[mips] Fix Load/StoreGlobalContext stubs.

src/mips64/code-stubs-mips64.cc

Index: src/mips64/code-stubs-mips64.cc
diff --git a/src/mips64/code-stubs-mips64.cc b/src/mips64/code-stubs-mips64.cc
index d8797ffab7895c77b54bf29eca1c4c77403d9458..dad5e75fd75b47f3f7d0d560aefa0cbdd71be4aa 100644
--- a/src/mips64/code-stubs-mips64.cc
+++ b/src/mips64/code-stubs-mips64.cc
@@ -5316,7 +5316,7 @@ void LoadGlobalViaContextStub::Generate(MacroAssembler* masm) {
 
   // Load the PropertyCell value at the specified slot.
   __ dsll(at, slot_reg, kPointerSizeLog2);
-  __ Daddu(at, at, Operand(cp));
+  __ Daddu(at, at, Operand(context_reg));
   __ Daddu(at, at, Context::SlotOffset(0));
   __ ld(result_reg, MemOperand(at));
   __ ld(result_reg, FieldMemOperand(result_reg, PropertyCell::kValueOffset));
@@ -5329,8 +5329,7 @@ void LoadGlobalViaContextStub::Generate(MacroAssembler* masm) {
   // Fallback to the runtime.
   __ bind(&slow_case);
   __ SmiTag(slot_reg);
-  __ Drop(1);  // Pop return address.
-  __ Push(slot_reg, name_reg, result_reg);
+  __ Push(slot_reg, name_reg);
   __ TailCallRuntime(Runtime::kLoadGlobalViaContext, 2, 1);
 }
 
@@ -5358,7 +5357,7 @@ void StoreGlobalViaContextStub::Generate(MacroAssembler* masm) {
 
   // Load the PropertyCell at the specified slot.
   __ dsll(at, slot_reg, kPointerSizeLog2);
-  __ Daddu(at, at, Operand(cp));
+  __ Daddu(at, at, Operand(context_reg));
   __ Daddu(at, at, Context::SlotOffset(0));
   __ ld(cell_reg, MemOperand(at));
 
@@ -5441,8 +5440,7 @@ void StoreGlobalViaContextStub::Generate(MacroAssembler* masm) {
   // Fallback to the runtime.
   __ bind(&slow_case);
   __ SmiTag(slot_reg);
-  __ Drop(1);  // Pop return address.
-  __ Push(slot_reg, name_reg, value_reg, cell_reg);
+  __ Push(slot_reg, name_reg, value_reg);
   __ TailCallRuntime(is_strict(language_mode())
                          ? Runtime::kStoreGlobalViaContext_Strict
                          : Runtime::kStoreGlobalViaContext_Sloppy,