SPIRV-Tools/test/fuzz/transformation_add_synonym_test.cpp
Alastair Donaldson fcb22ecf0f
spirv-fuzz: Report fresh ids in transformations (#3856)
Adds a virtual method, GetFreshIds(), to Transformation. Every
transformation uses this to indicate which ids in its protobuf message
are fresh ids. This means that when replaying a sequence of
transformations the replayer can obtain a smallest id that is not in
use by the module already and that will not be used by any
transformation by necessity. Ids greater than or equal to this id
can be used as overflow ids.

Fixes #3851.
2020-09-29 22:12:49 +01:00

1470 lines
56 KiB
C++

// Copyright (c) 2020 Vasyl Teliman
//
// 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_add_synonym.h"
#include "source/fuzz/instruction_descriptor.h"
#include "test/fuzz/fuzz_test_util.h"
namespace spvtools {
namespace fuzz {
namespace {
TEST(TransformationAddSynonymTest, NotApplicable) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main"
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpDecorate %8 RelaxedPrecision
OpDecorate %22 RelaxedPrecision
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 3
%10 = OpTypeFloat 32
%11 = OpTypePointer Function %10
%13 = OpConstant %10 4.5
%14 = OpTypeVector %10 2
%15 = OpTypePointer Function %14
%17 = OpConstant %10 3
%18 = OpConstant %10 4
%19 = OpConstantComposite %14 %17 %18
%20 = OpTypeVector %6 2
%21 = OpTypePointer Function %20
%23 = OpConstant %6 4
%24 = OpConstantComposite %20 %9 %23
%26 = OpConstantNull %6
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%12 = OpVariable %11 Function
%16 = OpVariable %15 Function
%22 = OpVariable %21 Function
OpStore %8 %9
OpStore %12 %13
OpStore %16 %19
OpStore %22 %24
%25 = OpUndef %6
%27 = OpLoad %6 %8
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
transformation_context.GetFactManager()->AddFactIdIsIrrelevant(24);
auto insert_before = MakeInstructionDescriptor(22, SpvOpReturn, 0);
#ifndef NDEBUG
ASSERT_DEATH(
TransformationAddSynonym(
9, static_cast<protobufs::TransformationAddSynonym::SynonymType>(-1),
40, insert_before)
.IsApplicable(context.get(), transformation_context),
"Synonym type is invalid");
#endif
// These tests should succeed regardless of the synonym type.
for (int i = 0;
i < protobufs::TransformationAddSynonym::SynonymType_descriptor()
->value_count();
++i) {
const auto* synonym_value =
protobufs::TransformationAddSynonym::SynonymType_descriptor()->value(i);
ASSERT_TRUE(protobufs::TransformationAddSynonym::SynonymType_IsValid(
synonym_value->number()));
auto synonym_type =
static_cast<protobufs::TransformationAddSynonym::SynonymType>(
synonym_value->number());
// |synonym_fresh_id| is not fresh.
ASSERT_FALSE(TransformationAddSynonym(9, synonym_type, 9, insert_before)
.IsApplicable(context.get(), transformation_context));
// |result_id| is invalid.
ASSERT_FALSE(TransformationAddSynonym(40, synonym_type, 40, insert_before)
.IsApplicable(context.get(), transformation_context));
// Instruction with |result_id| has no type id.
ASSERT_FALSE(TransformationAddSynonym(5, synonym_type, 40, insert_before)
.IsApplicable(context.get(), transformation_context));
// Instruction with |result_id| is an OpUndef.
ASSERT_FALSE(TransformationAddSynonym(25, synonym_type, 40, insert_before)
.IsApplicable(context.get(), transformation_context));
// Instruction with |result_id| is an OpConstantNull.
ASSERT_FALSE(TransformationAddSynonym(26, synonym_type, 40, insert_before)
.IsApplicable(context.get(), transformation_context));
// |result_id| is irrelevant.
ASSERT_FALSE(TransformationAddSynonym(24, synonym_type, 40, insert_before)
.IsApplicable(context.get(), transformation_context));
// |insert_before| is invalid.
ASSERT_FALSE(
TransformationAddSynonym(9, synonym_type, 40,
MakeInstructionDescriptor(25, SpvOpStore, 0))
.IsApplicable(context.get(), transformation_context));
// Can't insert before |insert_before|.
ASSERT_FALSE(
TransformationAddSynonym(9, synonym_type, 40,
MakeInstructionDescriptor(5, SpvOpLabel, 0))
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(
9, synonym_type, 40,
MakeInstructionDescriptor(22, SpvOpVariable, 0))
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(
9, synonym_type, 40,
MakeInstructionDescriptor(25, SpvOpFunctionEnd, 0))
.IsApplicable(context.get(), transformation_context));
// Domination rules are not satisfied.
