1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
// Copyright (c) 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <memory>
#include "gtest/gtest.h"
#include "source/opt/build_module.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace opt {
namespace {
using CommonDominatorsTest = ::testing::Test;
const std::string text = R"(
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %func "func"
%void = OpTypeVoid
%bool = OpTypeBool
%true = OpConstantTrue %bool
%functy = OpTypeFunction %void
%func = OpFunction %void None %functy
%1 = OpLabel
OpBranch %2
%2 = OpLabel
OpLoopMerge %3 %4 None
OpBranch %5
%5 = OpLabel
OpBranchConditional %true %3 %4
%4 = OpLabel
OpBranch %2
%3 = OpLabel
OpSelectionMerge %6 None
OpBranchConditional %true %7 %8
%7 = OpLabel
OpBranch %6
%8 = OpLabel
OpBranch %9
%9 = OpLabel
OpBranch %6
%6 = OpLabel
OpBranch %10
%11 = OpLabel
OpBranch %10
%10 = OpLabel
OpReturn
OpFunctionEnd
)";
BasicBlock* GetBlock(uint32_t id, std::unique_ptr<IRContext>& context) {
return context->get_instr_block(context->get_def_use_mgr()->GetDef(id));
}
TEST(CommonDominatorsTest, SameBlock) {
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, context);
DominatorAnalysis* analysis =
context->GetDominatorAnalysis(&*context->module()->begin());
for (auto& block : *context->module()->begin()) {
EXPECT_EQ(&block, analysis->CommonDominator(&block, &block));
}
}
TEST(CommonDominatorsTest, ParentAndChild) {
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, context);
DominatorAnalysis* analysis =
context->GetDominatorAnalysis(&*context->module()->begin());
EXPECT_EQ(
GetBlock(1u, context),
analysis->CommonDominator(GetBlock(1u, context), GetBlock(2u, context)));
EXPECT_EQ(
GetBlock(2u, context),
analysis->CommonDominator(GetBlock(2u, context), GetBlock(5u, context)));
EXPECT_EQ(
GetBlock(1u, context),
analysis->CommonDominator(GetBlock(1u, context), GetBlock(5u, context)));
}
TEST(CommonDominatorsTest, BranchSplit) {
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, context);
DominatorAnalysis* analysis =
context->GetDominatorAnalysis(&*context->module()->begin());
EXPECT_EQ(
GetBlock(3u, context),
analysis->CommonDominator(GetBlock(7u, context), GetBlock(8u, context)));
EXPECT_EQ(
GetBlock(3u, context),
analysis->CommonDominator(GetBlock(7u, context), GetBlock(9u, context)));
}
TEST(CommonDominatorsTest, LoopContinueAndMerge) {
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, context);
DominatorAnalysis* analysis =
context->GetDominatorAnalysis(&*context->module()->begin());
EXPECT_EQ(
GetBlock(5u, context),
analysis->CommonDominator(GetBlock(3u, context), GetBlock(4u, context)));
}
TEST(CommonDominatorsTest, NoCommonDominator) {
std::unique_ptr<IRContext> context =
BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text,
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
EXPECT_NE(nullptr, context);
DominatorAnalysis* analysis =
context->GetDominatorAnalysis(&*context->module()->begin());
EXPECT_EQ(nullptr, analysis->CommonDominator(GetBlock(10u, context),
GetBlock(11u, context)));
EXPECT_EQ(nullptr, analysis->CommonDominator(GetBlock(11u, context),
GetBlock(6u, context)));
}
} // namespace
} // namespace opt
} // namespace spvtools
|
