LCodeGen::CallKnownFunction gets the function in register.

src/mips/lithium-codegen-mips.h

Index: src/mips/lithium-codegen-mips.h
diff --git a/src/mips/lithium-codegen-mips.h b/src/mips/lithium-codegen-mips.h
index 43316e471b5b055c17a7302c008c3ab4c2d59aba..0fd470ffaf5e61456363fffe3a33eab0d3dd9525 100644
--- a/src/mips/lithium-codegen-mips.h
+++ b/src/mips/lithium-codegen-mips.h
@@ -210,18 +210,11 @@ class LCodeGen: public LCodeGenBase {
                                LInstruction* instr,
                                LOperand* context);
 
-  enum A1State {
-    A1_UNINITIALIZED,
-    A1_CONTAINS_TARGET
-  };
-
   // Generate a direct call to a known function.  Expects the function
   // to be in a1.
   void CallKnownFunction(Handle<JSFunction> function,
-                         int formal_parameter_count,
-                         int arity,
-                         LInstruction* instr,
-                         A1State a1_state);
+                         int formal_parameter_count, int arity,
+                         LInstruction* instr);
 
   void RecordSafepointWithLazyDeopt(LInstruction* instr,
                                     SafepointMode safepoint_mode);