ASSERT_FALSE(
TransformationAddSynonym(27, synonym_type, 40,
MakeInstructionDescriptor(27, SpvOpLoad, 0))
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(
TransformationAddSynonym(27, synonym_type, 40,
MakeInstructionDescriptor(22, SpvOpStore, 1))
.IsApplicable(context.get(), transformation_context));
}
}
TEST(TransformationAddSynonymTest, AddZeroSubZeroMulOne) {
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
%6 = OpTypeInt 32 1
%7 = OpConstant %6 0
%8 = OpConstant %6 1
%9 = OpConstant %6 34
%10 = OpTypeInt 32 0
%13 = OpConstant %10 34
%14 = OpTypeFloat 32
%15 = OpConstant %14 0
%16 = OpConstant %14 1
%17 = OpConstant %14 34
%18 = OpTypeVector %14 2
%19 = OpConstantComposite %18 %15 %15
%20 = OpConstantComposite %18 %16 %16
%21 = OpConstant %14 3
%22 = OpConstant %14 4
%23 = OpConstantComposite %18 %21 %22
%24 = OpTypeVector %6 2
%25 = OpConstantComposite %24 %7 %7
%26 = OpConstantComposite %24 %8 %8
%27 = OpConstant %6 3
%28 = OpConstant %6 4
%29 = OpConstantComposite %24 %27 %28
%30 = OpTypeVector %10 2
%33 = OpConstant %10 3
%34 = OpConstant %10 4
%35 = OpConstantComposite %30 %33 %34
%36 = OpTypeBool
%37 = OpTypeVector %36 2
%38 = OpConstantTrue %36
%39 = OpConstantComposite %37 %38 %38
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
auto insert_before = MakeInstructionDescriptor(5, SpvOpReturn, 0);
uint32_t fresh_id = 50;
for (auto synonym_type : {protobufs::TransformationAddSynonym::ADD_ZERO,
protobufs::TransformationAddSynonym::SUB_ZERO,
protobufs::TransformationAddSynonym::MUL_ONE}) {
ASSERT_TRUE(
TransformationAddSynonym::IsAdditionalConstantRequired(synonym_type));
// Can't create a synonym of a scalar or a vector of a wrong (in this case -
// boolean) type.
ASSERT_FALSE(
TransformationAddSynonym(38, synonym_type, fresh_id, insert_before)
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(
TransformationAddSynonym(39, synonym_type, fresh_id, insert_before)
.IsApplicable(context.get(), transformation_context));
// Required constant is not present in the module.
ASSERT_FALSE(
TransformationAddSynonym(13, synonym_type, fresh_id, insert_before)
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(
TransformationAddSynonym(35, synonym_type, fresh_id, insert_before)
.IsApplicable(context.get(), transformation_context));
for (auto result_id : {9, 17, 23, 29}) {
TransformationAddSynonym transformation(result_id, synonym_type, fresh_id,
insert_before);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(result_id, {}), MakeDataDescriptor(fresh_id, {})));
++fresh_id;
}
}
std::string expected_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
%6 = OpTypeInt 32 1
%7 = OpConstant %6 0
%8 = OpConstant %6 1
%9 = OpConstant %6 34
%10 = OpTypeInt 32 0
%13 = OpConstant %10 34
%14 = OpTypeFloat 32
%15 = OpConstant %14 0
%16 = OpConstant %14 1
%17 = OpConstant %14 34
%18 = OpTypeVector %14 2
%19 = OpConstantComposite %18 %15 %15
%20 = OpConstantComposite %18 %16 %16
%21 = OpConstant %14 3
%22 = OpConstant %14 4
%23 = OpConstantComposite %18 %21 %22
%24 = OpTypeVector %6 2
%25 = OpConstantComposite %24 %7 %7
%26 = OpConstantComposite %24 %8 %8
%27 = OpConstant %6 3
%28 = OpConstant %6 4
%29 = OpConstantComposite %24 %27 %28
%30 = OpTypeVector %10 2
%33 = OpConstant %10 3
%34 = OpConstant %10 4
%35 = OpConstantComposite %30 %33 %34
%36 = OpTypeBool
%37 = OpTypeVector %36 2
%38 = OpConstantTrue %36
%39 = OpConstantComposite %37 %38 %38
%4 = OpFunction %2 None %3
%5 = OpLabel
%50 = OpIAdd %6 %9 %7
%51 = OpFAdd %14 %17 %15
%52 = OpFAdd %18 %23 %19
%53 = OpIAdd %24 %29 %25
%54 = OpISub %6 %9 %7
%55 = OpFSub %14 %17 %15
%56 = OpFSub %18 %23 %19
%57 = OpISub %24 %29 %25
%58 = OpIMul %6 %9 %8
%59 = OpFMul %14 %17 %16
%60 = OpFMul %18 %23 %20
%61 = OpIMul %24 %29 %26
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, expected_shader, context.get()));
}
TEST(TransformationAddSynonymTest, LogicalAndLogicalOr) {
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
%6 = OpTypeBool
%7 = OpConstantFalse %6
%9 = OpConstantTrue %6
%10 = OpTypeVector %6 2
%11 = OpConstantComposite %10 %7 %9
%12 = OpConstantComposite %10 %7 %7
%13 = OpConstantComposite %10 %9 %9
%14 = OpTypeFloat 32
%17 = OpConstant %14 35
%18 = OpTypeVector %14 2
%21 = OpConstant %14 3
%22 = OpConstant %14 4
%23 = OpConstantComposite %18 %21 %22
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
auto insert_before = MakeInstructionDescriptor(5, SpvOpReturn, 0);
uint32_t fresh_id = 50;
for (auto synonym_type : {protobufs::TransformationAddSynonym::LOGICAL_AND,
protobufs::TransformationAddSynonym::LOGICAL_OR}) {
ASSERT_TRUE(
TransformationAddSynonym::IsAdditionalConstantRequired(synonym_type));
// Can't create a synonym of a scalar or a vector of a wrong (in this case -
// float) type.
