Also support smi in load-ICs.

src/arm/stub-cache-arm.cc

Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
index a163c530471c42f3ee4ff30f69fe77ec67fb29f9..984c7d5686f6d8be75abc04ae3b7c64dd666e290 100644
--- a/src/arm/stub-cache-arm.cc
+++ b/src/arm/stub-cache-arm.cc
@@ -3054,18 +3054,26 @@ Handle<Code> BaseLoadStoreStubCompiler::CompilePolymorphicIC(
     GenerateNameCheck(name, this->name(), &miss);
   }
 
-  __ JumpIfSmi(receiver(), &miss);
+  Label number_case;
+  Label* smi_target = HasHeapNumberMap(receiver_maps) ? &number_case : &miss;
+  __ JumpIfSmi(receiver(), smi_target);
+
   Register map_reg = scratch1();
 
   int receiver_count = receiver_maps->length();
   int number_of_handled_maps = 0;
   __ ldr(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset));
+  Handle<Map> heap_number_map = isolate()->factory()->heap_number_map();
   for (int current = 0; current < receiver_count; ++current) {
     Handle<Map> map = receiver_maps->at(current);
     if (!map->is_deprecated()) {
       number_of_handled_maps++;
       __ mov(ip, Operand(receiver_maps->at(current)));
       __ cmp(map_reg, ip);
+      if (map.is_identical_to(heap_number_map)) {
+        ASSERT(!number_case.is_unused());
+        __ bind(&number_case);
+      }
       __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, eq);
     }
   }