Deoptimization support for accessors.

src/deoptimizer.cc

Index: src/deoptimizer.cc
diff --git a/src/deoptimizer.cc b/src/deoptimizer.cc
index c14ae991225ea9d2c2cef9b396559164de6dd5b9..8aeee1ad212b2e8607f58ec15440c0b4065e6b31 100644
--- a/src/deoptimizer.cc
+++ b/src/deoptimizer.cc
@@ -589,7 +589,19 @@ void Deoptimizer::DoComputeOutputFrames() {
       case Translation::CONSTRUCT_STUB_FRAME:
         DoComputeConstructStubFrame(&iterator, i);
         break;
-      default:
+      case Translation::SETTER_STUB_FRAME:
+        DoComputeSetterStubFrame(&iterator, i);
+        break;
+      case Translation::BEGIN:
+      case Translation::REGISTER:
+      case Translation::INT32_REGISTER:
+      case Translation::DOUBLE_REGISTER:
+      case Translation::STACK_SLOT:
+      case Translation::INT32_STACK_SLOT:
+      case Translation::DOUBLE_STACK_SLOT:
+      case Translation::LITERAL:
+      case Translation::ARGUMENTS_OBJECT:
+      case Translation::DUPLICATE:
         UNREACHABLE();
         break;
     }
@@ -708,6 +720,7 @@ void Deoptimizer::DoTranslateCommand(TranslationIterator* iterator,
     case Translation::JS_FRAME:
     case Translation::ARGUMENTS_ADAPTOR_FRAME:
     case Translation::CONSTRUCT_STUB_FRAME:
+    case Translation::SETTER_STUB_FRAME:
     case Translation::DUPLICATE:
       UNREACHABLE();
       return;
@@ -895,6 +908,7 @@ bool Deoptimizer::DoOsrTranslateCommand(TranslationIterator* iterator,
     case Translation::JS_FRAME:
     case Translation::ARGUMENTS_ADAPTOR_FRAME:
     case Translation::CONSTRUCT_STUB_FRAME:
+    case Translation::SETTER_STUB_FRAME:
     case Translation::DUPLICATE:
       UNREACHABLE();  // Malformed input.
        return false;
@@ -1350,6 +1364,12 @@ void Translation::BeginConstructStubFrame(int literal_id, unsigned height) {
 }
 
 
+void Translation::BeginSetterStubFrame(int literal_id) {
+  buffer_->Add(SETTER_STUB_FRAME, zone());
+  buffer_->Add(literal_id, zone());
+}
+
+
 void Translation::BeginArgumentsAdaptorFrame(int literal_id, unsigned height) {
   buffer_->Add(ARGUMENTS_ADAPTOR_FRAME, zone());
   buffer_->Add(literal_id, zone());
@@ -1424,6 +1444,7 @@ int Translation::NumberOfOperandsFor(Opcode opcode) {
     case ARGUMENTS_OBJECT:
     case DUPLICATE:
       return 0;
+    case SETTER_STUB_FRAME:
     case REGISTER:
     case INT32_REGISTER:
     case DOUBLE_REGISTER:
@@ -1456,6 +1477,8 @@ const char* Translation::StringFor(Opcode opcode) {
       return "ARGUMENTS_ADAPTOR_FRAME";
     case CONSTRUCT_STUB_FRAME:
       return "CONSTRUCT_STUB_FRAME";
+    case SETTER_STUB_FRAME:
+      return "SETTER_STUB_FRAME";
     case REGISTER:
       return "REGISTER";
     case INT32_REGISTER:
@@ -1512,6 +1535,7 @@ SlotRef SlotRef::ComputeSlotForNextArgument(TranslationIterator* iterator,
     case Translation::JS_FRAME:
     case Translation::ARGUMENTS_ADAPTOR_FRAME:
     case Translation::CONSTRUCT_STUB_FRAME:
+    case Translation::SETTER_STUB_FRAME:
       // Peeled off before getting here.
       break;