PPC: Clean up register save/restore logic.

src/ppc/macro-assembler-ppc.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PPC_MACRO_ASSEMBLER_PPC_H_
 #define V8_PPC_MACRO_ASSEMBLER_PPC_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 134 matching lines @@
   void CallSelf() {
     Handle<Code> self(reinterpret_cast<Code**>(CodeObject().location()));
     Call(self, RelocInfo::CODE_TARGET);
   }
 
   // Register move. May do nothing if the registers are identical.
   void Move(Register dst, Handle<Object> value);
   void Move(Register dst, Register src, Condition cond = al);
   void Move(DoubleRegister dst, DoubleRegister src);
 
-  void MultiPush(RegList regs);
-  void MultiPop(RegList regs);
+  void MultiPush(RegList regs, Register location = sp);
+  void MultiPop(RegList regs, Register location = sp);
+
+  void MultiPushDoubles(RegList dregs, Register location = sp);
+  void MultiPopDoubles(RegList dregs, Register location = sp);
 
   // Load an object from the root table.
   void LoadRoot(Register destination, Heap::RootListIndex index,
                 Condition cond = al);
   // Store an object to the root table.
   void StoreRoot(Register source, Heap::RootListIndex index,
                  Condition cond = al);
 
   // ---------------------------------------------------------------------------
   // GC Support
@@ skipping 714 matching lines @@
   }
 
   void RetOnNoOverflow(void) {
     Label label;
 
     bge(&label, cr0);
     Ret();
     bind(&label);
   }
 
-  // Pushes <count> double values to <location>, starting from d<first>.
-  void SaveFPRegs(Register location, int first, int count);
-
-  // Pops <count> double values from <location>, starting from d<first>.
-  void RestoreFPRegs(Register location, int first, int count);
-
   // ---------------------------------------------------------------------------
   // Runtime calls
 
   // Call a code stub.
   void CallStub(CodeStub* stub, TypeFeedbackId ast_id = TypeFeedbackId::None(),
                 Condition cond = al);
 
   // Call a code stub.
   void TailCallStub(CodeStub* stub, Condition cond = al);
 
@@ skipping 663 matching lines @@
 #define ACCESS_MASM(masm)    \
   masm->stop(__FILE_LINE__); \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_MACRO_ASSEMBLER_PPC_H_