Revert of [regexp] Remove remainder of native RegExpExecStub

src/ppc/simulator-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.
 
 
 // Declares a Simulator for PPC instructions if we are not generating a native
 // PPC binary. This Simulator allows us to run and debug PPC code generation on
 // regular desktop machines.
 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro,
 // which will start execution in the Simulator or forwards to the real entry
 // on a PPC HW platform.
 
 #ifndef V8_PPC_SIMULATOR_PPC_H_
 #define V8_PPC_SIMULATOR_PPC_H_
 
 #include "src/allocation.h"
 
 #if !defined(USE_SIMULATOR)
 // Running without a simulator on a native ppc platform.
 
 namespace v8 {
 namespace internal {
 
 // When running without a simulator we call the entry directly.
 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \
   (entry(p0, p1, p2, p3, p4))
 
 typedef int (*ppc_regexp_matcher)(String*, int, const byte*, const byte*, int*,
-                                  int, Address, int, Isolate*);
+                                  int, Address, int, void*, Isolate*);
+
 
 // Call the generated regexp code directly. The code at the entry address
 // should act as a function matching the type ppc_regexp_matcher.
+// The ninth argument is a dummy that reserves the space used for
+// the return address added by the ExitFrame in native calls.
 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
                                    p7, p8)                                     \
-  (FUNCTION_CAST<ppc_regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, p8))
+  (FUNCTION_CAST<ppc_regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7,    \
+                                            NULL, p8))
 
 // The stack limit beyond which we will throw stack overflow errors in
 // generated code. Because generated code on ppc uses the C stack, we
 // just use the C stack limit.
 class SimulatorStack : public v8::internal::AllStatic {
  public:
   static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate,
                                             uintptr_t c_limit) {
     USE(isolate);
     return c_limit;
@@ skipping 438 matching lines @@
 
 // When running with the simulator transition into simulated execution at this
 // point.
 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4)          \
   reinterpret_cast<Object*>(Simulator::current(isolate)->Call(           \
       FUNCTION_ADDR(entry), 5, (intptr_t)p0, (intptr_t)p1, (intptr_t)p2, \
       (intptr_t)p3, (intptr_t)p4))
 
 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
                                    p7, p8)                                     \
-  Simulator::current(isolate)->Call(                                           \
-      entry, 9, (intptr_t)p0, (intptr_t)p1, (intptr_t)p2, (intptr_t)p3,        \
-      (intptr_t)p4, (intptr_t)p5, (intptr_t)p6, (intptr_t)p7, (intptr_t)p8)
+  Simulator::current(isolate)->Call(entry, 10, (intptr_t)p0, (intptr_t)p1,     \
+                                    (intptr_t)p2, (intptr_t)p3, (intptr_t)p4,  \
+                                    (intptr_t)p5, (intptr_t)p6, (intptr_t)p7,  \
+                                    (intptr_t)NULL, (intptr_t)p8)
+
 
 // The simulator has its own stack. Thus it has a different stack limit from
 // the C-based native code.  The JS-based limit normally points near the end of
 // the simulator stack.  When the C-based limit is exhausted we reflect that by
 // lowering the JS-based limit as well, to make stack checks trigger.
 class SimulatorStack : public v8::internal::AllStatic {
  public:
   static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate,
                                             uintptr_t c_limit) {
     return Simulator::current(isolate)->StackLimit(c_limit);
   }
 
   static inline uintptr_t RegisterCTryCatch(v8::internal::Isolate* isolate,
                                             uintptr_t try_catch_address) {
     Simulator* sim = Simulator::current(isolate);
     return sim->PushAddress(try_catch_address);
   }
 
   static inline void UnregisterCTryCatch(v8::internal::Isolate* isolate) {
     Simulator::current(isolate)->PopAddress();
   }
 };
 }  // namespace internal
 }  // namespace v8
 
 #endif  // !defined(USE_SIMULATOR)
 #endif  // V8_PPC_SIMULATOR_PPC_H_