A64: Implement LChunkBuilder::DoForceRepresentation

src/a64/lithium-a64.cc

 // Copyright 2013 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 835 matching lines @@
   ASSERT(right->representation().IsSmiOrTagged());
 
   LOperand* left_operand = UseFixed(left, x1);
   LOperand* right_operand = UseFixed(right, x0);
   LArithmeticT* result =
       new(zone()) LArithmeticT(op, left_operand, right_operand);
   return MarkAsCall(DefineFixed(result, x0), instr);
 }
 
 
-#define UNIMPLEMENTED_INSTRUCTION()                                     \
-  do {                                                                  \
-    info_->set_bailout_reason(kUnimplementedHydrogenInstruction);       \
-    status_ = ABORTED;                                                  \
-    return NULL;                                                        \
-  } while (0)
-
-
 LInstruction* LChunkBuilder::DoBoundsCheckBaseIndexInformation(
     HBoundsCheckBaseIndexInformation* instr) {
   UNREACHABLE();
   return NULL;
 }
 
 
 LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
   // The control instruction marking the end of a block that completed abruptly
   // (e.g., threw an exception). There is nothing specific to do.
@@ skipping 610 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoEnvironmentMarker(HEnvironmentMarker* instr) {
   UNREACHABLE();
   return NULL;
 }
 
 
 LInstruction* LChunkBuilder::DoForceRepresentation(
     HForceRepresentation* instr) {
-  UNIMPLEMENTED_INSTRUCTION();
+  // All HForceRepresentation instructions should be eliminated in the
+  // representation change phase of Hydrogen.
+  UNREACHABLE();
+  return NULL;
 }
 
 
 LInstruction* LChunkBuilder::DoFunctionLiteral(HFunctionLiteral* instr) {
   return MarkAsCall(DefineFixed(new(zone()) LFunctionLiteral, x0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoGetCachedArrayIndex(
     HGetCachedArrayIndex* instr) {
@@ skipping 1036 matching lines @@
 LInstruction* LChunkBuilder::DoWrapReceiver(HWrapReceiver* instr) {
   LOperand* receiver = UseRegister(instr->receiver());
   LOperand* function = UseRegisterAtStart(instr->function());
   LOperand* temp = TempRegister();
   LWrapReceiver* result = new(zone()) LWrapReceiver(receiver, function, temp);
   return AssignEnvironment(DefineAsRegister(result));
 }
 
 
 } }  // namespace v8::internal