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- // Copyright (c) 2019 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 "source/fuzz/transformation_set_selection_control.h"
- #include "gtest/gtest.h"
- #include "source/fuzz/fuzzer_util.h"
- #include "test/fuzz/fuzz_test_util.h"
- namespace spvtools {
- namespace fuzz {
- namespace {
- TEST(TransformationSetSelectionControlTest, VariousScenarios) {
- // This is a simple transformation; this test captures the important things
- // to check for.
- std::string shader = R"(
- OpCapability Shader
- %1 = OpExtInstImport "GLSL.std.450"
- OpMemoryModel Logical GLSL450
- OpEntryPoint Fragment %4 "main"
- OpExecutionMode %4 OriginUpperLeft
- OpSource ESSL 310
- OpName %4 "main"
- OpName %8 "i"
- %2 = OpTypeVoid
- %3 = OpTypeFunction %2
- %6 = OpTypeInt 32 1
- %7 = OpTypePointer Function %6
- %9 = OpConstant %6 0
- %16 = OpConstant %6 10
- %17 = OpTypeBool
- %20 = OpConstant %6 3
- %25 = OpConstant %6 1
- %28 = OpConstant %6 2
- %38 = OpConstant %6 4
- %4 = OpFunction %2 None %3
- %5 = OpLabel
- %8 = OpVariable %7 Function
- OpStore %8 %9
- OpBranch %10
- %10 = OpLabel
- OpLoopMerge %12 %13 None
- OpBranch %14
- %14 = OpLabel
- %15 = OpLoad %6 %8
- %18 = OpSLessThan %17 %15 %16
- OpBranchConditional %18 %11 %12
- %11 = OpLabel
- %19 = OpLoad %6 %8
- %21 = OpSGreaterThan %17 %19 %20
- OpSelectionMerge %23 Flatten
- OpBranchConditional %21 %22 %23
- %22 = OpLabel
- %24 = OpLoad %6 %8
- %26 = OpIAdd %6 %24 %25
- OpStore %8 %26
- OpBranch %23
- %23 = OpLabel
- %27 = OpLoad %6 %8
- %29 = OpSLessThan %17 %27 %28
- OpSelectionMerge %31 DontFlatten
- OpBranchConditional %29 %30 %31
- %30 = OpLabel
- %32 = OpLoad %6 %8
- %33 = OpISub %6 %32 %25
- OpStore %8 %33
- OpBranch %31
- %31 = OpLabel
- %34 = OpLoad %6 %8
- OpSelectionMerge %37 None
- OpSwitch %34 %36 0 %35
- %36 = OpLabel
- OpBranch %37
- %35 = OpLabel
- %39 = OpLoad %6 %8
- %40 = OpIAdd %6 %39 %38
- OpStore %8 %40
- OpBranch %36
- %37 = OpLabel
- OpBranch %13
- %13 = OpLabel
- %43 = OpLoad %6 %8
- %44 = OpIAdd %6 %43 %25
- OpStore %8 %44
- OpBranch %10
- %12 = OpLabel
- OpReturn
- OpFunctionEnd
- )";
- const auto env = SPV_ENV_UNIVERSAL_1_3;
- const auto consumer = nullptr;
- const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
- spvtools::ValidatorOptions validator_options;
- TransformationContext transformation_context(
- MakeUnique<FactManager>(context.get()), validator_options);
- // %44 is not a block
- ASSERT_FALSE(TransformationSetSelectionControl(
- 44, uint32_t(spv::SelectionControlMask::Flatten))
- .IsApplicable(context.get(), transformation_context));
- // %13 does not end with OpSelectionMerge
- ASSERT_FALSE(TransformationSetSelectionControl(
- 13, uint32_t(spv::SelectionControlMask::MaskNone))
- .IsApplicable(context.get(), transformation_context));
- // %10 ends in OpLoopMerge, not OpSelectionMerge
- ASSERT_FALSE(TransformationSetSelectionControl(
- 10, uint32_t(spv::SelectionControlMask::MaskNone))
- .IsApplicable(context.get(), transformation_context));
- TransformationSetSelectionControl transformation1(
- 11, uint32_t(spv::SelectionControlMask::DontFlatten));
- ASSERT_TRUE(
- transformation1.IsApplicable(context.get(), transformation_context));
- ApplyAndCheckFreshIds(transformation1, context.get(),
- &transformation_context);
- TransformationSetSelectionControl transformation2(
- 23, uint32_t(spv::SelectionControlMask::Flatten));
- ASSERT_TRUE(
- transformation2.IsApplicable(context.get(), transformation_context));
- ApplyAndCheckFreshIds(transformation2, context.get(),
- &transformation_context);
- TransformationSetSelectionControl transformation3(
- 31, uint32_t(spv::SelectionControlMask::MaskNone));
- ASSERT_TRUE(
- transformation3.IsApplicable(context.get(), transformation_context));
- ApplyAndCheckFreshIds(transformation3, context.get(),
- &transformation_context);
- TransformationSetSelectionControl transformation4(
- 31, uint32_t(spv::SelectionControlMask::Flatten));
- ASSERT_TRUE(
- transformation4.IsApplicable(context.get(), transformation_context));
- ApplyAndCheckFreshIds(transformation4, context.get(),
- &transformation_context);
- std::string after_transformation = R"(
- OpCapability Shader
- %1 = OpExtInstImport "GLSL.std.450"
- OpMemoryModel Logical GLSL450
- OpEntryPoint Fragment %4 "main"
- OpExecutionMode %4 OriginUpperLeft
- OpSource ESSL 310
- OpName %4 "main"
- OpName %8 "i"
- %2 = OpTypeVoid
- %3 = OpTypeFunction %2
- %6 = OpTypeInt 32 1
- %7 = OpTypePointer Function %6
- %9 = OpConstant %6 0
- %16 = OpConstant %6 10
- %17 = OpTypeBool
- %20 = OpConstant %6 3
- %25 = OpConstant %6 1
- %28 = OpConstant %6 2
- %38 = OpConstant %6 4
- %4 = OpFunction %2 None %3
- %5 = OpLabel
- %8 = OpVariable %7 Function
- OpStore %8 %9
- OpBranch %10
- %10 = OpLabel
- OpLoopMerge %12 %13 None
- OpBranch %14
- %14 = OpLabel
- %15 = OpLoad %6 %8
- %18 = OpSLessThan %17 %15 %16
- OpBranchConditional %18 %11 %12
- %11 = OpLabel
- %19 = OpLoad %6 %8
- %21 = OpSGreaterThan %17 %19 %20
- OpSelectionMerge %23 DontFlatten
- OpBranchConditional %21 %22 %23
- %22 = OpLabel
- %24 = OpLoad %6 %8
- %26 = OpIAdd %6 %24 %25
- OpStore %8 %26
- OpBranch %23
- %23 = OpLabel
- %27 = OpLoad %6 %8
- %29 = OpSLessThan %17 %27 %28
- OpSelectionMerge %31 Flatten
- OpBranchConditional %29 %30 %31
- %30 = OpLabel
- %32 = OpLoad %6 %8
- %33 = OpISub %6 %32 %25
- OpStore %8 %33
- OpBranch %31
- %31 = OpLabel
- %34 = OpLoad %6 %8
- OpSelectionMerge %37 Flatten
- OpSwitch %34 %36 0 %35
- %36 = OpLabel
- OpBranch %37
- %35 = OpLabel
- %39 = OpLoad %6 %8
- %40 = OpIAdd %6 %39 %38
- OpStore %8 %40
- OpBranch %36
- %37 = OpLabel
- OpBranch %13
- %13 = OpLabel
- %43 = OpLoad %6 %8
- %44 = OpIAdd %6 %43 %25
- OpStore %8 %44
- OpBranch %10
- %12 = OpLabel
- OpReturn
- OpFunctionEnd
- )";
- ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
- }
- } // namespace
- } // namespace fuzz
- } // namespace spvtools
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