MIPS: Make TestJSArrayForAllocationMemento less awkward.

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 1502 matching lines @@
 
   // Expects object in a0 and returns map with validated enum cache
   // in a0.  Assumes that any other register can be used as a scratch.
   void CheckEnumCache(Register null_value, Label* call_runtime);
 
   // AllocationMemento support. Arrays may have an associated
   // AllocationMemento object that can be checked for in order to pretransition
   // to another type.
   // On entry, receiver_reg should point to the array object.
   // scratch_reg gets clobbered.
-  // If allocation info is present, jump to allocation_info_present
-  void TestJSArrayForAllocationMemento(Register receiver_reg,
-                                       Register scratch_reg,
-                                       Condition cond,
-                                       Label* allocation_memento_present);
+  // If allocation info is present, jump to allocation_memento_present.
+  void TestJSArrayForAllocationMemento(
+      Register receiver_reg,
+      Register scratch_reg,
+      Label* no_memento_found,
+      Condition cond = al,
+      Label* allocation_memento_present = NULL);
+
+  void JumpIfJSArrayHasAllocationMemento(Register receiver_reg,
+                                         Register scratch_reg,
+                                         Label* memento_found) {
+    Label no_memento_found;
+    TestJSArrayForAllocationMemento(receiver_reg, scratch_reg,
+                                    &no_memento_found, eq, memento_found);
+    bind(&no_memento_found);
+  }
 
  private:
   void CallCFunctionHelper(Register function,
                            int num_reg_arguments,
                            int num_double_arguments);
 
   void BranchShort(int16_t offset, BranchDelaySlot bdslot = PROTECT);
   void BranchShort(int16_t offset, Condition cond, Register rs,
                    const Operand& rt,
                    BranchDelaySlot bdslot = PROTECT);
@@ skipping 104 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_