Simplify compares in KeyedStoreIC::GenerateGeneric.

src/x64/ic-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 606 matching lines @@
   __ testb(FieldOperand(rbx, Map::kBitFieldOffset),
            Immediate(1 << Map::kIsAccessCheckNeeded));
   __ j(not_zero, &slow_with_tagged_index);
   // Check that the key is a smi.
   __ JumpIfNotSmi(rcx, &slow_with_tagged_index);
   __ SmiToInteger32(rcx, rcx);
 
   __ CmpInstanceType(rbx, JS_ARRAY_TYPE);
   __ j(equal, &array);
   // Check that the object is some kind of JSObject.
-  __ CmpInstanceType(rbx, FIRST_JS_RECEIVER_TYPE);
+  __ CmpInstanceType(rbx, FIRST_JS_OBJECT_TYPE);
   __ j(below, &slow);
-  __ CmpInstanceType(rbx, JS_PROXY_TYPE);
-  __ j(equal, &slow);
-  __ CmpInstanceType(rbx, JS_FUNCTION_PROXY_TYPE);
-  __ j(equal, &slow);
 
   // Object case: Check key against length in the elements array.
   // rax: value
   // rdx: JSObject
   // rcx: index
   __ movq(rbx, FieldOperand(rdx, JSObject::kElementsOffset));
   // Check that the object is in fast mode and writable.
   __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset),
                  Heap::kFixedArrayMapRootIndex);
   __ j(not_equal, &slow);
@@ skipping 1037 matching lines @@
   Condition cc = *jmp_address == Assembler::kJncShortOpcode
       ? not_zero
       : zero;
   *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64