ASSERT_FALSE(
TransformationAddSynonym(17, synonym_type, fresh_id, insert_before)
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(
TransformationAddSynonym(23, synonym_type, fresh_id, insert_before)
.IsApplicable(context.get(), transformation_context));
for (auto result_id : {9, 11}) {
TransformationAddSynonym transformation(result_id, synonym_type, fresh_id,
insert_before);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(result_id, {}), MakeDataDescriptor(fresh_id, {})));
++fresh_id;
}
}
std::string expected_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
%6 = OpTypeBool
%7 = OpConstantFalse %6
%9 = OpConstantTrue %6
%10 = OpTypeVector %6 2
%11 = OpConstantComposite %10 %7 %9
%12 = OpConstantComposite %10 %7 %7
%13 = OpConstantComposite %10 %9 %9
%14 = OpTypeFloat 32
%17 = OpConstant %14 35
%18 = OpTypeVector %14 2
%21 = OpConstant %14 3
%22 = OpConstant %14 4
%23 = OpConstantComposite %18 %21 %22
%4 = OpFunction %2 None %3
%5 = OpLabel
%50 = OpLogicalAnd %6 %9 %9
%51 = OpLogicalAnd %10 %11 %13
%52 = OpLogicalOr %6 %9 %7
%53 = OpLogicalOr %10 %11 %12
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, expected_shader, context.get()));
}
TEST(TransformationAddSynonymTest, LogicalAndConstantIsNotPresent) {
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
%6 = OpTypeBool
%7 = OpConstantFalse %6
%10 = OpTypeVector %6 2
%12 = OpConstantComposite %10 %7 %7
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
auto insert_before = MakeInstructionDescriptor(5, SpvOpReturn, 0);
const auto synonym_type = protobufs::TransformationAddSynonym::LOGICAL_AND;
// Required constant is not present in the module.
ASSERT_FALSE(TransformationAddSynonym(7, synonym_type, 50, insert_before)
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(12, synonym_type, 50, insert_before)
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAddSynonymTest, LogicalOrConstantIsNotPresent) {
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
%6 = OpTypeBool
%7 = OpConstantTrue %6
%10 = OpTypeVector %6 2
%12 = OpConstantComposite %10 %7 %7
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
auto insert_before = MakeInstructionDescriptor(5, SpvOpReturn, 0);
const auto synonym_type = protobufs::TransformationAddSynonym::LOGICAL_OR;
// Required constant is not present in the module.
