Both HGlobalObject and HGlobalReceiver can be replaced with HLoadNamedField.

src/mips/lithium-mips.h

Index: src/mips/lithium-mips.h
diff --git a/src/mips/lithium-mips.h b/src/mips/lithium-mips.h
index aefdea5aef8a41fb3f745ae15a9fea1abc151d54..7fa71b2cce297d055d5b7e0b10706d397dcdc41b 100644
--- a/src/mips/lithium-mips.h
+++ b/src/mips/lithium-mips.h
@@ -96,8 +96,6 @@ class LCodeGen;
   V(ForInPrepareMap)                            \
   V(FunctionLiteral)                            \
   V(GetCachedArrayIndex)                        \
-  V(GlobalObject)                               \
-  V(GlobalReceiver)                             \
   V(Goto)                                       \
   V(HasCachedArrayIndexAndBranch)               \
   V(HasInstanceTypeAndBranch)                   \
@@ -1765,30 +1763,6 @@ class LDeclareGlobals V8_FINAL : public LTemplateInstruction<0, 1, 0> {
 };
 
 
-class LGlobalObject V8_FINAL : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LGlobalObject(LOperand* context) {
-    inputs_[0] = context;
-  }
-
-  LOperand* context() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(GlobalObject, "global-object")
-};
-
-
-class LGlobalReceiver V8_FINAL : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LGlobalReceiver(LOperand* global_object) {
-    inputs_[0] = global_object;
-  }
-
-  LOperand* global_object() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(GlobalReceiver, "global-receiver")
-};
-
-
 class LCallJSFunction V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCallJSFunction(LOperand* function) {