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v8/test/cctest/compiler/test-node-algorithm.cc
mstarzinger@chromium.org c63deb9b56 Make generic algorithm less generic. 
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/701473002

Cr-Commit-Position: refs/heads/master@{#25064}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25064 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-11-03 10:31:11 +00:00

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// Copyright 2013 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 <vector>
#include "src/v8.h"
#include "graph-tester.h"
#include "src/compiler/common-operator.h"
#include "src/compiler/generic-node.h"
#include "src/compiler/generic-node-inl.h"
#include "src/compiler/graph.h"
#include "src/compiler/graph-inl.h"
#include "src/compiler/graph-visualizer.h"
#include "src/compiler/operator.h"
using namespace v8::internal;
using namespace v8::internal::compiler;
static Operator dummy_operator(IrOpcode::kParameter, Operator::kNoWrite,
"dummy", 0, 0, 0, 1, 0, 0);
class PreNodeVisitor : public NullNodeVisitor {
public:
void Pre(Node* node) {
printf("NODE ID: %d\n", node->id());
nodes_.push_back(node);
}
std::vector<Node*> nodes_;
};
class PostNodeVisitor : public NullNodeVisitor {
public:
void Post(Node* node) {
printf("NODE ID: %d\n", node->id());
nodes_.push_back(node);
}
std::vector<Node*> nodes_;
};
TEST(TestUseNodeVisitEmpty) {
GraphWithStartNodeTester graph;
PreNodeVisitor node_visitor;
graph.VisitNodeUsesFromStart(&node_visitor);
CHECK_EQ(1, static_cast<int>(node_visitor.nodes_.size()));
}
TEST(TestUseNodePreOrderVisitSimple) {
GraphWithStartNodeTester graph;
Node* n2 = graph.NewNode(&dummy_operator, graph.start());
Node* n3 = graph.NewNode(&dummy_operator, n2);
Node* n4 = graph.NewNode(&dummy_operator, n2, n3);
Node* n5 = graph.NewNode(&dummy_operator, n4, n2);
graph.SetEnd(n5);
PreNodeVisitor node_visitor;
graph.VisitNodeUsesFromStart(&node_visitor);
CHECK_EQ(5, static_cast<int>(node_visitor.nodes_.size()));
CHECK(graph.start()->id() == node_visitor.nodes_[0]->id());
CHECK(n2->id() == node_visitor.nodes_[1]->id());
CHECK(n3->id() == node_visitor.nodes_[2]->id());
CHECK(n4->id() == node_visitor.nodes_[3]->id());
CHECK(n5->id() == node_visitor.nodes_[4]->id());
}
TEST(TestInputNodePreOrderVisitSimple) {
GraphWithStartNodeTester graph;
Node* n2 = graph.NewNode(&dummy_operator, graph.start());
Node* n3 = graph.NewNode(&dummy_operator, n2);
Node* n4 = graph.NewNode(&dummy_operator, n2, n3);
Node* n5 = graph.NewNode(&dummy_operator, n4, n2);
graph.SetEnd(n5);
PreNodeVisitor node_visitor;
graph.VisitNodeInputsFromEnd(&node_visitor);
CHECK_EQ(5, static_cast<int>(node_visitor.nodes_.size()));
CHECK(n5->id() == node_visitor.nodes_[0]->id());
CHECK(n4->id() == node_visitor.nodes_[1]->id());
CHECK(n2->id() == node_visitor.nodes_[2]->id());
CHECK(graph.start()->id() == node_visitor.nodes_[3]->id());
CHECK(n3->id() == node_visitor.nodes_[4]->id());
}
TEST(TestUseNodePostOrderVisitSimple) {
GraphWithStartNodeTester graph;
Node* n2 = graph.NewNode(&dummy_operator, graph.start());
Node* n3 = graph.NewNode(&dummy_operator, graph.start());
Node* n4 = graph.NewNode(&dummy_operator, n2);
Node* n5 = graph.NewNode(&dummy_operator, n2);
Node* n6 = graph.NewNode(&dummy_operator, n2);
Node* n7 = graph.NewNode(&dummy_operator, n3);
Node* end_dependencies[4] = {n4, n5, n6, n7};
