Reorder switch clauses using newly-introduced execution counters in

src/x64/lithium-x64.cc

 // Copyright 2012 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 693 matching lines @@
 LInstruction* LChunkBuilder::DoDummyUse(HDummyUse* instr) {
   return DefineAsRegister(new(zone()) LDummyUse(UseAny(instr->value())));
 }
 
 
 LInstruction* LChunkBuilder::DoSoftDeoptimize(HSoftDeoptimize* instr) {
   return AssignEnvironment(new(zone()) LDeoptimize);
 }
 
 
+LInstruction* LChunkBuilder::DoDeoptCounter(HDeoptCounter* instr) {
+  return AssignEnvironment(new(zone()) LDeoptCounter(instr->id(),
+                                                     instr->initial_value(),
+                                                     instr->max_value()));
+}
+
+
+LInstruction* LChunkBuilder::DoDeoptCounterAdd(HDeoptCounterAdd* instr) {
+  LOperand* temp = TempRegister();
+  LOperand* temp2 = TempRegister();
+  return AssignEnvironment(new(zone()) LDeoptCounterAdd(instr->counter()->id(),
+                                                        instr->delta(),
+                                                        temp,
+                                                        temp2));
+}
+
+
 LInstruction* LChunkBuilder::DoDeoptimize(HDeoptimize* instr) {
   return AssignEnvironment(new(zone()) LDeoptimize);
 }
 
 
 LInstruction* LChunkBuilder::DoShift(Token::Value op,
                                      HBitwiseBinaryOperation* instr) {
   if (instr->representation().IsSmiOrTagged()) {
     ASSERT(instr->left()->representation().IsSmiOrTagged());
     ASSERT(instr->right()->representation().IsSmiOrTagged());
@@ skipping 1844 matching lines @@
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseTempRegister(instr->index());
   return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64