MIPS: Continue learning for calls in crankshaft.

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index c22243d9588fbb6d836dfb47a8842e2d9852ecfb..faa8c9bdd8d8fc22a2f3f734d085839875eba1ea 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -4053,8 +4053,30 @@ void LCodeGen::DoCallFunction(LCallFunction* instr) {
   DCHECK(ToRegister(instr->result()).is(v0));
 
   int arity = instr->arity();
-  CallFunctionStub stub(isolate(), arity, instr->hydrogen()->function_flags());
-  CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
+  CallFunctionFlags flags = instr->hydrogen()->function_flags();
+  if (instr->hydrogen()->HasVectorAndSlot()) {
+    Register slot_register = ToRegister(instr->temp_slot());
+    Register vector_register = ToRegister(instr->temp_vector());
+    DCHECK(slot_register.is(a3));
+    DCHECK(vector_register.is(a2));
+
+    AllowDeferredHandleDereference vector_structure_check;
+    Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector();
+    int index = vector->GetIndex(instr->hydrogen()->slot());
+
+    __ li(vector_register, vector);
+    __ li(slot_register, Operand(Smi::FromInt(index)));
+
+    CallICState::CallType call_type =
+        (flags & CALL_AS_METHOD) ? CallICState::METHOD : CallICState::FUNCTION;
+
+    Handle<Code> ic =
+        CodeFactory::CallICInOptimizedCode(isolate(), arity, call_type).code();
+    CallCode(ic, RelocInfo::CODE_TARGET, instr);
+  } else {
+    CallFunctionStub stub(isolate(), arity, flags);
+    CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
+  }
 }