1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "test/cctest/compiler/graph-builder-tester.h" 6 7 #include "src/compiler/linkage.h" 8 #include "src/compiler/pipeline.h" 9 10 namespace v8 { 11 namespace internal { 12 namespace compiler { 13 14 MachineCallHelper::MachineCallHelper(Zone* zone, MachineSignature* machine_sig) 15 : CallHelper(zone->isolate(), machine_sig), 16 parameters_(NULL), 17 graph_(NULL) {} 18 19 20 void MachineCallHelper::InitParameters(GraphBuilder* builder, 21 CommonOperatorBuilder* common) { 22 DCHECK_EQ(NULL, parameters_); 23 graph_ = builder->graph(); 24 int param_count = static_cast<int>(parameter_count()); 25 if (param_count == 0) return; 26 parameters_ = graph_->zone()->NewArray<Node*>(param_count); 27 for (int i = 0; i < param_count; ++i) { 28 parameters_[i] = builder->NewNode(common->Parameter(i), graph_->start()); 29 } 30 } 31 32 33 byte* MachineCallHelper::Generate() { 34 DCHECK(parameter_count() == 0 || parameters_ != NULL); 35 if (!Pipeline::SupportedBackend()) return NULL; 36 if (code_.is_null()) { 37 Zone* zone = graph_->zone(); 38 CompilationInfo info(zone->isolate(), zone); 39 Linkage linkage(&info, 40 Linkage::GetSimplifiedCDescriptor(zone, machine_sig_)); 41 Pipeline pipeline(&info); 42 code_ = pipeline.GenerateCodeForMachineGraph(&linkage, graph_); 43 } 44 return code_.ToHandleChecked()->entry(); 45 } 46 47 48 Node* MachineCallHelper::Parameter(size_t index) { 49 DCHECK_NE(NULL, parameters_); 50 DCHECK(index < parameter_count()); 51 return parameters_[index]; 52 } 53 54 } // namespace compiler 55 } // namespace internal 56 } // namespace v8 57