ASSERT_FALSE(TransformationAddSynonym(7, synonym_type, 50, insert_before)
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(12, synonym_type, 50, insert_before)
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAddSynonymTest, CopyObject) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main"
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpDecorate %8 RelaxedPrecision
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 4
%10 = OpTypeFloat 32
%11 = OpTypePointer Function %10
%13 = OpConstant %10 4
%14 = OpTypeVector %10 2
%15 = OpTypePointer Function %14
%17 = OpConstant %10 3.4000001
%18 = OpConstantComposite %14 %17 %17
%19 = OpTypeBool
%20 = OpTypeStruct %19
%21 = OpTypePointer Function %20
%23 = OpConstantTrue %19
%24 = OpConstantComposite %20 %23
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%12 = OpVariable %11 Function
%16 = OpVariable %15 Function
%22 = OpVariable %21 Function
OpStore %8 %9
OpStore %12 %13
OpStore %16 %18
OpStore %22 %24
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
auto insert_before = MakeInstructionDescriptor(5, SpvOpReturn, 0);
const auto synonym_type = protobufs::TransformationAddSynonym::COPY_OBJECT;
ASSERT_FALSE(
TransformationAddSynonym::IsAdditionalConstantRequired(synonym_type));
uint32_t fresh_id = 50;
for (auto result_id : {9, 13, 17, 18, 23, 24, 22}) {
TransformationAddSynonym transformation(result_id, synonym_type, fresh_id,
insert_before);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(result_id, {}), MakeDataDescriptor(fresh_id, {})));
++fresh_id;
}
std::string expected_shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main"
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpDecorate %8 RelaxedPrecision
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpConstant %6 4
%10 = OpTypeFloat 32
%11 = OpTypePointer Function %10
%13 = OpConstant %10 4
%14 = OpTypeVector %10 2
%15 = OpTypePointer Function %14
%17 = OpConstant %10 3.4000001
%18 = OpConstantComposite %14 %17 %17
%19 = OpTypeBool
%20 = OpTypeStruct %19
%21 = OpTypePointer Function %20
%23 = OpConstantTrue %19
%24 = OpConstantComposite %20 %23
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%12 = OpVariable %11 Function
%16 = OpVariable %15 Function
%22 = OpVariable %21 Function
OpStore %8 %9
OpStore %12 %13
OpStore %16 %18
OpStore %22 %24
%50 = OpCopyObject %6 %9
%51 = OpCopyObject %10 %13
%52 = OpCopyObject %10 %17
%53 = OpCopyObject %14 %18
%54 = OpCopyObject %19 %23
%55 = OpCopyObject %20 %24
%56 = OpCopyObject %21 %22
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, expected_shader, context.get()));
}
TEST(TransformationAddSynonymTest, CopyBooleanConstants) {
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"
%2 = OpTypeVoid
%6 = OpTypeBool
%7 = OpConstantTrue %6
%8 = OpConstantFalse %6
%3 = OpTypeFunction %2
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
ASSERT_EQ(0, transformation_context.GetFactManager()
->GetIdsForWhichSynonymsAreKnown()
.size());
{
TransformationAddSynonym copy_true(
7, protobufs::TransformationAddSynonym::COPY_OBJECT, 100,
MakeInstructionDescriptor(5, SpvOpReturn, 0));
ASSERT_TRUE(copy_true.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(copy_true, context.get(), &transformation_context);
std::vector<uint32_t> ids_for_which_synonyms_are_known =
transformation_context.GetFactManager()
->GetIdsForWhichSynonymsAreKnown();
ASSERT_EQ(2, ids_for_which_synonyms_are_known.size());
ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(),
ids_for_which_synonyms_are_known.end(),
7) != ids_for_which_synonyms_are_known.end());
ASSERT_EQ(
2, transformation_context.GetFactManager()->GetSynonymsForId(7).size());
protobufs::DataDescriptor descriptor_100 = MakeDataDescriptor(100, {});
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(7, {}), descriptor_100));
}
{
TransformationAddSynonym copy_false(
8, protobufs::TransformationAddSynonym::COPY_OBJECT, 101,
MakeInstructionDescriptor(100, SpvOpReturn, 0));
ASSERT_TRUE(copy_false.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(copy_false, context.get(), &transformation_context);
std::vector<uint32_t> ids_for_which_synonyms_are_known =
transformation_context.GetFactManager()
->GetIdsForWhichSynonymsAreKnown();
ASSERT_EQ(4, ids_for_which_synonyms_are_known.size());
ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(),
ids_for_which_synonyms_are_known.end(),
8) != ids_for_which_synonyms_are_known.end());
ASSERT_EQ(
2, transformation_context.GetFactManager()->GetSynonymsForId(8).size());
protobufs::DataDescriptor descriptor_101 = MakeDataDescriptor(101, {});
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(8, {}), descriptor_101));
}
{
TransformationAddSynonym copy_false_again(
101, protobufs::TransformationAddSynonym::COPY_OBJECT, 102,
MakeInstructionDescriptor(5, SpvOpReturn, 0));
ASSERT_TRUE(
copy_false_again.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(copy_false_again, context.get(),
&transformation_context);
std::vector<uint32_t> ids_for_which_synonyms_are_known =
transformation_context.GetFactManager()
->GetIdsForWhichSynonymsAreKnown();
ASSERT_EQ(5, ids_for_which_synonyms_are_known.size());
ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(),
ids_for_which_synonyms_are_known.end(),
101) != ids_for_which_synonyms_are_known.end());
ASSERT_EQ(
3,
transformation_context.GetFactManager()->GetSynonymsForId(101).size());
protobufs::DataDescriptor descriptor_102 = MakeDataDescriptor(102, {});
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(101, {}), descriptor_102));
}
{
TransformationAddSynonym copy_true_again(
7, protobufs::TransformationAddSynonym::COPY_OBJECT, 103,
MakeInstructionDescriptor(102, SpvOpReturn, 0));
ASSERT_TRUE(
copy_true_again.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(copy_true_again, context.get(),
&transformation_context);
std::vector<uint32_t> ids_for_which_synonyms_are_known =
transformation_context.GetFactManager()
->GetIdsForWhichSynonymsAreKnown();
ASSERT_EQ(6, ids_for_which_synonyms_are_known.size());
ASSERT_TRUE(std::find(ids_for_which_synonyms_are_known.begin(),
ids_for_which_synonyms_are_known.end(),
7) != ids_for_which_synonyms_are_known.end());
ASSERT_EQ(
3, transformation_context.GetFactManager()->GetSynonymsForId(7).size());
protobufs::DataDescriptor descriptor_103 = MakeDataDescriptor(103, {});
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
MakeDataDescriptor(7, {}), descriptor_103));
}
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"
%2 = OpTypeVoid
%6 = OpTypeBool
%7 = OpConstantTrue %6
%8 = OpConstantFalse %6
%3 = OpTypeFunction %2
%4 = OpFunction %2 None %3
%5 = OpLabel
%100 = OpCopyObject %6 %7
%101 = OpCopyObject %6 %8
%102 = OpCopyObject %6 %101
%103 = OpCopyObject %6 %7
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
TEST(TransformationAddSynonymTest, CheckIllegalCases) {
// The following SPIR-V comes from this GLSL, pushed through spirv-opt
// and then doctored a bit.
