1 // Copyright (c) 2019 Google LLC
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "source/fuzz/fact_manager/fact_manager.h"
16
17 #include "gtest/gtest.h"
18 #include "source/fuzz/fuzzer_util.h"
19 #include "test/fuzz/fuzz_test_util.h"
20
21 namespace spvtools {
22 namespace fuzz {
23 namespace {
24
TEST(DeadBlockFactsTest,BlockIsDead)25 TEST(DeadBlockFactsTest, BlockIsDead) {
26 std::string shader = R"(
27 OpCapability Shader
28 %1 = OpExtInstImport "GLSL.std.450"
29 OpMemoryModel Logical GLSL450
30 OpEntryPoint Fragment %2 "main"
31 OpExecutionMode %2 OriginUpperLeft
32 OpSource ESSL 310
33 %3 = OpTypeVoid
34 %4 = OpTypeFunction %3
35 %5 = OpTypeBool
36 %6 = OpConstantTrue %5
37 %7 = OpTypeInt 32 1
38 %8 = OpTypePointer Function %7
39 %2 = OpFunction %3 None %4
40 %9 = OpLabel
41 OpSelectionMerge %10 None
42 OpBranchConditional %6 %11 %12
43 %11 = OpLabel
44 OpBranch %10
45 %12 = OpLabel
46 OpBranch %10
47 %10 = OpLabel
48 OpReturn
49 OpFunctionEnd
50 )";
51
52 const auto env = SPV_ENV_UNIVERSAL_1_5;
53 const auto consumer = nullptr;
54 const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
55 spvtools::ValidatorOptions validator_options;
56 ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
57 kConsoleMessageConsumer));
58
59 FactManager fact_manager(context.get());
60
61 ASSERT_FALSE(fact_manager.BlockIsDead(9));
62 ASSERT_FALSE(fact_manager.BlockIsDead(11));
63 ASSERT_FALSE(fact_manager.BlockIsDead(12));
64
65 fact_manager.AddFactBlockIsDead(12);
66
67 ASSERT_FALSE(fact_manager.BlockIsDead(9));
68 ASSERT_FALSE(fact_manager.BlockIsDead(11));
69 ASSERT_TRUE(fact_manager.BlockIsDead(12));
70 }
71
72 } // namespace
73 } // namespace fuzz
74 } // namespace spvtools
75