mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-29 22:41:03 +00:00
5dcb576b69
Motivated by integrating spirv-reduce into spirv-fuzz, so that an added function can be made smaller during shrinking, this adds support in spirv-reduce for asking reduction to be restricted to the instructions of a single specified function.
296 lines
8.8 KiB
C++
296 lines
8.8 KiB
C++
// 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/reduce/remove_function_reduction_opportunity_finder.h"
|
|
|
|
#include "source/opt/build_module.h"
|
|
#include "source/reduce/reduction_opportunity.h"
|
|
#include "test/reduce/reduce_test_util.h"
|
|
|
|
namespace spvtools {
|
|
namespace reduce {
|
|
namespace {
|
|
|
|
// Helper to count the number of functions in the module.
|
|
// Remove if there turns out to be a more direct way to do this.
|
|
uint32_t count_functions(opt::IRContext* context) {
|
|
uint32_t result = 0;
|
|
for (auto& function : *context->module()) {
|
|
(void)(function);
|
|
++result;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
TEST(RemoveFunctionTest, BasicCheck) {
|
|
std::string shader = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%6 = OpFunction %2 None %3
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%8 = OpFunction %2 None %3
|
|
%9 = OpLabel
|
|
%10 = OpFunctionCall %2 %6
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const auto env = SPV_ENV_UNIVERSAL_1_3;
|
|
const auto consumer = nullptr;
|
|
const auto context =
|
|
BuildModule(env, consumer, shader, kReduceAssembleOption);
|
|
|
|
ASSERT_EQ(3, count_functions(context.get()));
|
|
|
|
auto ops =
|
|
RemoveFunctionReductionOpportunityFinder().GetAvailableOpportunities(
|
|
context.get(), 0);
|
|
ASSERT_EQ(1, ops.size());
|
|
|
|
ASSERT_TRUE(ops[0]->PreconditionHolds());
|
|
ops[0]->TryToApply();
|
|
|
|
ASSERT_EQ(2, count_functions(context.get()));
|
|
|
|
std::string after_first = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%6 = OpFunction %2 None %3
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CheckEqual(env, after_first, context.get());
|
|
|
|
ops = RemoveFunctionReductionOpportunityFinder().GetAvailableOpportunities(
|
|
context.get(), 0);
|
|
|
|
ASSERT_EQ(1, ops.size());
|
|
|
|
ASSERT_TRUE(ops[0]->PreconditionHolds());
|
|
ops[0]->TryToApply();
|
|
|
|
ASSERT_EQ(1, count_functions(context.get()));
|
|
|
|
std::string after_second = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CheckEqual(env, after_second, context.get());
|
|
}
|
|
|
|
TEST(RemoveFunctionTest, NothingToRemove) {
|
|
std::string shader = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%11 = OpFunctionCall %2 %8
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%6 = OpFunction %2 None %3
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%8 = OpFunction %2 None %3
|
|
%9 = OpLabel
|
|
%10 = OpFunctionCall %2 %6
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const auto env = SPV_ENV_UNIVERSAL_1_3;
|
|
const auto consumer = nullptr;
|
|
const auto context =
|
|
BuildModule(env, consumer, shader, kReduceAssembleOption);
|
|
auto ops =
|
|
RemoveFunctionReductionOpportunityFinder().GetAvailableOpportunities(
|
|
context.get(), 0);
|
|
ASSERT_EQ(0, ops.size());
|
|
}
|
|
|
|
TEST(RemoveFunctionTest, TwoRemovableFunctions) {
|
|
std::string shader = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%6 = OpFunction %2 None %3
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%8 = OpFunction %2 None %3
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const auto env = SPV_ENV_UNIVERSAL_1_3;
|
|
const auto consumer = nullptr;
|
|
const auto context =
|
|
BuildModule(env, consumer, shader, kReduceAssembleOption);
|
|
|
|
ASSERT_EQ(3, count_functions(context.get()));
|
|
|
|
auto ops =
|
|
RemoveFunctionReductionOpportunityFinder().GetAvailableOpportunities(
|
|
context.get(), 0);
|
|
ASSERT_EQ(2, ops.size());
|
|
|
|
ASSERT_TRUE(ops[0]->PreconditionHolds());
|
|
ops[0]->TryToApply();
|
|
ASSERT_EQ(2, count_functions(context.get()));
|
|
ASSERT_TRUE(ops[1]->PreconditionHolds());
|
|
ops[1]->TryToApply();
|
|
ASSERT_EQ(1, count_functions(context.get()));
|
|
|
|
std::string after = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CheckEqual(env, after, context.get());
|
|
}
|
|
|
|
TEST(RemoveFunctionTest, NoRemovalsDueToOpName) {
|
|
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 %6 "foo("
|
|
OpName %8 "bar("
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%6 = OpFunction %2 None %3
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%8 = OpFunction %2 None %3
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const auto env = SPV_ENV_UNIVERSAL_1_3;
|
|
const auto consumer = nullptr;
|
|
const auto context =
|
|
BuildModule(env, consumer, shader, kReduceAssembleOption);
|
|
auto ops =
|
|
RemoveFunctionReductionOpportunityFinder().GetAvailableOpportunities(
|
|
context.get(), 0);
|
|
ASSERT_EQ(0, ops.size());
|
|
}
|
|
|
|
TEST(RemoveFunctionTest, NoRemovalDueToLinkageDecoration) {
|
|
// The non-entry point function is not removable because it is referenced by a
|
|
// linkage decoration. Thus no function can be removed.
|
|
std::string shader = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpName %1 "main"
|
|
OpDecorate %2 LinkageAttributes "ExportedFunc" Export
|
|
%4 = OpTypeVoid
|
|
%5 = OpTypeFunction %4
|
|
%1 = OpFunction %4 None %5
|
|
%6 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%2 = OpFunction %4 None %5
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const auto env = SPV_ENV_UNIVERSAL_1_3;
|
|
const auto consumer = nullptr;
|
|
const auto context =
|
|
BuildModule(env, consumer, shader, kReduceAssembleOption);
|
|
auto ops =
|
|
RemoveFunctionReductionOpportunityFinder().GetAvailableOpportunities(
|
|
context.get(), 0);
|
|
ASSERT_EQ(0, ops.size());
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace reduce
|
|
} // namespace spvtools
|