MIPS: Avoid unnecessary branches in array constructor stubs.

src/mips/macro-assembler-mips.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1176 matching lines @@
   // See comments at the beginning of CEntryStub::Generate.
   inline void PrepareCEntryArgs(int num_args) {
     li(s0, num_args);
     li(s1, (num_args - 1) * kPointerSize);
   }
 
   inline void PrepareCEntryFunction(const ExternalReference& ref) {
     li(s2, Operand(ref));
   }
 
+#define COND_ARGS Condition cond = al, Register rs = zero_reg, \
+const Operand& rt = Operand(zero_reg), BranchDelaySlot bd = PROTECT
+
   // Call a code stub.
   void CallStub(CodeStub* stub,
                 TypeFeedbackId ast_id = TypeFeedbackId::None(),
-                Condition cond = cc_always,
-                Register r1 = zero_reg,
-                const Operand& r2 = Operand(zero_reg),
-                BranchDelaySlot bd = PROTECT);
+                COND_ARGS);
 
   // Tail call a code stub (jump).
-  void TailCallStub(CodeStub* stub);
+  void TailCallStub(CodeStub* stub, COND_ARGS);
+
+#undef COND_ARGS
 
   void CallJSExitStub(CodeStub* stub);
 
   // Call a runtime routine.
   void CallRuntime(const Runtime::Function* f,
                    int num_arguments,
                    SaveFPRegsMode save_doubles = kDontSaveFPRegs);
   void CallRuntimeSaveDoubles(Runtime::FunctionId id) {
     const Runtime::Function* function = Runtime::FunctionForId(id);
     CallRuntime(function, function->nargs, kSaveFPRegs);
@@ skipping 478 matching lines @@
 #define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x)
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_MACRO_ASSEMBLER_MIPS_H_