Support %_IsConstructCall in Crankshaft pipeline.

src/x64/lithium-x64.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 1064 matching lines @@
     } else if (v->IsInstanceOf()) {
       HInstanceOf* instance_of = HInstanceOf::cast(v);
       LInstanceOfAndBranch* result =
           new LInstanceOfAndBranch(
               UseFixed(instance_of->left(), InstanceofStub::left()),
               UseFixed(instance_of->right(), InstanceofStub::right()));
       return MarkAsCall(result, instr);
     } else if (v->IsTypeofIs()) {
       HTypeofIs* typeof_is = HTypeofIs::cast(v);
       return new LTypeofIsAndBranch(UseTempRegister(typeof_is->value()));
+    } else if (v->IsIsConstructCall()) {
+      return new LIsConstructCallAndBranch(TempRegister());
     } else {
       if (v->IsConstant()) {
         if (HConstant::cast(v)->handle()->IsTrue()) {
           return new LGoto(instr->FirstSuccessor()->block_id());
         } else if (HConstant::cast(v)->handle()->IsFalse()) {
           return new LGoto(instr->SecondSuccessor()->block_id());
         }
       }
       Abort("Undefined compare before branch");
       return NULL;
@@ skipping 661 matching lines @@
   Abort("Unimplemented: %s", "DoTypeof");
   return NULL;
 }
 
 
 LInstruction* LChunkBuilder::DoTypeofIs(HTypeofIs* instr) {
   Abort("Unimplemented: %s", "DoTypeofIs");
   return NULL;
 }
 
+
+LInstruction* LChunkBuilder::DoIsConstructCall(HIsConstructCall* instr) {
+  return DefineAsRegister(new LIsConstructCall);
+}
+
+
 LInstruction* LChunkBuilder::DoSimulate(HSimulate* instr) {
   HEnvironment* env = current_block_->last_environment();
   ASSERT(env != NULL);
 
   env->set_ast_id(instr->ast_id());
 
   env->Drop(instr->pop_count());
   for (int i = 0; i < instr->values()->length(); ++i) {
     HValue* value = instr->values()->at(i);
     if (instr->HasAssignedIndexAt(i)) {
@@ skipping 39 matching lines @@
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
   HEnvironment* outer = current_block_->last_environment()->outer();
   current_block_->UpdateEnvironment(outer);
   return NULL;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64