraphBuilderWithPositions(CompilationInfo* info, JSGraph* jsgraph,
                                         SourcePositionTable* source_positions)
       : AstGraphBuilder(info, jsgraph), source_positions_(source_positions) {}
 
   bool CreateGraph() {
     SourcePositionTable::Scope pos(source_positions_,
                                    SourcePosition::Unknown());
     return AstGraphBuilder::CreateGraph();
@@ skipping 36 matching lines @@
   }
 
   if (FLAG_turbo_stats) isolate()->GetTStatistics()->Initialize(info_);
 
   if (FLAG_trace_turbo) {
     OFStream os(stdout);
     os << "---------------------------------------------------\n"
        << "Begin compiling method "
        << info()->function()->debug_name()->ToCString().get()
        << " using Turbofan" << std::endl;
+    PrintCompilationStart();
   }
 
   // Build the graph.
   Graph graph(zone());
   SourcePositionTable source_positions(&graph);
   source_positions.AddDecorator();
   // TODO(turbofan): there is no need to type anything during initial graph
   // construction.  This is currently only needed for the node cache, which the
   // typer could sweep over later.
   Typer typer(zone());
@@ skipping 197 matching lines @@
   // Select and schedule instructions covering the scheduled graph.
   {
     InstructionSelector selector(&sequence, source_positions);
     selector.SelectInstructions();
   }
 
   if (FLAG_trace_turbo) {
     OFStream os(stdout);
     os << "----- Instruction sequence before register allocation -----\n"
        << sequence;
+    PrintScheduleAndInstructions("CodeGen", schedule, &sequence);
   }
 
   // Allocate registers.
   {
     int node_count = graph->NodeCount();
     if (node_count > UnallocatedOperand::kMaxVirtualRegisters) {
       linkage->info()->AbortOptimization(kNotEnoughVirtualRegistersForValues);
       return Handle<Code>::null();
     }
     RegisterAllocator allocator(&sequence);
     if (!allocator.Allocate()) {
       linkage->info()->AbortOptimization(kNotEnoughVirtualRegistersRegalloc);
       return Handle<Code>::null();
     }
+    if (FLAG_trace_turbo) {
+      PrintAllocator("CodeGen", &allocator);
+    }
   }
 
   if (FLAG_trace_turbo) {
     OFStream os(stdout);
     os << "----- Instruction sequence after register allocation -----\n"
        << sequence;
   }
 
   // Generate native sequence.
   CodeGenerator generator(&sequence);
@@ skipping 14 matching lines @@
 }
 
 
 void Pipeline::TearDown() {
   InstructionOperand::TearDownCaches();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8