Revert "Enable map dependency to in-flight compilation info."

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index c6b911feecc8e0d48972e9a57fd046daf84e1421..5fc107f94306c062b4a0ae506e031836646ceb7e 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -106,9 +106,6 @@ void CompilationInfo::Initialize(Isolate* isolate, Mode mode, Zone* zone) {
   opt_count_ = shared_info().is_null() ? 0 : shared_info()->opt_count();
   no_frame_ranges_ = isolate->cpu_profiler()->is_profiling()
                    ? new List<OffsetRange>(2) : NULL;
-  for (int i = 0; i < DependentCode::kGroupCount; i++) {
-    dependent_maps_[i] = NULL;
-  }
   if (mode == STUB) {
     mode_ = STUB;
     return;
@@ -128,41 +125,6 @@ void CompilationInfo::Initialize(Isolate* isolate, Mode mode, Zone* zone) {
 CompilationInfo::~CompilationInfo() {
   delete deferred_handles_;
   delete no_frame_ranges_;
-#ifdef DEBUG
-  // Check that no dependent maps have been added or added dependent maps have
-  // been rolled back or committed.
-  for (int i = 0; i < DependentCode::kGroupCount; i++) {
-    ASSERT_EQ(NULL, dependent_maps_[i]);
-  }
-#endif  // DEBUG
-}
-
-
-void CompilationInfo::CommitDependentMaps(Handle<Code> code) {
-  for (int i = 0; i < DependentCode::kGroupCount; i++) {
-    ZoneList<Handle<Map> >* group_maps = dependent_maps_[i];
-    if (group_maps == NULL) continue;
-    ASSERT(!object_wrapper_.is_null());
-    for (int j = 0; j < group_maps->length(); j++) {
-      group_maps->at(j)->dependent_code()->UpdateToFinishedCode(
-          static_cast<DependentCode::DependencyGroup>(i), this, *code);
-    }
-    dependent_maps_[i] = NULL;  // Zone-allocated, no need to delete.
-  }
-}
-
-
-void CompilationInfo::RollbackDependentMaps() {
-  // Unregister from all dependent maps if not yet committed.
-  for (int i = 0; i < DependentCode::kGroupCount; i++) {
-    ZoneList<Handle<Map> >* group_maps = dependent_maps_[i];
-    if (group_maps == NULL) continue;
-    for (int j = 0; j < group_maps->length(); j++) {
-      group_maps->at(j)->dependent_code()->RemoveCompilationInfo(
-          static_cast<DependentCode::DependencyGroup>(i), this);
-    }
-    dependent_maps_[i] = NULL;  // Zone-allocated, no need to delete.
-  }
 }
 
 
@@ -1020,7 +982,7 @@ void Compiler::InstallOptimizedCode(OptimizingCompiler* optimizing_compiler) {
   // The function may have already been optimized by OSR.  Simply continue.
   // Except when OSR already disabled optimization for some reason.
   if (info->shared_info()->optimization_disabled()) {
-    info->AbortOptimization();
+    info->SetCode(Handle<Code>(info->shared_info()->code()));
     InstallFullCode(*info);
     if (FLAG_trace_parallel_recompilation) {
       PrintF("  ** aborting optimization for ");
@@ -1038,11 +1000,9 @@ void Compiler::InstallOptimizedCode(OptimizingCompiler* optimizing_compiler) {
   // If crankshaft succeeded, install the optimized code else install
   // the unoptimized code.
   OptimizingCompiler::Status status = optimizing_compiler->last_status();
-  if (info->HasAbortedDueToDependentMap()) {
-    info->set_bailout_reason("bailed out due to dependent map");
-    status = optimizing_compiler->AbortOptimization();
-  } else if (status != OptimizingCompiler::SUCCEEDED) {
-    info->set_bailout_reason("failed/bailed out last time");
+  if (status != OptimizingCompiler::SUCCEEDED) {
+    optimizing_compiler->info()->set_bailout_reason(
+        "failed/bailed out last time");
     status = optimizing_compiler->AbortOptimization();
   } else {
     status = optimizing_compiler->GenerateAndInstallCode();