//
// #version 310 es
//
// precision highp float;
//
// struct S {
// int a;
// float b;
// };
//
// layout(set = 0, binding = 2) uniform block {
// S s;
// lowp float f;
// int ii;
// } ubuf;
//
// layout(location = 0) out vec4 color;
//
// void main() {
// float c = 0.0;
// lowp float d = 0.0;
// S localS = ubuf.s;
// for (int i = 0; i < ubuf.s.a; i++) {
// switch (ubuf.ii) {
// case 0:
// c += 0.1;
// d += 0.2;
// case 1:
// c += 0.1;
// if (c > d) {
// d += 0.2;
// } else {
// d += c;
// }
// break;
// default:
// i += 1;
// localS.b += d;
// }
// }
// color = vec4(c, d, localS.b, 1.0);
// }
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %80
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
OpName %4 "main"
OpName %12 "S"
OpMemberName %12 0 "a"
OpMemberName %12 1 "b"
OpName %15 "S"
OpMemberName %15 0 "a"
OpMemberName %15 1 "b"
OpName %16 "block"
OpMemberName %16 0 "s"
OpMemberName %16 1 "f"
OpMemberName %16 2 "ii"
OpName %18 "ubuf"
OpName %80 "color"
OpMemberDecorate %12 0 RelaxedPrecision
OpMemberDecorate %15 0 RelaxedPrecision
OpMemberDecorate %15 0 Offset 0
OpMemberDecorate %15 1 Offset 4
OpMemberDecorate %16 0 Offset 0
OpMemberDecorate %16 1 RelaxedPrecision
OpMemberDecorate %16 1 Offset 16
OpMemberDecorate %16 2 RelaxedPrecision
OpMemberDecorate %16 2 Offset 20
OpDecorate %16 Block
OpDecorate %18 DescriptorSet 0
OpDecorate %18 Binding 2
OpDecorate %38 RelaxedPrecision
OpDecorate %43 RelaxedPrecision
OpDecorate %53 RelaxedPrecision
OpDecorate %62 RelaxedPrecision
OpDecorate %69 RelaxedPrecision
OpDecorate %77 RelaxedPrecision
OpDecorate %80 Location 0
OpDecorate %101 RelaxedPrecision
OpDecorate %102 RelaxedPrecision
OpDecorate %96 RelaxedPrecision
OpDecorate %108 RelaxedPrecision
OpDecorate %107 RelaxedPrecision
OpDecorate %98 RelaxedPrecision
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%9 = OpConstant %6 0
%11 = OpTypeInt 32 1
%12 = OpTypeStruct %11 %6
%15 = OpTypeStruct %11 %6
%16 = OpTypeStruct %15 %6 %11
%17 = OpTypePointer Uniform %16
%18 = OpVariable %17 Uniform
%19 = OpConstant %11 0
%20 = OpTypePointer Uniform %15
%27 = OpConstant %11 1
%36 = OpTypePointer Uniform %11
%39 = OpTypeBool
%41 = OpConstant %11 2
%48 = OpConstant %6 0.100000001
%51 = OpConstant %6 0.200000003
%78 = OpTypeVector %6 4
%79 = OpTypePointer Output %78
%80 = OpVariable %79 Output
%85 = OpConstant %6 1
%95 = OpUndef %12
%112 = OpTypePointer Uniform %6
%113 = OpTypeInt 32 0
%114 = OpConstant %113 1
%179 = OpTypePointer Function %39
%4 = OpFunction %2 None %3
%5 = OpLabel
%180 = OpVariable %179 Function
%181 = OpVariable %179 Function
%182 = OpVariable %179 Function
%21 = OpAccessChain %20 %18 %19
%115 = OpAccessChain %112 %21 %114
%116 = OpLoad %6 %115
%90 = OpCompositeInsert %12 %116 %95 1
OpBranch %30
%30 = OpLabel
%99 = OpPhi %12 %90 %5 %109 %47
%98 = OpPhi %6 %9 %5 %107 %47
%97 = OpPhi %6 %9 %5 %105 %47
%96 = OpPhi %11 %19 %5 %77 %47
%37 = OpAccessChain %36 %18 %19 %19
%38 = OpLoad %11 %37
%40 = OpSLessThan %39 %96 %38
OpLoopMerge %32 %47 None
OpBranchConditional %40 %31 %32
%31 = OpLabel
%42 = OpAccessChain %36 %18 %41
%43 = OpLoad %11 %42
OpSelectionMerge %45 None
OpSwitch %43 %46 0 %44 1 %45
%46 = OpLabel
%69 = OpIAdd %11 %96 %27
%72 = OpCompositeExtract %6 %99 1
%73 = OpFAdd %6 %72 %98
%93 = OpCompositeInsert %12 %73 %99 1
OpBranch %47
%44 = OpLabel
%50 = OpFAdd %6 %97 %48
%53 = OpFAdd %6 %98 %51
OpBranch %45
%45 = OpLabel
%101 = OpPhi %6 %98 %31 %53 %44
%100 = OpPhi %6 %97 %31 %50 %44
%55 = OpFAdd %6 %100 %48
%58 = OpFOrdGreaterThan %39 %55 %101
OpSelectionMerge %60 None
OpBranchConditional %58 %59 %63
%59 = OpLabel
%62 = OpFAdd %6 %101 %51
OpBranch %60
%63 = OpLabel
%66 = OpFAdd %6 %101 %55
OpBranch %60
%60 = OpLabel
%108 = OpPhi %6 %62 %59 %66 %63
OpBranch %47
%47 = OpLabel
%109 = OpPhi %12 %93 %46 %99 %60
%107 = OpPhi %6 %98 %46 %108 %60
%105 = OpPhi %6 %97 %46 %55 %60
%102 = OpPhi %11 %69 %46 %96 %60
%77 = OpIAdd %11 %102 %27
OpBranch %30
%32 = OpLabel
%84 = OpCompositeExtract %6 %99 1
%86 = OpCompositeConstruct %78 %97 %98 %84 %85
OpStore %80 %86
