bb2a830deb
MachineType is now a class with two enum fields: - MachineRepresentation - MachineSemantic Both enums are usable on their own, and this change switches some places from using MachineType to use just MachineRepresentation. Most notably: - register allocator now uses just the representation. - Phi and Select nodes only refer to representations. Review URL: https://codereview.chromium.org/1513543003 Cr-Commit-Position: refs/heads/master@{#32738}
147 lines
4.3 KiB
C++
147 lines
4.3 KiB
C++
// Copyright 2014 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/diamond.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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#include "testing/gmock-support.h"
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using testing::AllOf;
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using testing::Capture;
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using testing::CaptureEq;
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namespace v8 {
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namespace internal {
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namespace compiler {
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class DiamondTest : public GraphTest {
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public:
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DiamondTest() : GraphTest(5) {}
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};
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TEST_F(DiamondTest, SimpleDiamond) {
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Node* p = Parameter(0);
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Diamond d(graph(), common(), p);
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EXPECT_THAT(d.branch, IsBranch(p, graph()->start()));
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EXPECT_THAT(d.if_true, IsIfTrue(d.branch));
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EXPECT_THAT(d.if_false, IsIfFalse(d.branch));
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EXPECT_THAT(d.merge, IsMerge(d.if_true, d.if_false));
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}
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TEST_F(DiamondTest, DiamondChainDiamond) {
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Node* p0 = Parameter(0);
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Node* p1 = Parameter(1);
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Diamond d0(graph(), common(), p0);
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Diamond d1(graph(), common(), p1);
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d1.Chain(d0);
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EXPECT_THAT(d1.branch, IsBranch(p1, d0.merge));
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EXPECT_THAT(d0.branch, IsBranch(p0, graph()->start()));
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}
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TEST_F(DiamondTest, DiamondChainNode) {
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Node* p1 = Parameter(1);
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Diamond d1(graph(), common(), p1);
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Node* other = graph()->NewNode(common()->Merge(0));
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d1.Chain(other);
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EXPECT_THAT(d1.branch, IsBranch(p1, other));
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}
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TEST_F(DiamondTest, DiamondChainN) {
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Node* params[5] = {Parameter(0), Parameter(1), Parameter(2), Parameter(3),
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Parameter(4)};
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Diamond d[5] = {Diamond(graph(), common(), params[0]),
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Diamond(graph(), common(), params[1]),
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Diamond(graph(), common(), params[2]),
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Diamond(graph(), common(), params[3]),
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Diamond(graph(), common(), params[4])};
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for (int i = 1; i < 5; i++) {
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d[i].Chain(d[i - 1]);
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EXPECT_THAT(d[i].branch, IsBranch(params[i], d[i - 1].merge));
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}
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}
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TEST_F(DiamondTest, DiamondNested_true) {
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Node* p0 = Parameter(0);
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Node* p1 = Parameter(1);
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Diamond d0(graph(), common(), p0);
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Diamond d1(graph(), common(), p1);
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d1.Nest(d0, true);
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EXPECT_THAT(d0.branch, IsBranch(p0, graph()->start()));
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EXPECT_THAT(d0.if_true, IsIfTrue(d0.branch));
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EXPECT_THAT(d0.if_false, IsIfFalse(d0.branch));
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EXPECT_THAT(d0.merge, IsMerge(d1.merge, d0.if_false));
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EXPECT_THAT(d1.branch, IsBranch(p1, d0.if_true));
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EXPECT_THAT(d1.if_true, IsIfTrue(d1.branch));
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EXPECT_THAT(d1.if_false, IsIfFalse(d1.branch));
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EXPECT_THAT(d1.merge, IsMerge(d1.if_true, d1.if_false));
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}
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TEST_F(DiamondTest, DiamondNested_false) {
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Node* p0 = Parameter(0);
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Node* p1 = Parameter(1);
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Diamond d0(graph(), common(), p0);
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Diamond d1(graph(), common(), p1);
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d1.Nest(d0, false);
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EXPECT_THAT(d0.branch, IsBranch(p0, graph()->start()));
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EXPECT_THAT(d0.if_true, IsIfTrue(d0.branch));
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EXPECT_THAT(d0.if_false, IsIfFalse(d0.branch));
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EXPECT_THAT(d0.merge, IsMerge(d0.if_true, d1.merge));
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EXPECT_THAT(d1.branch, IsBranch(p1, d0.if_false));
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EXPECT_THAT(d1.if_true, IsIfTrue(d1.branch));
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EXPECT_THAT(d1.if_false, IsIfFalse(d1.branch));
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EXPECT_THAT(d1.merge, IsMerge(d1.if_true, d1.if_false));
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}
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TEST_F(DiamondTest, DiamondPhis) {
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Node* p0 = Parameter(0);
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Node* p1 = Parameter(1);
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Node* p2 = Parameter(2);
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Diamond d(graph(), common(), p0);
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MachineRepresentation types[] = {MachineRepresentation::kTagged,
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MachineRepresentation::kWord32};
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for (size_t i = 0; i < arraysize(types); i++) {
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Node* phi = d.Phi(types[i], p1, p2);
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EXPECT_THAT(d.branch, IsBranch(p0, graph()->start()));
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EXPECT_THAT(d.if_true, IsIfTrue(d.branch));
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EXPECT_THAT(d.if_false, IsIfFalse(d.branch));
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EXPECT_THAT(d.merge, IsMerge(d.if_true, d.if_false));
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EXPECT_THAT(phi, IsPhi(types[i], p1, p2, d.merge));
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}
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}
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TEST_F(DiamondTest, BranchHint) {
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Diamond dn(graph(), common(), Parameter(0));
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CHECK(BranchHint::kNone == BranchHintOf(dn.branch->op()));
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Diamond dt(graph(), common(), Parameter(0), BranchHint::kTrue);
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CHECK(BranchHint::kTrue == BranchHintOf(dt.branch->op()));
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Diamond df(graph(), common(), Parameter(0), BranchHint::kFalse);
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CHECK(BranchHint::kFalse == BranchHintOf(df.branch->op()));
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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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