Both HGlobalObject and HGlobalReceiver can be replaced with HLoadNamedField.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index a8d960f93d2b1d0c614f905f7de71561323eb654..bd3189a3e199aaf63d3bc32f63cfc2b8c1d1b858 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -3630,20 +3630,6 @@ void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) {
 }
 
 
-void LCodeGen::DoGlobalObject(LGlobalObject* instr) {
-  Register context = ToRegister(instr->context());
-  Register result = ToRegister(instr->result());
-  __ ldr(result, ContextOperand(context, Context::GLOBAL_OBJECT_INDEX));
-}
-
-
-void LCodeGen::DoGlobalReceiver(LGlobalReceiver* instr) {
-  Register global = ToRegister(instr->global_object());
-  Register result = ToRegister(instr->result());
-  __ ldr(result, FieldMemOperand(global, GlobalObject::kGlobalReceiverOffset));
-}
-
-
 void LCodeGen::CallKnownFunction(Handle<JSFunction> function,
                                  int formal_parameter_count,
                                  int arity,