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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 "src/v8.h"
#include "test/cctest/cctest.h"
#include "src/compiler/common-operator.h"
#include "src/compiler/graph.h"
#include "src/compiler/graph-visualizer.h"
#include "src/compiler/js-operator.h"
#include "src/compiler/machine-operator.h"
#include "src/compiler/node.h"
#include "src/compiler/operator.h"
#include "src/compiler/schedule.h"
#include "src/compiler/scheduler.h"
#include "src/compiler/source-position.h"
#include "src/compiler/verifier.h"
using namespace v8::internal;
using namespace v8::internal::compiler;
static Operator dummy_operator1(IrOpcode::kParameter, Operator::kNoWrite,
"dummy", 1, 0, 0, 1, 0, 0);
static Operator dummy_operator6(IrOpcode::kParameter, Operator::kNoWrite,
"dummy", 6, 0, 0, 1, 0, 0);
TEST(NodeWithNullInputReachableFromEnd) {
HandleAndZoneScope scope;
Graph graph(scope.main_zone());
CommonOperatorBuilder common(scope.main_zone());
Node* start = graph.NewNode(common.Start(0));
graph.SetStart(start);
Node* k = graph.NewNode(common.Int32Constant(0));
Node* phi = graph.NewNode(common.Phi(kMachAnyTagged, 1), k, start);
phi->ReplaceInput(0, NULL);
graph.SetEnd(phi);
OFStream os(stdout);
os << AsDOT(graph);
SourcePositionTable table(&graph);
os << AsJSON(graph, &table);
}
TEST(NodeWithNullControlReachableFromEnd) {
HandleAndZoneScope scope;
Graph graph(scope.main_zone());
CommonOperatorBuilder common(scope.main_zone());
Node* start = graph.NewNode(common.Start(0));
graph.SetStart(start);
Node* k = graph.NewNode(common.Int32Constant(0));
Node* phi = graph.NewNode(common.Phi(kMachAnyTagged, 1), k, start);
phi->ReplaceInput(1, NULL);
graph.SetEnd(phi);
OFStream os(stdout);
os << AsDOT(graph);
SourcePositionTable table(&graph);
os << AsJSON(graph, &table);
}
TEST(NodeWithNullInputReachableFromStart) {
HandleAndZoneScope scope;
Graph graph(scope.main_zone());
CommonOperatorBuilder common(scope.main_zone());
Node* start = graph.NewNode(common.Start(0));
graph.SetStart(start);
Node* k = graph.NewNode(common.Int32Constant(0));
Node* phi = graph.NewNode(common.Phi(kMachAnyTagged, 1), k, start);
phi->ReplaceInput(0, NULL);
graph.SetEnd(start);
OFStream os(stdout);
os << AsDOT(graph);
SourcePositionTable table(&graph);
os << AsJSON(graph, &table);
}
TEST(NodeWithNullControlReachableFromStart) {
HandleAndZoneScope scope;
Graph graph(scope.main_zone());
CommonOperatorBuilder common(scope.main_zone());
Node* start = graph.NewNode(common.Start(0));
graph.SetStart(start);
Node* merge = graph.NewNode(common.Merge(2), start, start);
merge->ReplaceInput(1, NULL);
graph.SetEnd(merge);
OFStream os(stdout);
os << AsDOT(graph);
SourcePositionTable table(&graph);
os << AsJSON(graph, &table);
}
TEST(NodeNetworkOfDummiesReachableFromEnd) {
HandleAndZoneScope scope;
Graph graph(scope.main_zone());
CommonOperatorBuilder common(scope.main_zone());
Node* start = graph.NewNode(common.Start(0));
graph.SetStart(start);
Node* n2 = graph.NewNode(&dummy_operator1, graph.start());
Node* n3 = graph.NewNode(&dummy_operator1, graph.start());
Node* n4 = graph.NewNode(&dummy_operator1, n2);
Node* n5 = graph.NewNode(&dummy_operator1, n2);
Node* n6 = graph.NewNode(&dummy_operator1, n3);
Node* n7 = graph.NewNode(&dummy_operator1, n3);
Node* n8 = graph.NewNode(&dummy_operator1, n5);
Node* n9 = graph.NewNode(&dummy_operator1, n5);
Node* n10 = graph.NewNode(&dummy_operator1, n9);
Node* n11 = graph.NewNode(&dummy_operator1, n9);
Node* end_dependencies[6] = {n4, n8, n10, n11, n6, n7};
Node* end = graph.NewNode(&dummy_operator6, 6, end_dependencies);
graph.SetEnd(end);
OFStream os(stdout);
os << AsDOT(graph);
SourcePositionTable table(&graph);
os << AsJSON(graph, &table);
}
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