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
// Inapplicable because %18 is decorated.
ASSERT_FALSE(TransformationAddSynonym(
18, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(21, SpvOpAccessChain, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because %77 is decorated.
ASSERT_FALSE(TransformationAddSynonym(
77, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(77, SpvOpBranch, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because %80 is decorated.
ASSERT_FALSE(TransformationAddSynonym(
80, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(77, SpvOpIAdd, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because %84 is not available at the requested point
ASSERT_FALSE(TransformationAddSynonym(
84, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(32, SpvOpCompositeExtract, 0))
.IsApplicable(context.get(), transformation_context));
// Fine because %84 is available at the requested point
ASSERT_TRUE(TransformationAddSynonym(
84, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(32, SpvOpCompositeConstruct, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because id %9 is already in use
ASSERT_FALSE(TransformationAddSynonym(
84, protobufs::TransformationAddSynonym::COPY_OBJECT, 9,
MakeInstructionDescriptor(32, SpvOpCompositeConstruct, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because the requested point does not exist
ASSERT_FALSE(TransformationAddSynonym(
84, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(86, SpvOpReturn, 2))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because %9 is not in a function
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(9, SpvOpTypeInt, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because the insert point is right before, or inside, a chunk
// of OpPhis
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(30, SpvOpPhi, 0))
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(99, SpvOpPhi, 1))
.IsApplicable(context.get(), transformation_context));
// OK, because the insert point is just after a chunk of OpPhis.
ASSERT_TRUE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(96, SpvOpAccessChain, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because the insert point is right after an OpSelectionMerge
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(58, SpvOpBranchConditional, 0))
.IsApplicable(context.get(), transformation_context));
// OK, because the insert point is right before the OpSelectionMerge
ASSERT_TRUE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(58, SpvOpSelectionMerge, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because the insert point is right after an OpSelectionMerge
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(43, SpvOpSwitch, 0))
.IsApplicable(context.get(), transformation_context));
// OK, because the insert point is right before the OpSelectionMerge
ASSERT_TRUE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(43, SpvOpSelectionMerge, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because the insert point is right after an OpLoopMerge
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(40, SpvOpBranchConditional, 0))
.IsApplicable(context.get(), transformation_context));
// OK, because the insert point is right before the OpLoopMerge
ASSERT_TRUE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(40, SpvOpLoopMerge, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because id %300 does not exist
ASSERT_FALSE(TransformationAddSynonym(
300, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(40, SpvOpLoopMerge, 0))
.IsApplicable(context.get(), transformation_context));
// Inapplicable because the following instruction is OpVariable
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(180, SpvOpVariable, 0))
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(181, SpvOpVariable, 0))
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(182, SpvOpVariable, 0))
.IsApplicable(context.get(), transformation_context));
// OK, because this is just past the group of OpVariable instructions.
ASSERT_TRUE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 200,
MakeInstructionDescriptor(182, SpvOpAccessChain, 0))
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAddSynonymTest, MiscellaneousCopies) {
// The following SPIR-V comes from this GLSL:
//
// #version 310 es
//
// precision highp float;
//
// float g;
//
// vec4 h;
//
// void main() {
// int a;
// int b;
// b = int(g);
// h.x = float(a);
// }
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 "b"
OpName %11 "g"
OpName %16 "h"
OpName %17 "a"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpTypeFloat 32
%10 = OpTypePointer Private %9
%11 = OpVariable %10 Private
%14 = OpTypeVector %9 4
%15 = OpTypePointer Private %14
%16 = OpVariable %15 Private
%20 = OpTypeInt 32 0
%21 = OpConstant %20 0
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%17 = OpVariable %7 Function
%12 = OpLoad %9 %11
%13 = OpConvertFToS %6 %12
OpStore %8 %13
%18 = OpLoad %6 %17
%19 = OpConvertSToF %9 %18
%22 = OpAccessChain %10 %16 %21
OpStore %22 %19
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
std::vector<TransformationAddSynonym> transformations = {
TransformationAddSynonym(
19, protobufs::TransformationAddSynonym::COPY_OBJECT, 100,
MakeInstructionDescriptor(22, SpvOpStore, 0)),
TransformationAddSynonym(
22, protobufs::TransformationAddSynonym::COPY_OBJECT, 101,
MakeInstructionDescriptor(22, SpvOpCopyObject, 0)),
TransformationAddSynonym(
12, protobufs::TransformationAddSynonym::COPY_OBJECT, 102,
MakeInstructionDescriptor(22, SpvOpCopyObject, 0)),
TransformationAddSynonym(
11, protobufs::TransformationAddSynonym::COPY_OBJECT, 103,
MakeInstructionDescriptor(22, SpvOpCopyObject, 0)),
TransformationAddSynonym(
16, protobufs::TransformationAddSynonym::COPY_OBJECT, 104,
MakeInstructionDescriptor(22, SpvOpCopyObject, 0)),
TransformationAddSynonym(
8, protobufs::TransformationAddSynonym::COPY_OBJECT, 105,
MakeInstructionDescriptor(22, SpvOpCopyObject, 0)),
TransformationAddSynonym(
17, protobufs::TransformationAddSynonym::COPY_OBJECT, 106,
MakeInstructionDescriptor(22, SpvOpCopyObject, 0))};
for (auto& transformation : transformations) {
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
}
ASSERT_TRUE(IsValid(env, context.get()));
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 "b"
OpName %11 "g"
OpName %16 "h"
OpName %17 "a"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%9 = OpTypeFloat 32
%10 = OpTypePointer Private %9
%11 = OpVariable %10 Private
%14 = OpTypeVector %9 4
%15 = OpTypePointer Private %14
%16 = OpVariable %15 Private
%20 = OpTypeInt 32 0
%21 = OpConstant %20 0
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%17 = OpVariable %7 Function
%12 = OpLoad %9 %11
%13 = OpConvertFToS %6 %12
OpStore %8 %13
%18 = OpLoad %6 %17
%19 = OpConvertSToF %9 %18
%22 = OpAccessChain %10 %16 %21
%106 = OpCopyObject %7 %17
%105 = OpCopyObject %7 %8
%104 = OpCopyObject %15 %16
%103 = OpCopyObject %10 %11
%102 = OpCopyObject %9 %12
%101 = OpCopyObject %10 %22
%100 = OpCopyObject %9 %19
OpStore %22 %19
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
TEST(TransformationAddSynonymTest, DoNotCopyNullOrUndefPointers) {
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
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%8 = OpConstantNull %7
%9 = OpUndef %7
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
// Illegal to copy null.
ASSERT_FALSE(TransformationAddSynonym(
8, protobufs::TransformationAddSynonym::COPY_OBJECT, 100,
MakeInstructionDescriptor(5, SpvOpReturn, 0))
.IsApplicable(context.get(), transformation_context));
// Illegal to copy an OpUndef of pointer type.
ASSERT_FALSE(TransformationAddSynonym(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 100,
MakeInstructionDescriptor(5, SpvOpReturn, 0))
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAddSynonymTest, PropagateIrrelevantPointeeFact) {
// Checks that if a pointer is known to have an irrelevant value, the same
// holds after the pointer is copied.
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
%6 = OpTypeInt 32 1
%7 = OpTypePointer Function %6
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpVariable %7 Function
%9 = OpVariable %7 Function
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
ASSERT_TRUE(IsValid(env, context.get()));
spvtools::ValidatorOptions validator_options;
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
transformation_context.GetFactManager()->AddFactValueOfPointeeIsIrrelevant(8);
TransformationAddSynonym transformation1(
8, protobufs::TransformationAddSynonym::COPY_OBJECT, 100,
MakeInstructionDescriptor(9, SpvOpReturn, 0));
TransformationAddSynonym transformation2(
9, protobufs::TransformationAddSynonym::COPY_OBJECT, 101,
MakeInstructionDescriptor(9, SpvOpReturn, 0));
TransformationAddSynonym transformation3(
100, protobufs::TransformationAddSynonym::COPY_OBJECT, 102,
MakeInstructionDescriptor(9, SpvOpReturn, 0));
ASSERT_TRUE(
transformation1.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation1, context.get(),
&transformation_context);
ASSERT_TRUE(
transformation2.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation2, context.get(),
&transformation_context);
ASSERT_TRUE(
transformation3.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation3, context.get(),
&transformation_context);
ASSERT_TRUE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(8));
ASSERT_TRUE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(100));
ASSERT_TRUE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(102));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(9));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(101));
}
TEST(TransformationAddSynonymTest, DoNotCopyOpSampledImage) {
// This checks that we do not try to copy the result id of an OpSampledImage
// instruction.
std::string shader = R"(
OpCapability Shader
OpCapability SampledBuffer
OpCapability ImageBuffer
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main" %40 %41
OpExecutionMode %2 OriginUpperLeft
OpSource GLSL 450
OpDecorate %40 DescriptorSet 0
OpDecorate %40 Binding 69
OpDecorate %41 DescriptorSet 0
OpDecorate %41 Binding 1
%54 = OpTypeFloat 32
%76 = OpTypeVector %54 4
%55 = OpConstant %54 0
%56 = OpTypeVector %54 3
%94 = OpTypeVector %54 2
%112 = OpConstantComposite %94 %55 %55
%57 = OpConstantComposite %56 %55 %55 %55
%15 = OpTypeImage %54 2D 2 0 0 1 Unknown
%114 = OpTypePointer UniformConstant %15
%38 = OpTypeSampler
%125 = OpTypePointer UniformConstant %38
%132 = OpTypeVoid
%133 = OpTypeFunction %132
%45 = OpTypeSampledImage %15
%40 = OpVariable %114 UniformConstant
%41 = OpVariable %125 UniformConstant
%2 = OpFunction %132 None %133
%164 = OpLabel
%184 = OpLoad %15 %40
%213 = OpLoad %38 %41
%216 = OpSampledImage %45 %184 %213
%217 = OpImageSampleImplicitLod %76 %216 %112 Bias %55
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);
ASSERT_FALSE(
TransformationAddSynonym(
216, protobufs::TransformationAddSynonym::COPY_OBJECT, 500,
MakeInstructionDescriptor(217, SpvOpImageSampleImplicitLod, 0))
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAddSynonymTest, DoNotCopyVoidRunctionResult) {
// This checks that we do not try to copy the result of a void function.
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main"
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 320
OpName %4 "main"
OpName %6 "foo("
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%4 = OpFunction %2 None %3
%5 = OpLabel
%8 = OpFunctionCall %2 %6
OpReturn
OpFunctionEnd
%6 = OpFunction %2 None %3
%7 = 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);
ASSERT_FALSE(TransformationAddSynonym(
8, protobufs::TransformationAddSynonym::COPY_OBJECT, 500,
MakeInstructionDescriptor(8, SpvOpReturn, 0))
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAddSynonymTest, HandlesDeadBlocks) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main"
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 320
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeBool
%7 = OpConstantTrue %6
%11 = OpTypePointer Function %6
%4 = OpFunction %2 None %3
%5 = OpLabel
%12 = OpVariable %11 Function
OpSelectionMerge %10 None
OpBranchConditional %7 %8 %9
%8 = OpLabel
OpBranch %10
%9 = OpLabel
OpBranch %10
%10 = 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);
transformation_context.GetFactManager()->AddFactBlockIsDead(9);
auto insert_before = MakeInstructionDescriptor(9, SpvOpBranch, 0);
ASSERT_FALSE(TransformationAddSynonym(
7, protobufs::TransformationAddSynonym::COPY_OBJECT, 100,
insert_before)
.IsApplicable(context.get(), transformation_context));
ASSERT_FALSE(TransformationAddSynonym(
12, protobufs::TransformationAddSynonym::COPY_OBJECT, 100,
insert_before)
.IsApplicable(context.get(), transformation_context));
}
} // namespace
} // namespace fuzz
} // namespace spvtools