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9b4bf7de6c
PR-URL: https://github.com/nodejs/node/pull/23423 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Myles Borins <myles.borins@gmail.com>
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
// Copyright 2016 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/checkpoint-elimination.h"
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#include "src/compiler/common-operator.h"
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#include "src/compiler/operator.h"
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#include "test/unittests/compiler/graph-reducer-unittest.h"
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#include "test/unittests/compiler/graph-unittest.h"
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#include "test/unittests/compiler/node-test-utils.h"
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using testing::StrictMock;
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namespace v8 {
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namespace internal {
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namespace compiler {
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class CheckpointEliminationTest : public GraphTest {
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public:
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CheckpointEliminationTest() : GraphTest() {}
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~CheckpointEliminationTest() override = default;
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protected:
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Reduction Reduce(AdvancedReducer::Editor* editor, Node* node) {
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CheckpointElimination reducer(editor);
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return reducer.Reduce(node);
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}
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Reduction Reduce(Node* node) {
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StrictMock<MockAdvancedReducerEditor> editor;
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return Reduce(&editor, node);
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}
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};
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namespace {
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const Operator kOpNoWrite(0, Operator::kNoWrite, "OpNoWrite", 0, 1, 0, 0, 1, 0);
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} // namespace
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// -----------------------------------------------------------------------------
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// Checkpoint
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TEST_F(CheckpointEliminationTest, CheckpointChain) {
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Node* const control = graph()->start();
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Node* frame_state = EmptyFrameState();
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Node* checkpoint1 = graph()->NewNode(common()->Checkpoint(), frame_state,
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graph()->start(), control);
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Node* effect_link = graph()->NewNode(&kOpNoWrite, checkpoint1);
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Node* checkpoint2 = graph()->NewNode(common()->Checkpoint(), frame_state,
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effect_link, control);
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Reduction r = Reduce(checkpoint2);
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ASSERT_TRUE(r.Changed());
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EXPECT_EQ(effect_link, r.replacement());
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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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