Revert 15635: Turn ElementsTransitionAndStore stub into a HydrogenCodeStub

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 5f6616ea07a9d12891d824c19c03e9b8312487e3..7e7125d5cc5a71237e2e05de3e7a04bd63f7e1a2 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -818,6 +818,44 @@ bool ToBooleanStub::Types::CanBeUndetectable() const {
 }
 
 
+void ElementsTransitionAndStoreStub::Generate(MacroAssembler* masm) {
+  Label fail;
+  AllocationSiteMode mode = AllocationSite::GetMode(from_, to_);
+  ASSERT(!IsFastHoleyElementsKind(from_) || IsFastHoleyElementsKind(to_));
+  if (!FLAG_trace_elements_transitions) {
+    if (IsFastSmiOrObjectElementsKind(to_)) {
+      if (IsFastSmiOrObjectElementsKind(from_)) {
+        ElementsTransitionGenerator::
+            GenerateMapChangeElementsTransition(masm, mode, &fail);
+      } else if (IsFastDoubleElementsKind(from_)) {
+        ASSERT(!IsFastSmiElementsKind(to_));
+        ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, &fail);
+      } else {
+        UNREACHABLE();
+      }
+      KeyedStoreStubCompiler::GenerateStoreFastElement(masm,
+                                                       is_jsarray_,
+                                                       to_,
+                                                       store_mode_);
+    } else if (IsFastSmiElementsKind(from_) &&
+               IsFastDoubleElementsKind(to_)) {
+      ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, &fail);
+      KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm,
+                                                             is_jsarray_,
+                                                             store_mode_);
+    } else if (IsFastDoubleElementsKind(from_)) {
+      ASSERT(to_ == FAST_HOLEY_DOUBLE_ELEMENTS);
+      ElementsTransitionGenerator::
+          GenerateMapChangeElementsTransition(masm, mode, &fail);
+    } else {
+      UNREACHABLE();
+    }
+  }
+  masm->bind(&fail);
+  KeyedStoreIC::GenerateRuntimeSetProperty(masm, strict_mode_);
+}
+
+
 void StubFailureTrampolineStub::GenerateAheadOfTime(Isolate* isolate) {
   StubFailureTrampolineStub stub1(NOT_JS_FUNCTION_STUB_MODE);
   StubFailureTrampolineStub stub2(JS_FUNCTION_STUB_MODE);