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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "test/cctest/compiler/graph-builder-tester.h"
#include "src/compiler/linkage.h"
#include "src/compiler/pipeline.h"
namespace v8 {
namespace internal {
namespace compiler {
MachineCallHelper::MachineCallHelper(Zone* zone, MachineSignature* machine_sig)
: CallHelper(zone->isolate(), machine_sig),
parameters_(NULL),
graph_(NULL) {}
void MachineCallHelper::InitParameters(GraphBuilder* builder,
CommonOperatorBuilder* common) {
DCHECK_EQ(NULL, parameters_);
graph_ = builder->graph();
int param_count = static_cast<int>(parameter_count());
if (param_count == 0) return;
parameters_ = graph_->zone()->NewArray<Node*>(param_count);
for (int i = 0; i < param_count; ++i) {
parameters_[i] = builder->NewNode(common->Parameter(i), graph_->start());
}
}
byte* MachineCallHelper::Generate() {
DCHECK(parameter_count() == 0 || parameters_ != NULL);
if (!Pipeline::SupportedBackend()) return NULL;
if (code_.is_null()) {
Zone* zone = graph_->zone();
CompilationInfo info(zone->isolate(), zone);
Linkage linkage(&info,
Linkage::GetSimplifiedCDescriptor(zone, machine_sig_));
Pipeline pipeline(&info);
code_ = pipeline.GenerateCodeForMachineGraph(&linkage, graph_);
}
return code_.ToHandleChecked()->entry();
}
Node* MachineCallHelper::Parameter(size_t index) {
DCHECK_NE(NULL, parameters_);
DCHECK(index < parameter_count());
return parameters_[index];
}
} // namespace compiler
} // namespace internal
} // namespace v8
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