PPC/s390: Clear exceptions in Invoke instead of JSEntryStub

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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1151 matching lines @@
 
   // Invoke: Link this frame into the handler chain.
   __ bind(&invoke);
   // Must preserve r3-r7.
   __ PushStackHandler();
   // If an exception not caught by another handler occurs, this handler
   // returns control to the code after the b(&invoke) above, which
   // restores all kCalleeSaved registers (including cp and fp) to their
   // saved values before returning a failure to C.
 
-  // Clear any pending exceptions.
-  __ mov(r8, Operand(isolate()->factory()->the_hole_value()));
-  __ mov(ip, Operand(ExternalReference(Isolate::kPendingExceptionAddress,
-                                       isolate())));
-  __ StoreP(r8, MemOperand(ip));
-
   // Invoke the function by calling through JS entry trampoline builtin.
   // Notice that we cannot store a reference to the trampoline code directly in
   // this stub, because runtime stubs are not traversed when doing GC.
 
   // Expected registers by Builtins::JSEntryTrampoline
   // r3: code entry
   // r4: function
   // r5: receiver
   // r6: argc
   // r7: argv
@@ skipping 4290 matching lines @@
       fp, (PropertyCallbackArguments::kReturnValueOffset + 3) * kPointerSize);
   CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC