mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-22 11:40:05 +00:00
d35a78db57
Fixes #4960 * Switches to using enum classes with an underlying type to avoid undefined behaviour
1139 lines
40 KiB
C++
1139 lines
40 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_propagate_instruction_down.h"
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "source/fuzz/counter_overflow_id_source.h"
|
|
#include "source/fuzz/fuzzer_util.h"
|
|
#include "test/fuzz/fuzz_test_util.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
namespace {
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, BasicTest) {
|
|
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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%9 = OpTypePointer Function %6
|
|
%4 = OpFunction %2 None %3
|
|
|
|
; Has no instruction to propagate
|
|
%5 = OpLabel
|
|
%10 = OpVariable %9 Function
|
|
%8 = OpCopyObject %6 %7
|
|
OpStore %10 %8
|
|
OpBranch %11
|
|
|
|
; Unreachable block
|
|
%100 = OpLabel
|
|
%101 = OpCopyObject %6 %7
|
|
OpBranch %11
|
|
|
|
; Selection header
|
|
;
|
|
; One of acceptable successors has an OpPhi that uses propagated
|
|
; instruction's id
|
|
%11 = OpLabel
|
|
%19 = OpCopyObject %6 %7
|
|
OpSelectionMerge %18 None
|
|
OpBranchConditional %13 %14 %18
|
|
|
|
; %16 has no acceptable successors
|
|
%14 = OpLabel
|
|
%20 = OpPhi %6 %19 %11
|
|
%15 = OpCopyObject %6 %7 ; dependency
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
%17 = OpCopyObject %6 %15
|
|
OpBranch %18
|
|
|
|
; Can be applied
|
|
%18 = OpLabel
|
|
%21 = OpCopyObject %6 %7
|
|
OpSelectionMerge %24 None
|
|
OpBranchConditional %13 %22 %23
|
|
%22 = OpLabel
|
|
%29 = OpPhi %6 %7 %18
|
|
OpStore %10 %21
|
|
OpBranch %24
|
|
%23 = OpLabel
|
|
OpStore %10 %21
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
OpStore %10 %21
|
|
OpBranch %32
|
|
|
|
; Can't replace all uses of the propagated instruction: %30 is
|
|
; propagated into %27.
|
|
%32 = OpLabel
|
|
OpLoopMerge %28 %27 None
|
|
OpBranchConditional %13 %26 %28
|
|
%26 = OpLabel
|
|
%25 = OpCopyObject %6 %7
|
|
%30 = OpCopyObject %6 %25
|
|
OpBranchConditional %13 %27 %28
|
|
%27 = OpLabel
|
|
OpBranch %32
|
|
%28 = OpLabel
|
|
%31 = OpPhi %6 %30 %26 %7 %32 ; Can't replace this use
|
|
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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options);
|
|
|
|
// Invalid block id.
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(200, 200, {{}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(101, 200, {{}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// The block is unreachable.
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(100, 200, {{}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// The block has no instruction to propagate.
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(5, 200, {{{11, 201}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// The block has no acceptable successors.
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(16, 200, {{{18, 201}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// One of acceptable successors has an OpPhi that uses propagated
|
|
// instruction's id.
|
|
ASSERT_FALSE(
|
|
TransformationPropagateInstructionDown(11, 200, {{{14, 201}, {18, 202}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
#ifndef NDEBUG
|
|
// Not all fresh ids are provided.
|
|
ASSERT_DEATH(
|
|
TransformationPropagateInstructionDown(18, 200, {{{22, 201}, {202, 203}}})
|
|
.IsApplicable(context.get(), transformation_context),
|
|
"Bad attempt to query whether overflow ids are available.");
|
|
#endif
|
|
|
|
// Not all fresh ids are fresh.
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(
|
|
18, 18, {{{22, 201}, {23, 202}, {202, 203}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(
|
|
18, 200, {{{22, 22}, {23, 202}, {202, 203}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(
|
|
18, 18, {{{22, 22}, {23, 202}, {202, 203}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// Not all fresh ids are unique.
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(
|
|
18, 200, {{{22, 200}, {23, 202}, {202, 200}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(
|
|
18, 200, {{{22, 201}, {23, 202}, {202, 200}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(
|
|
18, 200, {{{22, 201}, {23, 201}, {202, 203}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// Can't replace all uses of the propagated instruction: %30 is propagated
|
|
// into %27.
|
|
ASSERT_FALSE(TransformationPropagateInstructionDown(26, 200, {{{27, 201}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
{
|
|
TransformationPropagateInstructionDown transformation(
|
|
18, 200, {{{22, 201}, {23, 202}, {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));
|
|
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(201, {}), MakeDataDescriptor(202, {})));
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(201, {}), MakeDataDescriptor(200, {})));
|
|
}
|
|
|
|
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
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeInt 32 1
|
|
%7 = OpConstant %6 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%9 = OpTypePointer Function %6
|
|
%4 = OpFunction %2 None %3
|
|
|
|
; Has no instruction to propagate
|
|
%5 = OpLabel
|
|
%10 = OpVariable %9 Function
|
|
%8 = OpCopyObject %6 %7
|
|
OpStore %10 %8
|
|
OpBranch %11
|
|
|
|
; Unreachable block
|
|
%100 = OpLabel
|
|
%101 = OpCopyObject %6 %7
|
|
OpBranch %11
|
|
|
|
; Selection header
|
|
;
|
|
; One of acceptable successors has an OpPhi that uses propagated
|
|
; instruction's id
|
|
%11 = OpLabel
|
|
%19 = OpCopyObject %6 %7
|
|
OpSelectionMerge %18 None
|
|
OpBranchConditional %13 %14 %18
|
|
|
|
; %16 has no acceptable successors
|
|
%14 = OpLabel
|
|
%20 = OpPhi %6 %19 %11
|
|
%15 = OpCopyObject %6 %7 ; dependency
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
%17 = OpCopyObject %6 %15
|
|
OpBranch %18
|
|
|
|
; Can be applied
|
|
%18 = OpLabel
|
|
OpSelectionMerge %24 None
|
|
OpBranchConditional %13 %22 %23
|
|
%22 = OpLabel
|
|
%29 = OpPhi %6 %7 %18
|
|
%201 = OpCopyObject %6 %7
|
|
OpStore %10 %201
|
|
OpBranch %24
|
|
%23 = OpLabel
|
|
%202 = OpCopyObject %6 %7
|
|
OpStore %10 %202
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
%200 = OpPhi %6 %201 %22 %202 %23
|
|
OpStore %10 %200
|
|
OpBranch %32
|
|
|
|
; Can't replace all uses of the propagated instruction: %30 is
|
|
; propagated into %27.
|
|
%32 = OpLabel
|
|
OpLoopMerge %28 %27 None
|
|
OpBranchConditional %13 %26 %28
|
|
%26 = OpLabel
|
|
%25 = OpCopyObject %6 %7
|
|
%30 = OpCopyObject %6 %25
|
|
OpBranchConditional %13 %27 %28
|
|
%27 = OpLabel
|
|
OpBranch %32
|
|
%28 = OpLabel
|
|
%31 = OpPhi %6 %30 %26 %7 %32 ; Can't replace this use
|
|
OpReturn
|
|
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, CantCreateOpPhiTest) {
|
|
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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
|
|
; %5 doesn't belong to any construct
|
|
%5 = OpLabel
|
|
%15 = OpCopyObject %6 %7
|
|
OpBranch %16
|
|
|
|
; The merge block (%19) is unreachable
|
|
%16 = OpLabel
|
|
%17 = OpCopyObject %6 %7
|
|
OpSelectionMerge %19 None
|
|
OpBranchConditional %13 %18 %18
|
|
|
|
; %21 doesn't dominate the merge block - %20
|
|
%18 = OpLabel
|
|
OpSelectionMerge %20 None
|
|
OpBranchConditional %13 %20 %21
|
|
%21 = OpLabel
|
|
%22 = OpCopyObject %6 %7
|
|
OpBranch %20
|
|
|
|
; The merge block (%24) is an acceptable successor of the propagated
|
|
; instruction's block
|
|
%20 = OpLabel
|
|
%23 = OpCopyObject %6 %7
|
|
OpSelectionMerge %24 None
|
|
OpBranchConditional %13 %24 %30
|
|
%30 = OpLabel
|
|
OpBranch %24
|
|
|
|
; One of the predecessors of the merge block is not dominated by any
|
|
; successor of the propagated instruction's block
|
|
%24 = OpLabel
|
|
%26 = OpCopyObject %6 %7
|
|
OpLoopMerge %29 %25 None
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
OpBranchConditional %13 %24 %29
|
|
%28 = OpLabel ; unreachable predecessor of %29
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
OpReturn
|
|
|
|
%19 = 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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options);
|
|
|
|
TransformationPropagateInstructionDown transformations[] = {
|
|
// %5 doesn't belong to any construct.
|
|
{5, 200, {{{16, 201}}}},
|
|
|
|
// The merge block (%19) is unreachable.
|
|
{16, 200, {{{18, 202}}}},
|
|
|
|
// %21 doesn't dominate the merge block - %20.
|
|
{21, 200, {{{20, 203}}}},
|
|
|
|
// The merge block (%24) is an acceptable successor of the propagated
|
|
// instruction's block.
|
|
{20, 200, {{{24, 204}, {30, 205}}}},
|
|
|
|
// One of the predecessors of the merge block is not dominated by any
|
|
// successor of the propagated instruction's block.
|
|
{24, 200, {{{25, 206}}}},
|
|
};
|
|
|
|
for (const auto& transformation : transformations) {
|
|
ASSERT_TRUE(
|
|
transformation.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation, context.get(),
|
|
&transformation_context);
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
|
|
context.get(), validator_options, kConsoleMessageConsumer));
|
|
}
|
|
|
|
// No transformation has introduced an OpPhi instruction.
|
|
ASSERT_FALSE(context->get_def_use_mgr()->GetDef(200));
|
|
|
|
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
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeInt 32 1
|
|
%7 = OpConstant %6 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
|
|
; %5 doesn't belong to any construct
|
|
%5 = OpLabel
|
|
OpBranch %16
|
|
|
|
; The merge block (%19) is unreachable
|
|
%16 = OpLabel
|
|
%201 = OpCopyObject %6 %7
|
|
OpSelectionMerge %19 None
|
|
OpBranchConditional %13 %18 %18
|
|
|
|
; %21 doesn't dominate the merge block - %20
|
|
%18 = OpLabel
|
|
%202 = OpCopyObject %6 %7
|
|
OpSelectionMerge %20 None
|
|
OpBranchConditional %13 %20 %21
|
|
%21 = OpLabel
|
|
OpBranch %20
|
|
|
|
; The merge block (%24) is an acceptable successor of the propagated
|
|
; instruction's block
|
|
%20 = OpLabel
|
|
%203 = OpCopyObject %6 %7
|
|
OpSelectionMerge %24 None
|
|
OpBranchConditional %13 %24 %30
|
|
%30 = OpLabel
|
|
%205 = OpCopyObject %6 %7
|
|
OpBranch %24
|
|
|
|
; One of the predecessors of the merge block is not dominated by any
|
|
; successor of the propagated instruction's block
|
|
%24 = OpLabel
|
|
%204 = OpCopyObject %6 %7
|
|
OpLoopMerge %29 %25 None
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
%206 = OpCopyObject %6 %7
|
|
OpBranchConditional %13 %24 %29
|
|
%28 = OpLabel ; unreachable predecessor of %29
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
OpReturn
|
|
|
|
%19 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, VariablePointersCapability) {
|
|
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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%10 = OpTypePointer Workgroup %6
|
|
%11 = OpVariable %10 Workgroup
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%18 = OpCopyObject %10 %11
|
|
%14 = OpCopyObject %10 %11
|
|
OpSelectionMerge %17 None
|
|
OpBranchConditional %13 %15 %16
|
|
%15 = OpLabel
|
|
OpBranch %17
|
|
%16 = OpLabel
|
|
OpBranch %17
|
|
%17 = OpLabel
|
|
OpStore %18 %7
|
|
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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options);
|
|
|
|
{
|
|
// Can propagate a pointer only if we don't have to create an OpPhi.
|
|
TransformationPropagateInstructionDown transformation(
|
|
5, 200, {{{15, 201}, {16, 202}}});
|
|
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(context->get_def_use_mgr()->GetDef(200));
|
|
}
|
|
{
|
|
// Can't propagate a pointer if there is no VariablePointersStorageBuffer
|
|
// capability and we need to create an OpPhi.
|
|
TransformationPropagateInstructionDown transformation(
|
|
5, 200, {{{15, 203}, {16, 204}}});
|
|
ASSERT_FALSE(context->get_feature_mgr()->HasCapability(
|
|
spv::Capability::VariablePointersStorageBuffer));
|
|
ASSERT_FALSE(
|
|
transformation.IsApplicable(context.get(), transformation_context));
|
|
|
|
context->AddCapability(spv::Capability::VariablePointers);
|
|
ASSERT_TRUE(context->get_feature_mgr()->HasCapability(
|
|
spv::Capability::VariablePointersStorageBuffer));
|
|
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
|
|
OpCapability VariablePointers
|
|
%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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%10 = OpTypePointer Workgroup %6
|
|
%11 = OpVariable %10 Workgroup
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpSelectionMerge %17 None
|
|
OpBranchConditional %13 %15 %16
|
|
%15 = OpLabel
|
|
%203 = OpCopyObject %10 %11
|
|
%201 = OpCopyObject %10 %11
|
|
OpBranch %17
|
|
%16 = OpLabel
|
|
%204 = OpCopyObject %10 %11
|
|
%202 = OpCopyObject %10 %11
|
|
OpBranch %17
|
|
%17 = OpLabel
|
|
%200 = OpPhi %10 %203 %15 %204 %16
|
|
OpStore %200 %7
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, UseOverflowIdsTest) {
|
|
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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%10 = OpTypePointer Private %6
|
|
%11 = OpVariable %10 Private
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%20 = OpCopyObject %6 %7
|
|
OpSelectionMerge %23 None
|
|
OpBranchConditional %13 %21 %22
|
|
%21 = OpLabel
|
|
OpStore %11 %20
|
|
OpBranch %23
|
|
%22 = OpLabel
|
|
OpStore %11 %20
|
|
OpBranch %23
|
|
%23 = OpLabel
|
|
OpStore %11 %20
|
|
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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options,
|
|
MakeUnique<CounterOverflowIdSource>(300));
|
|
|
|
TransformationPropagateInstructionDown transformation(5, 200, {{{21, 201}}});
|
|
ASSERT_TRUE(
|
|
transformation.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation, context.get(), &transformation_context,
|
|
{300});
|
|
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"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeInt 32 1
|
|
%7 = OpConstant %6 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%10 = OpTypePointer Private %6
|
|
%11 = OpVariable %10 Private
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpSelectionMerge %23 None
|
|
OpBranchConditional %13 %21 %22
|
|
%21 = OpLabel
|
|
%201 = OpCopyObject %6 %7
|
|
OpStore %11 %201
|
|
OpBranch %23
|
|
%22 = OpLabel
|
|
%300 = OpCopyObject %6 %7
|
|
OpStore %11 %300
|
|
OpBranch %23
|
|
%23 = OpLabel
|
|
%200 = OpPhi %6 %201 %21 %300 %22
|
|
OpStore %11 %200
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, TestCreatedFacts) {
|
|
std::string shader = R"(
|
|
OpCapability VariablePointers
|
|
%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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%10 = OpTypePointer Private %6
|
|
%11 = OpVariable %10 Private
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%20 = OpCopyObject %6 %7
|
|
%24 = OpCopyObject %6 %7 ; Irrelevant id
|
|
%25 = OpCopyObject %10 %11 ; Pointee is irrelevant
|
|
OpSelectionMerge %23 None
|
|
OpBranchConditional %13 %21 %22
|
|
%21 = OpLabel
|
|
OpStore %25 %20
|
|
OpBranch %23
|
|
%22 = OpLabel ; Dead block
|
|
OpStore %25 %20
|
|
OpBranch %23
|
|
%23 = OpLabel
|
|
OpStore %25 %20
|
|
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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options);
|
|
|
|
transformation_context.GetFactManager()->AddFactBlockIsDead(22);
|
|
transformation_context.GetFactManager()->AddFactIdIsIrrelevant(24);
|
|
transformation_context.GetFactManager()->AddFactValueOfPointeeIsIrrelevant(
|
|
25);
|
|
|
|
{
|
|
// Propagate pointer with PointeeIsIrrelevant fact.
|
|
TransformationPropagateInstructionDown transformation(
|
|
5, 200, {{{21, 201}, {22, 202}}});
|
|
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()->IdIsIrrelevant(201));
|
|
ASSERT_FALSE(transformation_context.GetFactManager()->IdIsIrrelevant(202));
|
|
ASSERT_FALSE(transformation_context.GetFactManager()->IdIsIrrelevant(200));
|
|
|
|
ASSERT_TRUE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(201));
|
|
ASSERT_TRUE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(202));
|
|
ASSERT_TRUE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(200));
|
|
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(201, {}), MakeDataDescriptor(202, {})));
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(201, {}), MakeDataDescriptor(200, {})));
|
|
}
|
|
{
|
|
// Propagate an irrelevant id.
|
|
TransformationPropagateInstructionDown transformation(
|
|
5, 203, {{{21, 204}, {22, 205}}});
|
|
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()->IdIsIrrelevant(203));
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IdIsIrrelevant(204));
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IdIsIrrelevant(205));
|
|
|
|
ASSERT_FALSE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(203));
|
|
ASSERT_FALSE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(204));
|
|
ASSERT_FALSE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(205));
|
|
|
|
ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(204, {}), MakeDataDescriptor(205, {})));
|
|
ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(204, {}), MakeDataDescriptor(203, {})));
|
|
}
|
|
{
|
|
// Propagate a regular id.
|
|
TransformationPropagateInstructionDown transformation(
|
|
5, 206, {{{21, 207}, {22, 208}}});
|
|
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()->IdIsIrrelevant(206));
|
|
ASSERT_FALSE(transformation_context.GetFactManager()->IdIsIrrelevant(207));
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IdIsIrrelevant(208));
|
|
|
|
ASSERT_FALSE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(206));
|
|
ASSERT_FALSE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(207));
|
|
ASSERT_FALSE(
|
|
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(208));
|
|
|
|
ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(206, {}), MakeDataDescriptor(207, {})));
|
|
ASSERT_FALSE(transformation_context.GetFactManager()->IsSynonymous(
|
|
MakeDataDescriptor(206, {}), MakeDataDescriptor(208, {})));
|
|
}
|
|
|
|
std::string after_transformation = R"(
|
|
OpCapability VariablePointers
|
|
%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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%10 = OpTypePointer Private %6
|
|
%11 = OpVariable %10 Private
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpSelectionMerge %23 None
|
|
OpBranchConditional %13 %21 %22
|
|
%21 = OpLabel
|
|
%207 = OpCopyObject %6 %7
|
|
%204 = OpCopyObject %6 %7 ; Irrelevant id
|
|
%201 = OpCopyObject %10 %11 ; Pointee is irrelevant
|
|
OpStore %201 %207
|
|
OpBranch %23
|
|
%22 = OpLabel ; Dead block
|
|
%208 = OpCopyObject %6 %7
|
|
%205 = OpCopyObject %6 %7 ; Irrelevant id
|
|
%202 = OpCopyObject %10 %11 ; Pointee is irrelevant
|
|
OpStore %202 %208
|
|
OpBranch %23
|
|
%23 = OpLabel
|
|
%206 = OpPhi %6 %207 %21 %208 %22
|
|
%203 = OpPhi %6 %204 %21 %205 %22 ; Irrelevant id
|
|
%200 = OpPhi %10 %201 %21 %202 %22 ; Pointee is irrelevant
|
|
OpStore %200 %206
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, TestLoops1) {
|
|
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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpBranch %20
|
|
|
|
%20 = OpLabel
|
|
OpLoopMerge %26 %25 None
|
|
OpBranch %21
|
|
|
|
%21 = OpLabel
|
|
%22 = OpCopyObject %6 %7
|
|
%31 = OpCopyObject %6 %7
|
|
OpSelectionMerge %35 None
|
|
OpBranchConditional %13 %23 %24
|
|
|
|
%23 = OpLabel
|
|
%27 = OpCopyObject %6 %22
|
|
%32 = OpCopyObject %6 %31
|
|
OpBranch %26
|
|
%24 = OpLabel
|
|
%28 = OpCopyObject %6 %22
|
|
%33 = OpCopyObject %6 %31
|
|
OpBranchConditional %13 %26 %25
|
|
|
|
%35 = OpLabel
|
|
OpBranch %25
|
|
|
|
%25 = OpLabel
|
|
%29 = OpCopyObject %6 %22
|
|
%34 = OpCopyObject %6 %31
|
|
OpBranch %20
|
|
%26 = OpLabel
|
|
%30 = OpCopyObject %6 %22
|
|
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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options);
|
|
|
|
{
|
|
TransformationPropagateInstructionDown transformation(
|
|
21, 200, {{{23, 201}, {24, 202}}});
|
|
ASSERT_TRUE(
|
|
transformation.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation, context.get(),
|
|
&transformation_context);
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
|
|
context.get(), validator_options, kConsoleMessageConsumer));
|
|
}
|
|
|
|
// Can't replace usage of %22 in %26.
|
|
ASSERT_FALSE(
|
|
TransformationPropagateInstructionDown(21, 200, {{{23, 201}, {24, 202}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
std::string after_transformation = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeInt 32 1
|
|
%7 = OpConstant %6 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpBranch %20
|
|
|
|
%20 = OpLabel
|
|
OpLoopMerge %26 %25 None
|
|
OpBranch %21
|
|
|
|
%21 = OpLabel
|
|
%22 = OpCopyObject %6 %7
|
|
OpSelectionMerge %35 None
|
|
OpBranchConditional %13 %23 %24
|
|
%23 = OpLabel
|
|
%201 = OpCopyObject %6 %7
|
|
%27 = OpCopyObject %6 %22
|
|
%32 = OpCopyObject %6 %201
|
|
OpBranch %26
|
|
%24 = OpLabel
|
|
%202 = OpCopyObject %6 %7
|
|
%28 = OpCopyObject %6 %22
|
|
%33 = OpCopyObject %6 %202
|
|
OpBranchConditional %13 %26 %25
|
|
|
|
%35 = OpLabel
|
|
OpBranch %25
|
|
|
|
%25 = OpLabel
|
|
%29 = OpCopyObject %6 %22
|
|
%34 = OpCopyObject %6 %202
|
|
OpBranch %20
|
|
%26 = OpLabel
|
|
%30 = OpCopyObject %6 %22
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, TestLoops2) {
|
|
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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpBranch %20
|
|
|
|
%20 = OpLabel
|
|
%23 = OpPhi %6 %7 %5 %24 %21
|
|
OpLoopMerge %22 %21 None
|
|
OpBranch %21
|
|
|
|
%21 = OpLabel
|
|
%24 = OpCopyObject %6 %23
|
|
%25 = OpCopyObject %6 %7
|
|
OpBranchConditional %13 %22 %20
|
|
|
|
%22 = 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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options);
|
|
|
|
{
|
|
// Can propagate %25 from %21 into %20.
|
|
TransformationPropagateInstructionDown transformation(
|
|
21, 200, {{{20, 201}, {22, 202}}});
|
|
ASSERT_TRUE(
|
|
transformation.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation, context.get(),
|
|
&transformation_context);
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
|
|
context.get(), validator_options, kConsoleMessageConsumer));
|
|
}
|
|
{
|
|
// Can propagate %201 from %20 into %21.
|
|
TransformationPropagateInstructionDown transformation(20, 200,
|
|
{{{21, 203}}});
|
|
ASSERT_TRUE(
|
|
transformation.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation, context.get(),
|
|
&transformation_context);
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
|
|
context.get(), validator_options, kConsoleMessageConsumer));
|
|
}
|
|
|
|
// Can't propagate %24 from %21 into %20.
|
|
ASSERT_FALSE(
|
|
TransformationPropagateInstructionDown(21, 200, {{{20, 204}, {22, 205}}})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
std::string after_transformation = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeInt 32 1
|
|
%7 = OpConstant %6 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpBranch %20
|
|
|
|
%20 = OpLabel
|
|
%23 = OpPhi %6 %7 %5 %24 %21
|
|
OpLoopMerge %22 %21 None
|
|
OpBranch %21
|
|
|
|
%21 = OpLabel
|
|
%203 = OpCopyObject %6 %7
|
|
%24 = OpCopyObject %6 %23
|
|
OpBranchConditional %13 %22 %20
|
|
|
|
%22 = OpLabel
|
|
%200 = OpPhi %6 %203 %21
|
|
%202 = OpCopyObject %6 %7
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
TEST(TransformationPropagateInstructionDownTest, TestLoops3) {
|
|
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 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpBranch %20
|
|
|
|
%20 = OpLabel
|
|
%27 = OpPhi %6 %7 %5 %26 %20
|
|
%25 = OpCopyObject %6 %7
|
|
%26 = OpCopyObject %6 %7
|
|
OpLoopMerge %22 %20 None
|
|
OpBranchConditional %13 %20 %22
|
|
|
|
%22 = 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;
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
TransformationContext transformation_context(
|
|
MakeUnique<FactManager>(context.get()), validator_options);
|
|
|
|
{
|
|
// Propagate %25 into %20 and %22. Not that we are skipping %26 since not
|
|
// all of its users are in different blocks (%27).h
|
|
TransformationPropagateInstructionDown transformation(
|
|
20, 200, {{{20, 201}, {22, 202}}});
|
|
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"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 310
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeInt 32 1
|
|
%7 = OpConstant %6 1
|
|
%12 = OpTypeBool
|
|
%13 = OpConstantTrue %12
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpBranch %20
|
|
|
|
%20 = OpLabel
|
|
%27 = OpPhi %6 %7 %5 %26 %20
|
|
%201 = OpCopyObject %6 %7
|
|
%26 = OpCopyObject %6 %7
|
|
OpLoopMerge %22 %20 None
|
|
OpBranchConditional %13 %20 %22
|
|
|
|
%22 = OpLabel
|
|
%202 = OpCopyObject %6 %7
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|