Crankshaft support for IN.

src/x64/lithium-codegen-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 3980 matching lines @@
   // reloc info for patching in deoptimization (since this is invoking a
   // builtin)
   SafepointGenerator safepoint_generator(this,
                                          pointers,
                                          env->deoptimization_index());
   __ Push(Smi::FromInt(strict_mode_flag()));
   __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION, &safepoint_generator);
 }
 
 
+void LCodeGen::DoIn(LIn* instr) {
+  LOperand* obj = instr->object();
+  LOperand* key = instr->key();
+  EmitPushTaggedOperand(key);
+  EmitPushTaggedOperand(obj);
+  ASSERT(instr->HasPointerMap() && instr->HasDeoptimizationEnvironment());
+  LPointerMap* pointers = instr->pointer_map();
+  LEnvironment* env = instr->deoptimization_environment();
+  RecordPosition(pointers->position());
+  RegisterEnvironmentForDeoptimization(env);
+  // Create safepoint generator that will also ensure enough space in the
+  // reloc info for patching in deoptimization (since this is invoking a
+  // builtin)
+  SafepointGenerator safepoint_generator(this,
+                                         pointers,
+                                         env->deoptimization_index());
+  __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, &safepoint_generator);
+}
+
+
 void LCodeGen::DoStackCheck(LStackCheck* instr) {
   // Perform stack overflow check.
   NearLabel done;
   __ CompareRoot(rsp, Heap::kStackLimitRootIndex);
   __ j(above_equal, &done);
 
   StackCheckStub stub;
   CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
   __ bind(&done);
 }
@@ skipping 13 matching lines @@
   RegisterEnvironmentForDeoptimization(environment);
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64