Remove materialized objects on stack unwind.

src/ppc/code-stubs-ppc.cc

 // 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1113 matching lines @@
       Isolate::kPendingHandlerCodeAddress, isolate());
   ExternalReference pending_handler_offset_address(
       Isolate::kPendingHandlerOffsetAddress, isolate());
   ExternalReference pending_handler_fp_address(
       Isolate::kPendingHandlerFPAddress, isolate());
   ExternalReference pending_handler_sp_address(
       Isolate::kPendingHandlerSPAddress, isolate());
 
   // Ask the runtime for help to determine the handler. This will set r3 to
   // contain the current pending exception, don't clobber it.
-  ExternalReference find_handler(Runtime::kFindExceptionHandler, isolate());
+  ExternalReference find_handler(Runtime::kUnwindFindExceptionHandler,
+                                 isolate());
   {
     FrameScope scope(masm, StackFrame::MANUAL);
     __ PrepareCallCFunction(3, 0, r3);
     __ li(r3, Operand::Zero());
     __ li(r4, Operand::Zero());
     __ mov(r5, Operand(ExternalReference::isolate_address(isolate())));
     __ CallCFunction(find_handler, 3);
   }
 
   // Retrieve the handler context, SP and FP.
@@ skipping 4434 matching lines @@
                            kStackUnwindSpace, NULL,
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_PPC