MIPS: Port to x64 and ARM and some refactoring of ia32.

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 76452f0c956c69bba52bc2fe4c30331f64e89a30..f590a99b61cc4db19d4eedf93ded47205707b126 100644
--- a/src/mips/stub-cache-mips.cc
+++ b/src/mips/stub-cache-mips.cc
@@ -574,7 +574,7 @@ static void GenerateFastApiDirectCall(MacroAssembler* masm,
   // -----------------------------------
   // Get the function and setup the context.
   Handle<JSFunction> function = optimization.constant_function();
-  __ li(t1, Operand(function));
+  __ LoadHeapObject(t1, function);
   __ lw(cp, FieldMemOperand(t1, JSFunction::kContextOffset));
 
   // Pass the additional arguments FastHandleApiCall expects.
@@ -1115,7 +1115,7 @@ void StubCompiler::GenerateLoadConstant(Handle<JSObject> object,
                                         Register scratch1,
                                         Register scratch2,
                                         Register scratch3,
-                                        Handle<Object> value,
+                                        Handle<JSFunction> value,
                                         Handle<String> name,
                                         Label* miss) {
   // Check that the receiver isn't a smi.
@@ -1127,7 +1127,7 @@ void StubCompiler::GenerateLoadConstant(Handle<JSObject> object,
                       scratch1, scratch2, scratch3, name, miss);
 
   // Return the constant value.
-  __ li(v0, Operand(value));
+  __ LoadHeapObject(v0, value);
   __ Ret();
 }
 
@@ -2709,7 +2709,7 @@ Handle<Code> LoadStubCompiler::CompileLoadCallback(
 
 Handle<Code> LoadStubCompiler::CompileLoadConstant(Handle<JSObject> object,
                                                    Handle<JSObject> holder,
-                                                   Handle<Object> value,
+                                                   Handle<JSFunction> value,
                                                    Handle<String> name) {
   // ----------- S t a t e -------------
   //  -- a0    : receiver
@@ -2847,7 +2847,7 @@ Handle<Code> KeyedLoadStubCompiler::CompileLoadConstant(
     Handle<String> name,
     Handle<JSObject> receiver,
     Handle<JSObject> holder,
-    Handle<Object> value) {
+    Handle<JSFunction> value) {
   // ----------- S t a t e -------------
   //  -- ra    : return address
   //  -- a0    : key