a4743baec1
This completely removes translation of exception handler predictions
from the graph IR. We now rely on the runtime using deoptimization
infomation via {FrameSummary} for predictions in optimized code.
R=bmeurer@chromium.org
Review-Url: https://codereview.chromium.org/2207533002
Cr-Commit-Position: refs/heads/master@{#38250}
124 lines
4.5 KiB
C++
124 lines
4.5 KiB
C++
// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/compiler/common-operator.h"
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#include "src/compiler/node-properties.h"
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#include "test/unittests/test-utils.h"
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#include "testing/gmock/include/gmock/gmock.h"
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using testing::AnyOf;
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using testing::ElementsAre;
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using testing::IsNull;
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namespace v8 {
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namespace internal {
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namespace compiler {
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class NodePropertiesTest : public TestWithZone {
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public:
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Node* NewMockNode(const Operator* op) {
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return Node::New(zone(), 0, op, 0, nullptr, false);
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}
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Node* NewMockNode(const Operator* op, Node* n1) {
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Node* nodes[] = {n1};
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return Node::New(zone(), 0, op, arraysize(nodes), nodes, false);
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}
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Node* NewMockNode(const Operator* op, Node* n1, Node* n2) {
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Node* nodes[] = {n1, n2};
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return Node::New(zone(), 0, op, arraysize(nodes), nodes, false);
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}
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};
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namespace {
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const Operator kMockOperator(IrOpcode::kDead, Operator::kNoProperties,
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"MockOperator", 0, 0, 0, 1, 1, 2);
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const Operator kMockCallOperator(IrOpcode::kCall, Operator::kNoProperties,
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"MockCallOperator", 0, 0, 0, 0, 0, 2);
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} // namespace
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TEST_F(NodePropertiesTest, ReplaceUses) {
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CommonOperatorBuilder common(zone());
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Node* node = NewMockNode(&kMockOperator);
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Node* effect = NewMockNode(&kMockOperator);
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Node* use_value = NewMockNode(common.Return(), node);
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Node* use_effect = NewMockNode(common.EffectPhi(1), node);
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Node* use_success = NewMockNode(common.IfSuccess(), node);
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Node* use_exception = NewMockNode(common.IfException(), effect, node);
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Node* r_value = NewMockNode(&kMockOperator);
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Node* r_effect = NewMockNode(&kMockOperator);
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Node* r_success = NewMockNode(&kMockOperator);
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Node* r_exception = NewMockNode(&kMockOperator);
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NodeProperties::ReplaceUses(node, r_value, r_effect, r_success, r_exception);
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EXPECT_EQ(r_value, use_value->InputAt(0));
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EXPECT_EQ(r_effect, use_effect->InputAt(0));
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EXPECT_EQ(r_success, use_success->InputAt(0));
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EXPECT_EQ(r_exception, use_exception->InputAt(1));
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EXPECT_EQ(0, node->UseCount());
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EXPECT_EQ(1, r_value->UseCount());
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EXPECT_EQ(1, r_effect->UseCount());
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EXPECT_EQ(1, r_success->UseCount());
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EXPECT_EQ(1, r_exception->UseCount());
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EXPECT_THAT(r_value->uses(), ElementsAre(use_value));
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EXPECT_THAT(r_effect->uses(), ElementsAre(use_effect));
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EXPECT_THAT(r_success->uses(), ElementsAre(use_success));
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EXPECT_THAT(r_exception->uses(), ElementsAre(use_exception));
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}
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TEST_F(NodePropertiesTest, FindProjection) {
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CommonOperatorBuilder common(zone());
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Node* start = NewMockNode(common.Start(1));
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Node* proj0 = NewMockNode(common.Projection(0), start);
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Node* proj1 = NewMockNode(common.Projection(1), start);
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EXPECT_EQ(proj0, NodeProperties::FindProjection(start, 0));
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EXPECT_EQ(proj1, NodeProperties::FindProjection(start, 1));
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EXPECT_THAT(NodeProperties::FindProjection(start, 2), IsNull());
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EXPECT_THAT(NodeProperties::FindProjection(start, 1234567890), IsNull());
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}
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TEST_F(NodePropertiesTest, CollectControlProjections_Branch) {
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Node* result[2];
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CommonOperatorBuilder common(zone());
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Node* branch = NewMockNode(common.Branch());
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Node* if_false = NewMockNode(common.IfFalse(), branch);
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Node* if_true = NewMockNode(common.IfTrue(), branch);
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NodeProperties::CollectControlProjections(branch, result, arraysize(result));
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EXPECT_EQ(if_true, result[0]);
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EXPECT_EQ(if_false, result[1]);
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}
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TEST_F(NodePropertiesTest, CollectControlProjections_Call) {
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Node* result[2];
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CommonOperatorBuilder common(zone());
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Node* call = NewMockNode(&kMockCallOperator);
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Node* if_ex = NewMockNode(common.IfException(), call, call);
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Node* if_ok = NewMockNode(common.IfSuccess(), call);
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NodeProperties::CollectControlProjections(call, result, arraysize(result));
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EXPECT_EQ(if_ok, result[0]);
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EXPECT_EQ(if_ex, result[1]);
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}
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TEST_F(NodePropertiesTest, CollectControlProjections_Switch) {
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Node* result[3];
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CommonOperatorBuilder common(zone());
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Node* sw = NewMockNode(common.Switch(3));
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Node* if_default = NewMockNode(common.IfDefault(), sw);
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Node* if_value1 = NewMockNode(common.IfValue(1), sw);
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Node* if_value2 = NewMockNode(common.IfValue(2), sw);
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NodeProperties::CollectControlProjections(sw, result, arraysize(result));
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EXPECT_THAT(result[0], AnyOf(if_value1, if_value2));
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EXPECT_THAT(result[1], AnyOf(if_value1, if_value2));
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EXPECT_EQ(if_default, result[2]);
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}
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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