// Copyright 2015 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/compiler/common-operator.h"
#include "src/compiler/node-properties.h"
#include "test/unittests/test-utils.h"
#include "testing/gmock/include/gmock/gmock.h"
using testing::AnyOf;
using testing::ElementsAre;
using testing::IsNull;
namespace v8 {
namespace internal {
namespace compiler {
class NodePropertiesTest : public TestWithZone {
public:
Node* NewMockNode(const Operator* op) {
return Node::New(zone(), 0, op, 0, nullptr, false);
}
Node* NewMockNode(const Operator* op, Node* n1) {
Node* nodes[] = {n1};
return Node::New(zone(), 0, op, arraysize(nodes), nodes, false);
}
Node* NewMockNode(const Operator* op, Node* n1, Node* n2) {
Node* nodes[] = {n1, n2};
return Node::New(zone(), 0, op, arraysize(nodes), nodes, false);
}
};
namespace {
const Operator kMockOperator(IrOpcode::kDead, Operator::kNoProperties,
"MockOperator", 0, 0, 0, 1, 1, 2);
const Operator kMockCallOperator(IrOpcode::kCall, Operator::kNoProperties,
"MockCallOperator", 0, 0, 0, 0, 0, 2);
const IfExceptionHint kNoHint = IfExceptionHint::kLocallyCaught;
} // namespace
TEST_F(NodePropertiesTest, ReplaceUses) {
CommonOperatorBuilder common(zone());
Node* node = NewMockNode(&kMockOperator);
Node* effect = NewMockNode(&kMockOperator);
Node* use_value = NewMockNode(common.Return(), node);
Node* use_effect = NewMockNode(common.EffectPhi(1), node);
Node* use_success = NewMockNode(common.IfSuccess(), node);
Node* use_exception = NewMockNode(common.IfException(kNoHint), effect, node);
Node* r_value = NewMockNode(&kMockOperator);
Node* r_effect = NewMockNode(&kMockOperator);
Node* r_success = NewMockNode(&kMockOperator);
Node* r_exception = NewMockNode(&kMockOperator);
NodeProperties::ReplaceUses(node, r_value, r_effect, r_success, r_exception);
EXPECT_EQ(r_value, use_value->InputAt(0));
EXPECT_EQ(r_effect, use_effect->InputAt(0));
EXPECT_EQ(r_success, use_success->InputAt(0));
EXPECT_EQ(r_exception, use_exception->InputAt(1));
EXPECT_EQ(0, node->UseCount());
EXPECT_EQ(1, r_value->UseCount());
EXPECT_EQ(1, r_effect->UseCount());
EXPECT_EQ(1, r_success->UseCount());
EXPECT_EQ(1, r_exception->UseCount());
EXPECT_THAT(r_value->uses(), ElementsAre(use_value));
EXPECT_THAT(r_effect->uses(), ElementsAre(use_effect));
EXPECT_THAT(r_success->uses(), ElementsAre(use_success));
EXPECT_THAT(r_exception->uses(), ElementsAre(use_exception));
}
TEST_F(NodePropertiesTest, FindProjection) {
CommonOperatorBuilder common(zone());
Node* start = NewMockNode(common.Start(1));
Node* proj0 = NewMockNode(common.Projection(0), start);
Node* proj1 = NewMockNode(common.Projection(1), start);
EXPECT_EQ(proj0, NodeProperties::FindProjection(start, 0));
EXPECT_EQ(proj1, NodeProperties::FindProjection(start, 1));
EXPECT_THAT(NodeProperties::FindProjection(start, 2), IsNull());
EXPECT_THAT(NodeProperties::FindProjection(start, 1234567890), IsNull());
}
TEST_F(NodePropertiesTest, CollectControlProjections_Branch) {
Node* result[2];
CommonOperatorBuilder common(zone());
Node* branch = NewMockNode(common.Branch());
Node* if_false = NewMockNode(common.IfFalse(), branch);
Node* if_true = NewMockNode(common.IfTrue(), branch);
NodeProperties::CollectControlProjections(branch, result, arraysize(result));
EXPECT_EQ(if_true, result[0]);
EXPECT_EQ(if_false, result[1]);
}
TEST_F(NodePropertiesTest, CollectControlProjections_Call) {
Node* result[2];
CommonOperatorBuilder common(zone());
Node* call = NewMockNode(&kMockCallOperator);
Node* if_ex = NewMockNode(common.IfException(kNoHint), call, call);
Node* if_ok = NewMockNode(common.IfSuccess(), call);
NodeProperties::CollectControlProjections(call, result, arraysize(result));
EXPECT_EQ(if_ok, result[0]);
EXPECT_EQ(if_ex, result[1]);
}
TEST_F(NodePropertiesTest, CollectControlProjections_Switch) {
Node* result[3];
CommonOperatorBuilder common(zone());
Node* sw = NewMockNode(common.Switch(3));
Node* if_default = NewMockNode(common.IfDefault(), sw);
Node* if_value1 = NewMockNode(common.IfValue(1), sw);
Node* if_value2 = NewMockNode(common.IfValue(2), sw);
NodeProperties::CollectControlProjections(sw, result, arraysize(result));
EXPECT_THAT(result[0], AnyOf(if_value1, if_value2));
EXPECT_THAT(result[1], AnyOf(if_value1, if_value2));
EXPECT_EQ(if_default, result[2]);
}
} // namespace compiler
} // namespace internal
} // namespace v8