Contribution of PowerPC port (continuation of 422063005) - currency

src/ppc/frames-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_FRAMES_PPC_H_
 #define V8_PPC_FRAMES_PPC_H_
 
 namespace v8 {
 namespace internal {
 
@@ skipping 39 matching lines @@
                              1 << 28 |  // r28
                              1 << 29 |  // r29
                              1 << 30 |  // r20
                              1 << 31;   // r31
 
 
 const int kNumCalleeSaved = 18;
 
 // Number of registers for which space is reserved in safepoints. Must be a
 // multiple of 8.
-// TODO(regis): Only 8 registers may actually be sufficient. Revisit.
 const int kNumSafepointRegisters = 32;
 
-// Define the list of registers actually saved at safepoints.
-// Note that the number of saved registers may be smaller than the reserved
-// space, i.e. kNumSafepointSavedRegisters <= kNumSafepointRegisters.
-const RegList kSafepointSavedRegisters = kJSCallerSaved | kCalleeSaved;
-const int kNumSafepointSavedRegisters = kNumJSCallerSaved + kNumCalleeSaved;
-
 // The following constants describe the stack frame linkage area as
 // defined by the ABI.  Note that kNumRequiredStackFrameSlots must
 // satisfy alignment requirements (rounding up if required).
 #if V8_TARGET_ARCH_PPC64 && V8_TARGET_LITTLE_ENDIAN
 // [0] back chain
 // [1] condition register save area
 // [2] link register save area
 // [3] TOC save area
 // [4] Parameter1 save area
 // ...
@@ skipping 37 matching lines @@
 
 class EntryFrameConstants : public AllStatic {
  public:
   static const int kCallerFPOffset =
       -(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize);
 };
 
 
 class ExitFrameConstants : public AllStatic {
  public:
-#if V8_OOL_CONSTANT_POOL
-  static const int kFrameSize = 3 * kPointerSize;
-  static const int kConstantPoolOffset = -3 * kPointerSize;
-#else
   static const int kFrameSize = 2 * kPointerSize;
   static const int kConstantPoolOffset = 0;  // Not used.
-#endif
   static const int kCodeOffset = -2 * kPointerSize;
   static const int kSPOffset = -1 * kPointerSize;
 
   // The caller fields are below the frame pointer on the stack.
   static const int kCallerFPOffset = 0 * kPointerSize;
   // The calling JS function is below FP.
   static const int kCallerPCOffset = 1 * kPointerSize;
 
   // FP-relative displacement of the caller's SP.  It points just
   // below the saved PC.
@@ skipping 50 matching lines @@
 }
 
 
 inline void StackHandler::SetFp(Address slot, Address fp) {
   Memory::Address_at(slot) = fp;
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_FRAMES_PPC_H_