Node* n8 = graph.NewNode(&dummy_operator, 4, end_dependencies);
graph.SetEnd(n8);
PostNodeVisitor node_visitor;
graph.VisitNodeUsesFromStart(&node_visitor);
CHECK_EQ(8, static_cast<int>(node_visitor.nodes_.size()));
CHECK(graph.end()->id() == node_visitor.nodes_[0]->id());
CHECK(n4->id() == node_visitor.nodes_[1]->id());
CHECK(n5->id() == node_visitor.nodes_[2]->id());
CHECK(n6->id() == node_visitor.nodes_[3]->id());
CHECK(n2->id() == node_visitor.nodes_[4]->id());
CHECK(n7->id() == node_visitor.nodes_[5]->id());
CHECK(n3->id() == node_visitor.nodes_[6]->id());
CHECK(graph.start()->id() == node_visitor.nodes_[7]->id());
}
TEST(TestUseNodePostOrderVisitLong) {
GraphWithStartNodeTester graph;
Node* n2 = graph.NewNode(&dummy_operator, graph.start());
Node* n3 = graph.NewNode(&dummy_operator, graph.start());
Node* n4 = graph.NewNode(&dummy_operator, n2);
Node* n5 = graph.NewNode(&dummy_operator, n2);
Node* n6 = graph.NewNode(&dummy_operator, n3);
Node* n7 = graph.NewNode(&dummy_operator, n3);
Node* n8 = graph.NewNode(&dummy_operator, n5);
Node* n9 = graph.NewNode(&dummy_operator, n5);
Node* n10 = graph.NewNode(&dummy_operator, n9);
Node* n11 = graph.NewNode(&dummy_operator, n9);
Node* end_dependencies[6] = {n4, n8, n10, n11, n6, n7};
Node* n12 = graph.NewNode(&dummy_operator, 6, end_dependencies);
graph.SetEnd(n12);
PostNodeVisitor node_visitor;
graph.VisitNodeUsesFromStart(&node_visitor);
CHECK_EQ(12, static_cast<int>(node_visitor.nodes_.size()));
CHECK(graph.end()->id() == node_visitor.nodes_[0]->id());
CHECK(n4->id() == node_visitor.nodes_[1]->id());
CHECK(n8->id() == node_visitor.nodes_[2]->id());
CHECK(n10->id() == node_visitor.nodes_[3]->id());
CHECK(n11->id() == node_visitor.nodes_[4]->id());
CHECK(n9->id() == node_visitor.nodes_[5]->id());
CHECK(n5->id() == node_visitor.nodes_[6]->id());
CHECK(n2->id() == node_visitor.nodes_[7]->id());
CHECK(n6->id() == node_visitor.nodes_[8]->id());
CHECK(n7->id() == node_visitor.nodes_[9]->id());
CHECK(n3->id() == node_visitor.nodes_[10]->id());
CHECK(graph.start()->id() == node_visitor.nodes_[11]->id());
}
TEST(TestUseNodePreOrderVisitCycle) {
GraphWithStartNodeTester graph;
Node* n0 = graph.start_node();
Node* n1 = graph.NewNode(&dummy_operator, n0);
Node* n2 = graph.NewNode(&dummy_operator, n1);
n0->AppendInput(graph.main_zone(), n2);
graph.SetStart(n0);
graph.SetEnd(n2);
PreNodeVisitor node_visitor;
graph.VisitNodeUsesFromStart(&node_visitor);
CHECK_EQ(3, static_cast<int>(node_visitor.nodes_.size()));
CHECK(n0->id() == node_visitor.nodes_[0]->id());
CHECK(n1->id() == node_visitor.nodes_[1]->id());
CHECK(n2->id() == node_visitor.nodes_[2]->id());
}
TEST(TestPrintNodeGraphToNodeGraphviz) {
GraphWithStartNodeTester graph;
Node* n2 = graph.NewNode(&dummy_operator, graph.start());
Node* n3 = graph.NewNode(&dummy_operator, graph.start());
Node* n4 = graph.NewNode(&dummy_operator, n2);
Node* n5 = graph.NewNode(&dummy_operator, n2);
Node* n6 = graph.NewNode(&dummy_operator, n3);
Node* n7 = graph.NewNode(&dummy_operator, n3);
Node* n8 = graph.NewNode(&dummy_operator, n5);
Node* n9 = graph.NewNode(&dummy_operator, n5);
Node* n10 = graph.NewNode(&dummy_operator, n9);
Node* n11 = graph.NewNode(&dummy_operator, n9);
Node* end_dependencies[6] = {n4, n8, n10, n11, n6, n7};
Node* n12 = graph.NewNode(&dummy_operator, 6, end_dependencies);
graph.SetEnd(n12);
OFStream os(stdout);
os << AsDOT(graph);
}
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