PPC: [interpreter] Add Interpreter{Entry,Exit}Trampoline builtins. Port c5dd553cf3a44cd8c17958a5951…

src/compiler/ppc/linkage-ppc.cc

Index: src/compiler/ppc/linkage-ppc.cc
diff --git a/src/compiler/ppc/linkage-ppc.cc b/src/compiler/ppc/linkage-ppc.cc
index ebdaaa0a73c6b5e6199a861d912071b72b0698f4..011f79563e23e7f48c5f86eeb846f172d8bd6a1f 100644
--- a/src/compiler/ppc/linkage-ppc.cc
+++ b/src/compiler/ppc/linkage-ppc.cc
@@ -17,9 +17,15 @@ struct PPCLinkageHelperTraits {
   static Register ReturnValue2Reg() { return r4; }
   static Register JSCallFunctionReg() { return r4; }
   static Register ContextReg() { return cp; }
-  static Register InterpreterBytecodeOffsetReg() { return r14; }
-  static Register InterpreterBytecodeArrayReg() { return r15; }
-  static Register InterpreterDispatchTableReg() { return r16; }
+  static Register InterpreterBytecodeOffsetReg() {
+    return kInterpreterBytecodeOffsetRegister;
+  }
+  static Register InterpreterBytecodeArrayReg() {
+    return kInterpreterBytecodeArrayRegister;
+  }
+  static Register InterpreterDispatchTableReg() {
+    return kInterpreterDispatchTableRegister;
+  }
   static Register RuntimeCallFunctionReg() { return r4; }
   static Register RuntimeCallArgCountReg() { return r3; }
 };