MIPS: Also support smi in load-ICs.

src/mips/stub-cache-mips.cc

Index: src/mips/stub-cache-mips.cc
diff --git a/src/mips/stub-cache-mips.cc b/src/mips/stub-cache-mips.cc
index 5236d8706ae76372f6e3873b52ce2affa10adfd4..29d795d91887b76cb05ab451d1f0943c14cfe0a5 100644
--- a/src/mips/stub-cache-mips.cc
+++ b/src/mips/stub-cache-mips.cc
@@ -3069,16 +3069,24 @@ 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;
   __ lw(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++;
+      if (map.is_identical_to(heap_number_map)) {
+        ASSERT(!number_case.is_unused());
+        __ bind(&number_case);
+      }
       __ Jump(handlers->at(current), RelocInfo::CODE_TARGET,
           eq, map_reg, Operand(receiver_maps->at(current)));
     }