MIPS: Updates to maintain flag --vector-ics

Port r24458 (18af11b)

Original commit message:
Experimental feature vector-ics needs some maintenance.

BUG=
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/636163002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24467 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips64/debug-mips64.cc

@@ -190,7 +190,11 @@ void DebugCodegen::GenerateCallICStubDebugBreak(MacroAssembler* masm) {
 void DebugCodegen::GenerateLoadICDebugBreak(MacroAssembler* masm) {
   Register receiver = LoadDescriptor::ReceiverRegister();
   Register name = LoadDescriptor::NameRegister();
-  Generate_DebugBreakCallHelper(masm, receiver.bit() | name.bit(), 0);
+  RegList regs = receiver.bit() | name.bit();
+  if (FLAG_vector_ics) {
+    regs |= VectorLoadICTrampolineDescriptor::SlotRegister().bit();
+  }
+  Generate_DebugBreakCallHelper(masm, regs, 0);
 }
 
 

src/mips64/full-codegen-mips64.cc

@@ -1346,7 +1346,13 @@ void FullCodeGenerator::EmitLoadHomeObject(SuperReference* expr) {
   Handle<Symbol> home_object_symbol(isolate()->heap()->home_object_symbol());
   __ li(LoadDescriptor::NameRegister(), home_object_symbol);
 
-  CallLoadIC(NOT_CONTEXTUAL, expr->HomeObjectFeedbackId());
+  if (FLAG_vector_ics) {
+    __ li(VectorLoadICDescriptor::SlotRegister(),
+          Operand(Smi::FromInt(expr->HomeObjectFeedbackSlot())));
+    CallLoadIC(NOT_CONTEXTUAL);
+  } else {
+    CallLoadIC(NOT_CONTEXTUAL, expr->HomeObjectFeedbackId());
+  }
 
   Label done;
   __ Branch(&done, ne, v0, Operand(isolate()->factory()->undefined_value()));