Version 3.27.34.8 (merged r22616, r22617)

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 6e5ea741bdd0524973f41d487a780d4b0c5c68a8..8fff497eea9f1da5752b5af2342a3508acd7c833 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -2405,6 +2405,9 @@ HInstruction* HGraphBuilder::BuildUncheckedMonomorphicElementAccess(
 
   if (IsGrowStoreMode(store_mode)) {
     NoObservableSideEffectsScope no_effects(this);
+    Representation representation = HStoreKeyed::RequiredValueRepresentation(
+        elements_kind, STORE_TO_INITIALIZED_ENTRY);
+    val = AddUncasted<HForceRepresentation>(val, representation);
     elements = BuildCheckForCapacityGrow(checked_object, elements,
                                          elements_kind, length, key,
                                          is_js_array, access_type);
@@ -2601,9 +2604,7 @@ HInstruction* HGraphBuilder::AddElementAccess(
       val = Add<HClampToUint8>(val);
     }
     return Add<HStoreKeyed>(elements, checked_key, val, elements_kind,
-                            elements_kind == FAST_SMI_ELEMENTS
-                              ? STORE_TO_INITIALIZED_ENTRY
-                              : INITIALIZING_STORE);
+                            STORE_TO_INITIALIZED_ENTRY);
   }
 
   ASSERT(access_type == LOAD);