Revert "Unification: introduce ExternalReference::pending_exception_address()."

src/arm/code-stubs-arm.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3114 matching lines @@
   if (type == OUT_OF_MEMORY) {
     // Set external caught exception to false.
     ExternalReference external_caught(Top::k_external_caught_exception_address);
     __ mov(r0, Operand(false, RelocInfo::NONE));
     __ mov(r2, Operand(external_caught));
     __ str(r0, MemOperand(r2));
 
     // Set pending exception and r0 to out of memory exception.
     Failure* out_of_memory = Failure::OutOfMemoryException();
     __ mov(r0, Operand(reinterpret_cast<int32_t>(out_of_memory)));
-    __ mov(r2, Operand(ExternalReference::pending_exception_address()));
+    __ mov(r2, Operand(ExternalReference(Top::k_pending_exception_address)));
     __ str(r0, MemOperand(r2));
   }
 
   // Stack layout at this point. See also StackHandlerConstants.
   // sp ->   state (ENTRY)
   //         fp
   //         lr
 
   // Discard handler state (r2 is not used) and restore frame pointer.
   STATIC_ASSERT(StackHandlerConstants::kFPOffset == 2 * kPointerSize);
@@ skipping 109 matching lines @@
   __ b(eq, &retry);
 
   // Special handling of out of memory exceptions.
   Failure* out_of_memory = Failure::OutOfMemoryException();
   __ cmp(r0, Operand(reinterpret_cast<int32_t>(out_of_memory)));
   __ b(eq, throw_out_of_memory_exception);
 
   // Retrieve the pending exception and clear the variable.
   __ mov(ip, Operand(ExternalReference::the_hole_value_location()));
   __ ldr(r3, MemOperand(ip));
-  __ mov(ip, Operand(ExternalReference::pending_exception_address()));
+  __ mov(ip, Operand(ExternalReference(Top::k_pending_exception_address)));
   __ ldr(r0, MemOperand(ip));
   __ str(r3, MemOperand(ip));
 
   // Special handling of termination exceptions which are uncatchable
   // by javascript code.
   __ cmp(r0, Operand(Factory::termination_exception()));
   __ b(eq, throw_termination_exception);
 
   // Handle normal exception.
   __ jmp(throw_normal_exception);
@@ skipping 112 matching lines @@
   __ str(fp, MemOperand(r5), eq);
 #endif
 
   // Call a faked try-block that does the invoke.
   __ bl(&invoke);
 
   // Caught exception: Store result (exception) in the pending
   // exception field in the JSEnv and return a failure sentinel.
   // Coming in here the fp will be invalid because the PushTryHandler below
   // sets it to 0 to signal the existence of the JSEntry frame.
-  __ mov(ip, Operand(ExternalReference::pending_exception_address()));
+  __ mov(ip, Operand(ExternalReference(Top::k_pending_exception_address)));
   __ str(r0, MemOperand(ip));
   __ mov(r0, Operand(reinterpret_cast<int32_t>(Failure::Exception())));
   __ b(&exit);
 
   // Invoke: Link this frame into the handler chain.
   __ bind(&invoke);
   // Must preserve r0-r4, r5-r7 are available.
   __ PushTryHandler(IN_JS_ENTRY, JS_ENTRY_HANDLER);
   // If an exception not caught by another handler occurs, this handler
   // returns control to the code after the bl(&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(ip, Operand(ExternalReference::the_hole_value_location()));
   __ ldr(r5, MemOperand(ip));
-  __ mov(ip, Operand(ExternalReference::pending_exception_address()));
+  __ mov(ip, Operand(ExternalReference(Top::k_pending_exception_address)));
   __ str(r5, 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
   // r0: code entry
   // r1: function
   // r2: receiver
@@ skipping 646 matching lines @@
   __ b(eq, &failure);
   __ cmp(r0, Operand(NativeRegExpMacroAssembler::EXCEPTION));
   // If not exception it can only be retry. Handle that in the runtime system.
   __ b(ne, &runtime);
   // Result must now be exception. If there is no pending exception already a
   // stack overflow (on the backtrack stack) was detected in RegExp code but
   // haven't created the exception yet. Handle that in the runtime system.
   // TODO(592): Rerunning the RegExp to get the stack overflow exception.
   __ mov(r0, Operand(ExternalReference::the_hole_value_location()));
   __ ldr(r0, MemOperand(r0, 0));
-  __ mov(r1, Operand(ExternalReference::pending_exception_address()));
+  __ mov(r1, Operand(ExternalReference(Top::k_pending_exception_address)));
   __ ldr(r1, MemOperand(r1, 0));
   __ cmp(r0, r1);
   __ b(eq, &runtime);
   __ bind(&failure);
   // For failure and exception return null.
   __ mov(r0, Operand(Factory::null_value()));
   __ add(sp, sp, Operand(4 * kPointerSize));
   __ Ret();
 
   // Process the result from the native regexp code.
@@ skipping 1603 matching lines @@
   __ pop(r1);
   __ Jump(r2);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM