Contribution of PowerPC port.

src/ppc/codegen-ppc.h

 // Copyright 2011 the V8 project authors. All rights reserved.
+//
+// Copyright IBM Corp. 2012, 2013. 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_ARM_CODEGEN_ARM_H_
-#define V8_ARM_CODEGEN_ARM_H_
+#ifndef V8_PPC_CODEGEN_PPC_H_
+#define V8_PPC_CODEGEN_PPC_H_
 
 #include "src/ast.h"
 #include "src/ic-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
 enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
 
 
 class StringCharLoadGenerator : public AllStatic {
  public:
   // Generates the code for handling different string types and loading the
   // indexed character into |result|.  We expect |index| as untagged input and
   // |result| as untagged output.
-  static void Generate(MacroAssembler* masm,
-                       Register string,
-                       Register index,
-                       Register result,
-                       Label* call_runtime);
+  static void Generate(MacroAssembler* masm, Register string, Register index,
+                       Register result, Label* call_runtime);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator);
 };
 
-
 class MathExpGenerator : public AllStatic {
  public:
   // Register input isn't modified. All other registers are clobbered.
-  static void EmitMathExp(MacroAssembler* masm,
-                          DwVfpRegister input,
-                          DwVfpRegister result,
-                          DwVfpRegister double_scratch1,
-                          DwVfpRegister double_scratch2,
-                          Register temp1,
-                          Register temp2,
-                          Register temp3);
+  static void EmitMathExp(MacroAssembler* masm, DoubleRegister input,
+                          DoubleRegister result, DoubleRegister double_scratch1,
+                          DoubleRegister double_scratch2, Register temp1,
+                          Register temp2, Register temp3);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MathExpGenerator);
 };
+}
+}  // namespace v8::internal
 
-} }  // namespace v8::internal
-
-#endif  // V8_ARM_CODEGEN_ARM_H_
+#endif  // V8_PPC_CODEGEN_PPC_H_