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https://github.com/KhronosGroup/SPIRV-Tools
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3d39517961
To help ensure that optimizations that do less cautious invalidation of analyses are implemented correctly, this change adds checks to the tests of various transformations to ensure that analyses such as def-use are up to date.
173 lines
5.9 KiB
C++
173 lines
5.9 KiB
C++
// Copyright (c) 2020 Vasyl Teliman
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/fuzz/transformation_permute_phi_operands.h"
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#include "gtest/gtest.h"
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#include "source/fuzz/fuzzer_util.h"
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#include "test/fuzz/fuzz_test_util.h"
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namespace spvtools {
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namespace fuzz {
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namespace {
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TEST(TransformationPermutePhiOperandsTest, BasicTest) {
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std::string shader = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpTypePointer Function %6
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%9 = OpConstant %6 0
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%11 = OpConstant %6 1
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%14 = OpTypeBool
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%8 = OpVariable %7 Function
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%10 = OpVariable %7 Function
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OpStore %8 %9
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OpStore %10 %11
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%12 = OpLoad %6 %8
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%13 = OpLoad %6 %10
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%15 = OpSLessThan %14 %12 %13
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OpSelectionMerge %17 None
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OpBranchConditional %15 %16 %21
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%16 = OpLabel
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%18 = OpLoad %6 %10
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%19 = OpLoad %6 %8
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%20 = OpIAdd %6 %19 %18
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OpBranch %17
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%21 = OpLabel
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%22 = OpLoad %6 %10
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%23 = OpLoad %6 %8
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%24 = OpISub %6 %23 %22
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OpBranch %17
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%17 = OpLabel
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%25 = OpPhi %6 %20 %16 %24 %21
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OpStore %8 %25
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OpReturn
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OpFunctionEnd
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)";
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const auto env = SPV_ENV_UNIVERSAL_1_3;
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const auto consumer = nullptr;
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const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
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spvtools::ValidatorOptions validator_options;
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
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kConsoleMessageConsumer));
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TransformationContext transformation_context(
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MakeUnique<FactManager>(context.get()), validator_options);
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// Result id is invalid.
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ASSERT_FALSE(TransformationPermutePhiOperands(26, {}).IsApplicable(
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context.get(), transformation_context));
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// Result id is not of an OpPhi instruction.
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ASSERT_FALSE(TransformationPermutePhiOperands(24, {}).IsApplicable(
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context.get(), transformation_context));
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// Result id is not of an OpPhi instruction.
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ASSERT_FALSE(TransformationPermutePhiOperands(24, {}).IsApplicable(
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context.get(), transformation_context));
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// Permutation has invalid size.
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ASSERT_FALSE(TransformationPermutePhiOperands(25, {0, 1, 2})
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.IsApplicable(context.get(), transformation_context));
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#ifndef NDEBUG
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// Permutation has duplicates.
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ASSERT_DEATH(TransformationPermutePhiOperands(25, {0, 0})
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.IsApplicable(context.get(), transformation_context),
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"Permutation has duplicates");
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#endif
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// Permutation's values are not in range.
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ASSERT_FALSE(TransformationPermutePhiOperands(25, {1, 2})
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.IsApplicable(context.get(), transformation_context));
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TransformationPermutePhiOperands transformation(25, {1, 0});
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ASSERT_TRUE(
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transformation.IsApplicable(context.get(), transformation_context));
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ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context);
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// Check that the def-use manager knows that the phi instruction's ids have
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// been permuted.
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std::vector<std::pair<uint32_t, uint32_t>> phi_operand_to_new_operand_index =
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{{20, 4}, {16, 5}, {24, 2}, {21, 3}};
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for (std::pair<uint32_t, uint32_t>& entry :
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phi_operand_to_new_operand_index) {
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context->get_def_use_mgr()->WhileEachUse(
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entry.first,
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[&entry](opt::Instruction* inst, uint32_t operand_index) -> bool {
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if (inst->result_id() == 25) {
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EXPECT_EQ(entry.second, operand_index);
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return false;
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}
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return true;
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});
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}
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std::string after_transformation = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpTypePointer Function %6
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%9 = OpConstant %6 0
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%11 = OpConstant %6 1
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%14 = OpTypeBool
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%8 = OpVariable %7 Function
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%10 = OpVariable %7 Function
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OpStore %8 %9
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OpStore %10 %11
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%12 = OpLoad %6 %8
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%13 = OpLoad %6 %10
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%15 = OpSLessThan %14 %12 %13
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OpSelectionMerge %17 None
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OpBranchConditional %15 %16 %21
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%16 = OpLabel
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%18 = OpLoad %6 %10
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%19 = OpLoad %6 %8
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%20 = OpIAdd %6 %19 %18
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OpBranch %17
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%21 = OpLabel
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%22 = OpLoad %6 %10
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%23 = OpLoad %6 %8
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%24 = OpISub %6 %23 %22
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OpBranch %17
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%17 = OpLabel
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%25 = OpPhi %6 %24 %21 %20 %16
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OpStore %8 %25
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OpReturn
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OpFunctionEnd
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)";
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ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
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}
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} // namespace
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} // namespace fuzz
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} // namespace spvtools
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