Rollback trunk to 3.21.15.

src/mips/builtins-mips.cc

 // 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 815 matching lines @@
   __ mov(a0, ra);
   // Adjust a0 to point to the head of the PlatformCodeAge sequence
   __ Subu(a0, a0,
       Operand((kNoCodeAgeSequenceLength - 1) * Assembler::kInstrSize));
   // Restore the original return address of the function
   __ mov(ra, at);
 
   // The following registers must be saved and restored when calling through to
   // the runtime:
   //   a0 - contains return address (beginning of patch sequence)
-  //   a1 - isolate
+  //   a1 - function object
   RegList saved_regs =
       (a0.bit() | a1.bit() | ra.bit() | fp.bit()) & ~sp.bit();
   FrameScope scope(masm, StackFrame::MANUAL);
   __ MultiPush(saved_regs);
-  __ PrepareCallCFunction(1, 0, a2);
-  __ li(a1, Operand(ExternalReference::isolate_address(masm->isolate())));
+  __ PrepareCallCFunction(1, 0, a1);
   __ CallCFunction(
-      ExternalReference::get_make_code_young_function(masm->isolate()), 2);
+      ExternalReference::get_make_code_young_function(masm->isolate()), 1);
   __ MultiPop(saved_regs);
   __ Jump(a0);
 }
 
 #define DEFINE_CODE_AGE_BUILTIN_GENERATOR(C)                 \
 void Builtins::Generate_Make##C##CodeYoungAgainEvenMarking(  \
     MacroAssembler* masm) {                                  \
   GenerateMakeCodeYoungAgainCommon(masm);                    \
 }                                                            \
 void Builtins::Generate_Make##C##CodeYoungAgainOddMarking(   \
@@ skipping 621 matching lines @@
   __ bind(&dont_adapt_arguments);
   __ Jump(a3);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS