SPIRV-Tools/test/fuzz/transformation_access_chain_test.cpp
alan-baker d35a78db57
Switch SPIRV-Tools to use spirv.hpp11 internally (#4981)
Fixes #4960

* Switches to using enum classes with an underlying type to avoid
  undefined behaviour
2022-11-04 17:27:10 -04:00

785 lines
30 KiB
C++

// Copyright (c) 2020 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_access_chain.h"
#include "gtest/gtest.h"
#include "source/fuzz/fuzzer_util.h"
#include "source/fuzz/instruction_descriptor.h"
#include "test/fuzz/fuzz_test_util.h"
namespace spvtools {
namespace fuzz {
namespace {
TEST(TransformationAccessChainTest, BasicTest) {
std::string shader = R"(
OpCapability Shader
OpCapability VariablePointers
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %48 %54
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeVector %6 2
%50 = OpTypeMatrix %7 2
%70 = OpTypePointer Function %7
%71 = OpTypePointer Function %50
%8 = OpTypeStruct %7 %6
%9 = OpTypePointer Function %8
%10 = OpTypeInt 32 1
%11 = OpTypePointer Function %10
%12 = OpTypeFunction %10 %9 %11
%17 = OpConstant %10 0
%18 = OpTypeInt 32 0
%19 = OpConstant %18 0
%20 = OpTypePointer Function %6
%99 = OpTypePointer Private %6
%29 = OpConstant %6 0
%30 = OpConstant %6 1
%31 = OpConstantComposite %7 %29 %30
%32 = OpConstant %6 2
%33 = OpConstantComposite %8 %31 %32
%35 = OpConstant %10 10
%51 = OpConstant %18 10
%80 = OpConstant %18 0
%81 = OpConstant %10 1
%82 = OpConstant %18 2
%83 = OpConstant %10 3
%84 = OpConstant %18 4
%85 = OpConstant %10 5
%52 = OpTypeArray %50 %51
%53 = OpTypePointer Private %52
%46 = OpConstantNull %9
%47 = OpTypePointer Private %8
%48 = OpVariable %47 Private
%54 = OpVariable %53 Private
%4 = OpFunction %2 None %3
%5 = OpLabel
%28 = OpVariable %9 Function
%34 = OpVariable %11 Function
%36 = OpVariable %9 Function
%38 = OpVariable %11 Function
%44 = OpCopyObject %9 %36
OpStore %28 %33
OpStore %34 %35
%37 = OpLoad %8 %28
OpStore %36 %37
%39 = OpLoad %10 %34
OpStore %38 %39
%40 = OpFunctionCall %10 %15 %36 %38
%41 = OpLoad %10 %34
%42 = OpIAdd %10 %41 %40
OpStore %34 %42
OpReturn
OpFunctionEnd
%15 = OpFunction %10 None %12
%13 = OpFunctionParameter %9
%14 = OpFunctionParameter %11
%16 = OpLabel
%21 = OpAccessChain %20 %13 %17 %19
%43 = OpCopyObject %9 %13
%22 = OpLoad %6 %21
%23 = OpConvertFToS %10 %22
%24 = OpLoad %10 %14
%25 = OpIAdd %10 %23 %24
OpReturnValue %25
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_4;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
// Types:
// Ptr | Pointee | Storage class | GLSL for pointee | Ids of this type
// ----+---------+---------------+---------------------+------------------
// 9 | 8 | Function | struct(vec2, float) | 28, 36, 44, 13, 43
// 11 | 10 | Function | int | 34, 38, 14
// 20 | 6 | Function | float | -
// 99 | 6 | Private | float | -
// 53 | 52 | Private | mat2x2[10] | 54
// 47 | 8 | Private | struct(vec2, float) | 48
// 70 | 7 | Function | vec2 | -
// 71 | 59 | Function | mat2x2 | -
// Indices 0-5 are in ids 80-85
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
transformation_context.GetFactManager()->AddFactValueOfPointeeIsIrrelevant(
54);
// Check the case where the index type is not a 32-bit integer.
TransformationAccessChain invalid_index_example1(
101, 28, {29}, MakeInstructionDescriptor(42, spv::Op::OpReturn, 0));
// Since the index is not a 32-bit integer type but a 32-bit float type,
// ValidIndexComposite should return false and thus the transformation is not
// applicable.
ASSERT_FALSE(invalid_index_example1.IsApplicable(context.get(),
transformation_context));
// Bad: id is not fresh
ASSERT_FALSE(
TransformationAccessChain(
43, 43, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: pointer id does not exist
ASSERT_FALSE(
TransformationAccessChain(
100, 1000, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: pointer id is not a type
ASSERT_FALSE(
TransformationAccessChain(
100, 5, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: pointer id is not a pointer
ASSERT_FALSE(
TransformationAccessChain(
100, 23, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: index id does not exist
ASSERT_FALSE(
TransformationAccessChain(
100, 43, {1000}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: index id is not a constant and the pointer refers to a struct
ASSERT_FALSE(
TransformationAccessChain(
100, 43, {24}, MakeInstructionDescriptor(25, spv::Op::OpIAdd, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: too many indices
ASSERT_FALSE(TransformationAccessChain(
100, 43, {80, 80, 80},
MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: index id is out of bounds when accessing a struct
ASSERT_FALSE(
TransformationAccessChain(
100, 43, {83, 80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: attempt to insert before variable
ASSERT_FALSE(
TransformationAccessChain(
100, 34, {}, MakeInstructionDescriptor(36, spv::Op::OpVariable, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: OpTypeBool must be present in the module to clamp an index
ASSERT_FALSE(
TransformationAccessChain(
100, 36, {80, 81}, MakeInstructionDescriptor(37, spv::Op::OpStore, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: pointer not available
ASSERT_FALSE(TransformationAccessChain(
100, 43, {80},
MakeInstructionDescriptor(21, spv::Op::OpAccessChain, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: instruction descriptor does not identify anything
ASSERT_FALSE(
TransformationAccessChain(
100, 43, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 100))
.IsApplicable(context.get(), transformation_context));
#ifndef NDEBUG
// Bad: pointer is null
ASSERT_DEATH(
TransformationAccessChain(
100, 46, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context),
"Access chains should not be created from null/undefined pointers");
#endif
// Bad: pointer to result type does not exist
ASSERT_FALSE(
TransformationAccessChain(
100, 52, {0}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
{
TransformationAccessChain transformation(
100, 43, {80}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(100));
}
{
TransformationAccessChain transformation(
101, 28, {81}, MakeInstructionDescriptor(42, spv::Op::OpReturn, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(101));
}
{
TransformationAccessChain transformation(
102, 44, {}, MakeInstructionDescriptor(44, spv::Op::OpStore, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(103));
}
{
TransformationAccessChain transformation(
103, 13, {80},
MakeInstructionDescriptor(21, spv::Op::OpAccessChain, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(104));
}
{
TransformationAccessChain transformation(
104, 34, {}, MakeInstructionDescriptor(44, spv::Op::OpStore, 1));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(105));
}
{
TransformationAccessChain transformation(
105, 38, {}, MakeInstructionDescriptor(40, spv::Op::OpFunctionCall, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(106));
}
{
TransformationAccessChain transformation(
106, 14, {}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(107));
}
{
// Check the case where the access chain's base pointer has the irrelevant
// pointee fact; the resulting access chain should inherit this fact.
TransformationAccessChain transformation(
107, 54, {}, MakeInstructionDescriptor(24, spv::Op::OpLoad, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
ASSERT_TRUE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(54));
}
std::string after_transformation = R"(
OpCapability Shader
OpCapability VariablePointers
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %48 %54
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeVector %6 2
%50 = OpTypeMatrix %7 2
%70 = OpTypePointer Function %7
%71 = OpTypePointer Function %50
%8 = OpTypeStruct %7 %6
%9 = OpTypePointer Function %8
%10 = OpTypeInt 32 1
%11 = OpTypePointer Function %10
%12 = OpTypeFunction %10 %9 %11
%17 = OpConstant %10 0
%18 = OpTypeInt 32 0
%19 = OpConstant %18 0
%20 = OpTypePointer Function %6
%99 = OpTypePointer Private %6
%29 = OpConstant %6 0
%30 = OpConstant %6 1
%31 = OpConstantComposite %7 %29 %30
%32 = OpConstant %6 2
%33 = OpConstantComposite %8 %31 %32
%35 = OpConstant %10 10
%51 = OpConstant %18 10
%80 = OpConstant %18 0
%81 = OpConstant %10 1
%82 = OpConstant %18 2
%83 = OpConstant %10 3
%84 = OpConstant %18 4
%85 = OpConstant %10 5
%52 = OpTypeArray %50 %51
%53 = OpTypePointer Private %52
%46 = OpConstantNull %9
%47 = OpTypePointer Private %8
%48 = OpVariable %47 Private
%54 = OpVariable %53 Private
%4 = OpFunction %2 None %3
%5 = OpLabel
%28 = OpVariable %9 Function
%34 = OpVariable %11 Function
%36 = OpVariable %9 Function
%38 = OpVariable %11 Function
%44 = OpCopyObject %9 %36
%102 = OpAccessChain %9 %44
OpStore %28 %33
%104 = OpAccessChain %11 %34
OpStore %34 %35
%37 = OpLoad %8 %28
OpStore %36 %37
%39 = OpLoad %10 %34
OpStore %38 %39
%105 = OpAccessChain %11 %38
%40 = OpFunctionCall %10 %15 %36 %38
%41 = OpLoad %10 %34
%42 = OpIAdd %10 %41 %40
OpStore %34 %42
%101 = OpAccessChain %20 %28 %81
OpReturn
OpFunctionEnd
%15 = OpFunction %10 None %12
%13 = OpFunctionParameter %9
%14 = OpFunctionParameter %11
%16 = OpLabel
%103 = OpAccessChain %70 %13 %80
%21 = OpAccessChain %20 %13 %17 %19
%43 = OpCopyObject %9 %13
%22 = OpLoad %6 %21
%23 = OpConvertFToS %10 %22
%100 = OpAccessChain %70 %43 %80
%106 = OpAccessChain %11 %14
%107 = OpAccessChain %53 %54
%24 = OpLoad %10 %14
%25 = OpIAdd %10 %23 %24
OpReturnValue %25
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
TEST(TransformationAccessChainTest, StructIndexMustBeConstant) {
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 = OpTypeInt 32 1
%20 = OpUndef %6
%7 = OpTypeStruct %6 %6
%8 = OpTypePointer Function %7
%10 = OpConstant %6 0
%11 = OpConstant %6 2
%12 = OpTypePointer Function %6
%4 = OpFunction %2 None %3
%5 = OpLabel
%9 = OpVariable %8 Function
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_4;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
// Bad: %9 is a pointer to a struct, but %20 is not a constant.
ASSERT_FALSE(
TransformationAccessChain(
100, 9, {20}, MakeInstructionDescriptor(9, spv::Op::OpReturn, 0))
.IsApplicable(context.get(), transformation_context));
}
TEST(TransformationAccessChainTest, IsomorphicStructs) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %11 %12
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeStruct %6
%8 = OpTypePointer Private %7
%9 = OpTypeStruct %6
%10 = OpTypePointer Private %9
%11 = OpVariable %8 Private
%12 = OpVariable %10 Private
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_4;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
{
TransformationAccessChain transformation(
100, 11, {}, MakeInstructionDescriptor(5, spv::Op::OpReturn, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
}
{
TransformationAccessChain transformation(
101, 12, {}, MakeInstructionDescriptor(5, spv::Op::OpReturn, 0));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
}
std::string after_transformation = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %11 %12
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 310
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeStruct %6
%8 = OpTypePointer Private %7
%9 = OpTypeStruct %6
%10 = OpTypePointer Private %9
%11 = OpVariable %8 Private
%12 = OpVariable %10 Private
%4 = OpFunction %2 None %3
%5 = OpLabel
%100 = OpAccessChain %8 %11
%101 = OpAccessChain %10 %12
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
TEST(TransformationAccessChainTest, ClampingVariables) {
std::string shader = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main" %3
OpExecutionMode %2 OriginUpperLeft
OpSource ESSL 310
%4 = OpTypeVoid
%5 = OpTypeBool
%6 = OpTypeFunction %4
%7 = OpTypeInt 32 1
%8 = OpTypeVector %7 4
%9 = OpTypePointer Function %8
%10 = OpConstant %7 0
%11 = OpConstant %7 1
%12 = OpConstant %7 3
%13 = OpConstant %7 2
%14 = OpConstantComposite %8 %10 %11 %12 %13
%15 = OpTypePointer Function %7
%16 = OpTypeInt 32 0
%17 = OpConstant %16 1
%18 = OpConstant %16 3
%19 = OpTypeStruct %8
%20 = OpTypePointer Function %19
%21 = OpConstant %7 9
%22 = OpConstant %16 10
%23 = OpTypeArray %19 %22
%24 = OpTypePointer Function %23
%25 = OpTypeFloat 32
%26 = OpTypeVector %25 4
%27 = OpTypePointer Output %26
%3 = OpVariable %27 Output
%2 = OpFunction %4 None %6
%28 = OpLabel
%29 = OpVariable %9 Function
%30 = OpVariable %15 Function
%31 = OpVariable %15 Function
%32 = OpVariable %20 Function
%33 = OpVariable %15 Function
%34 = OpVariable %24 Function
OpStore %29 %14
OpStore %30 %10
%36 = OpLoad %7 %30
%38 = OpLoad %8 %29
%39 = OpCompositeConstruct %19 %38
%40 = OpLoad %7 %30
%42 = OpLoad %8 %29
%43 = OpCompositeConstruct %19 %42
%45 = OpLoad %7 %30
%46 = OpLoad %7 %33
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_4;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
// Bad: no ids given for clamping
ASSERT_FALSE(
TransformationAccessChain(
100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0))
.IsApplicable(context.get(), transformation_context));
// Bad: an id given for clamping is not fresh
ASSERT_FALSE(TransformationAccessChain(
100, 29, {17},
MakeInstructionDescriptor(36, spv::Op::OpLoad, 0),
{{46, 201}})
.IsApplicable(context.get(), transformation_context));
// Bad: an id given for clamping is not fresh
ASSERT_FALSE(TransformationAccessChain(
100, 29, {17},
MakeInstructionDescriptor(36, spv::Op::OpLoad, 0),
{{200, 46}})
.IsApplicable(context.get(), transformation_context));
// Bad: an id given for clamping is the same as the id for the access chain
ASSERT_FALSE(TransformationAccessChain(
100, 29, {17},
MakeInstructionDescriptor(36, spv::Op::OpLoad, 0),
{{100, 201}})
.IsApplicable(context.get(), transformation_context));
// Bad: the fresh ids given are not distinct
ASSERT_FALSE(TransformationAccessChain(
100, 29, {17},
MakeInstructionDescriptor(36, spv::Op::OpLoad, 0),
{{200, 200}})
.IsApplicable(context.get(), transformation_context));
// Bad: not enough ids given for clamping (2 pairs needed)
ASSERT_FALSE(TransformationAccessChain(
104, 34, {45, 10, 46},
MakeInstructionDescriptor(46, spv::Op::OpReturn, 0),
{{208, 209}, {209, 211}})
.IsApplicable(context.get(), transformation_context));
// Bad: the fresh ids given are not distinct
ASSERT_FALSE(TransformationAccessChain(
104, 34, {45, 10, 46},
MakeInstructionDescriptor(46, spv::Op::OpReturn, 0),
{{208, 209}, {209, 211}})
.IsApplicable(context.get(), transformation_context));
{
TransformationAccessChain transformation(
100, 29, {17}, MakeInstructionDescriptor(36, spv::Op::OpLoad, 0),
{{200, 201}});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
}
{
TransformationAccessChain transformation(
101, 29, {36}, MakeInstructionDescriptor(38, spv::Op::OpLoad, 0),
{{202, 203}});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
}
{
TransformationAccessChain transformation(
102, 32, {10, 40}, MakeInstructionDescriptor(42, spv::Op::OpLoad, 0),
{{204, 205}});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
}
{
TransformationAccessChain transformation(
103, 34, {11}, MakeInstructionDescriptor(45, spv::Op::OpLoad, 0),
{{206, 207}});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
}
{
TransformationAccessChain transformation(
104, 34, {45, 10, 46},
MakeInstructionDescriptor(46, spv::Op::OpReturn, 0),
{{208, 209}, {210, 211}});
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
context.get(), validator_options, kConsoleMessageConsumer));
}
std::string after_transformation = R"(
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %2 "main" %3
OpExecutionMode %2 OriginUpperLeft
OpSource ESSL 310
%4 = OpTypeVoid
%5 = OpTypeBool
%6 = OpTypeFunction %4
%7 = OpTypeInt 32 1
%8 = OpTypeVector %7 4
%9 = OpTypePointer Function %8
%10 = OpConstant %7 0
%11 = OpConstant %7 1
%12 = OpConstant %7 3
%13 = OpConstant %7 2
%14 = OpConstantComposite %8 %10 %11 %12 %13
%15 = OpTypePointer Function %7
%16 = OpTypeInt 32 0
%17 = OpConstant %16 1
%18 = OpConstant %16 3
%19 = OpTypeStruct %8
%20 = OpTypePointer Function %19
%21 = OpConstant %7 9
%22 = OpConstant %16 10
%23 = OpTypeArray %19 %22
%24 = OpTypePointer Function %23
%25 = OpTypeFloat 32
%26 = OpTypeVector %25 4
%27 = OpTypePointer Output %26
%3 = OpVariable %27 Output
%2 = OpFunction %4 None %6
%28 = OpLabel
%29 = OpVariable %9 Function
%30 = OpVariable %15 Function
%31 = OpVariable %15 Function
%32 = OpVariable %20 Function
%33 = OpVariable %15 Function
%34 = OpVariable %24 Function
OpStore %29 %14
OpStore %30 %10
%200 = OpULessThanEqual %5 %17 %18
%201 = OpSelect %16 %200 %17 %18
%100 = OpAccessChain %15 %29 %201
%36 = OpLoad %7 %30
%202 = OpULessThanEqual %5 %36 %12
%203 = OpSelect %7 %202 %36 %12
%101 = OpAccessChain %15 %29 %203
%38 = OpLoad %8 %29
%39 = OpCompositeConstruct %19 %38
%40 = OpLoad %7 %30
%204 = OpULessThanEqual %5 %40 %12
%205 = OpSelect %7 %204 %40 %12
%102 = OpAccessChain %15 %32 %10 %205
%42 = OpLoad %8 %29
%43 = OpCompositeConstruct %19 %42
%206 = OpULessThanEqual %5 %11 %21
%207 = OpSelect %7 %206 %11 %21
%103 = OpAccessChain %20 %34 %207
%45 = OpLoad %7 %30
%46 = OpLoad %7 %33
%208 = OpULessThanEqual %5 %45 %21
%209 = OpSelect %7 %208 %45 %21
%210 = OpULessThanEqual %5 %46 %12
%211 = OpSelect %7 %210 %46 %12
%104 = OpAccessChain %15 %34 %209 %10 %211
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
} // namespace
} // namespace fuzz
} // namespace spvtools