1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "src/v8.h"
6
7 #include "src/compiler/common-operator.h"
8 #include "src/compiler/generic-node-inl.h"
9 #include "src/compiler/graph.h"
10 #include "src/compiler/machine-operator.h"
11 #include "src/compiler/node.h"
12 #include "src/compiler/operator.h"
13 #include "src/compiler/schedule.h"
14 #include "test/cctest/cctest.h"
15
16 using namespace v8::internal;
17 using namespace v8::internal::compiler;
18
19 static SimpleOperator dummy_operator(IrOpcode::kParameter, Operator::kNoWrite,
20 0, 0, "dummy");
21
TEST(TestScheduleAllocation)22 TEST(TestScheduleAllocation) {
23 HandleAndZoneScope scope;
24 Schedule schedule(scope.main_zone());
25
26 CHECK_NE(NULL, schedule.start());
27 CHECK_EQ(schedule.start(), *(schedule.all_blocks().begin()));
28 }
29
30
TEST(TestScheduleAddNode)31 TEST(TestScheduleAddNode) {
32 HandleAndZoneScope scope;
33 Graph graph(scope.main_zone());
34 Node* n0 = graph.NewNode(&dummy_operator);
35 Node* n1 = graph.NewNode(&dummy_operator);
36
37 Schedule schedule(scope.main_zone());
38
39 BasicBlock* entry = schedule.start();
40 schedule.AddNode(entry, n0);
41 schedule.AddNode(entry, n1);
42
43 CHECK_EQ(entry, schedule.block(n0));
44 CHECK_EQ(entry, schedule.block(n1));
45 CHECK(schedule.SameBasicBlock(n0, n1));
46
47 Node* n2 = graph.NewNode(&dummy_operator);
48 CHECK_EQ(NULL, schedule.block(n2));
49 }
50
51
TEST(TestScheduleAddGoto)52 TEST(TestScheduleAddGoto) {
53 HandleAndZoneScope scope;
54
55 Schedule schedule(scope.main_zone());
56 BasicBlock* entry = schedule.start();
57 BasicBlock* next = schedule.NewBasicBlock();
58
59 schedule.AddGoto(entry, next);
60
61 CHECK_EQ(0, entry->PredecessorCount());
62 CHECK_EQ(1, entry->SuccessorCount());
63 CHECK_EQ(next, entry->SuccessorAt(0));
64
65 CHECK_EQ(1, next->PredecessorCount());
66 CHECK_EQ(entry, next->PredecessorAt(0));
67 CHECK_EQ(0, next->SuccessorCount());
68 }
69
70
TEST(TestScheduleAddBranch)71 TEST(TestScheduleAddBranch) {
72 HandleAndZoneScope scope;
73 Schedule schedule(scope.main_zone());
74
75 BasicBlock* entry = schedule.start();
76 BasicBlock* tblock = schedule.NewBasicBlock();
77 BasicBlock* fblock = schedule.NewBasicBlock();
78
79 Graph graph(scope.main_zone());
80 CommonOperatorBuilder common(scope.main_zone());
81 Node* n0 = graph.NewNode(&dummy_operator);
82 Node* b = graph.NewNode(common.Branch(), n0);
83
84 schedule.AddBranch(entry, b, tblock, fblock);
85
86 CHECK_EQ(0, entry->PredecessorCount());
87 CHECK_EQ(2, entry->SuccessorCount());
88 CHECK_EQ(tblock, entry->SuccessorAt(0));
89 CHECK_EQ(fblock, entry->SuccessorAt(1));
90
91 CHECK_EQ(1, tblock->PredecessorCount());
92 CHECK_EQ(entry, tblock->PredecessorAt(0));
93 CHECK_EQ(0, tblock->SuccessorCount());
94
95 CHECK_EQ(1, fblock->PredecessorCount());
96 CHECK_EQ(entry, fblock->PredecessorAt(0));
97 CHECK_EQ(0, fblock->SuccessorCount());
98 }
99
100
TEST(TestScheduleAddReturn)101 TEST(TestScheduleAddReturn) {
102 HandleAndZoneScope scope;
103 Schedule schedule(scope.main_zone());
104 Graph graph(scope.main_zone());
105 Node* n0 = graph.NewNode(&dummy_operator);
106 BasicBlock* entry = schedule.start();
107 schedule.AddReturn(entry, n0);
108
109 CHECK_EQ(0, entry->PredecessorCount());
110 CHECK_EQ(1, entry->SuccessorCount());
111 CHECK_EQ(schedule.end(), entry->SuccessorAt(0));
112 }
113
114
TEST(TestScheduleAddThrow)115 TEST(TestScheduleAddThrow) {
116 HandleAndZoneScope scope;
117 Schedule schedule(scope.main_zone());
118 Graph graph(scope.main_zone());
119 Node* n0 = graph.NewNode(&dummy_operator);
120 BasicBlock* entry = schedule.start();
121 schedule.AddThrow(entry, n0);
122
123 CHECK_EQ(0, entry->PredecessorCount());
124 CHECK_EQ(1, entry->SuccessorCount());
125 CHECK_EQ(schedule.end(), entry->SuccessorAt(0));
126 }
127
128
TEST(BuildMulNodeGraph)129 TEST(BuildMulNodeGraph) {
130 HandleAndZoneScope scope;
131 Schedule schedule(scope.main_zone());
132 Graph graph(scope.main_zone());
133 CommonOperatorBuilder common(scope.main_zone());
134 MachineOperatorBuilder machine;
135
136 Node* start = graph.NewNode(common.Start(0));
137 graph.SetStart(start);
138 Node* param0 = graph.NewNode(common.Parameter(0), graph.start());
139 Node* param1 = graph.NewNode(common.Parameter(1), graph.start());
140
141 Node* mul = graph.NewNode(machine.Int32Mul(), param0, param1);
142 Node* ret = graph.NewNode(common.Return(), mul, start);
143
144 USE(ret);
145 }
146