[turbofan] Remove architecture-specific linkage files and LinkageTraits. Use macro-assembler-define…

src/ppc/assembler-ppc.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 274 matching lines @@
 const Register r27 = {kRegister_r27_Code};
 const Register r28 = {kRegister_r28_Code};
 const Register r29 = {kRegister_r29_Code};
 const Register r30 = {kRegister_r30_Code};
 const Register fp = {kRegister_fp_Code};
 
 // Give alias names to registers
 const Register cp = {kRegister_r30_Code};  // JavaScript context pointer
 const Register kRootRegister = {kRegister_r29_Code};  // Roots array pointer.
 const Register kConstantPoolRegister = {kRegister_r28_Code};  // Constant pool
-const Register kInterpreterBytecodeOffsetRegister = {
-    kRegister_r14_Code  // Interpreter bytecode offset.
-};
-const Register kInterpreterBytecodeArrayRegister = {
-    kRegister_r15_Code  // Interpreter bytecode array pointer.
-};
-const Register kInterpreterDispatchTableRegister = {
-    kRegister_r16_Code  // Interpreter dispatch table.
-};
 
 // Double word FP register.
 struct DoubleRegister {
   static const int kNumRegisters = 32;
   static const int kMaxNumRegisters = kNumRegisters;
   static const int kNumVolatileRegisters = 14;  // d0-d13
   static const int kSizeInBytes = 8;
 
   static const int kAllocatableLowRangeBegin = 1;
   static const int kAllocatableLowRangeEnd = 12;
@@ skipping 1304 matching lines @@
 
 
 class EnsureSpace BASE_EMBEDDED {
  public:
   explicit EnsureSpace(Assembler* assembler) { assembler->CheckBuffer(); }
 };
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_ASSEMBLER_PPC_H_