mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-29 06:21:06 +00:00
502e982956
This fixes a problem where TransformationInlineFunction could lead to distinct instructions having identical unique ids. It adds a validity check to detect this problem in general. Fixes #3911.
299 lines
10 KiB
C++
299 lines
10 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_add_loop_preheader.h"
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "source/fuzz/fuzzer_util.h"
|
|
#include "test/fuzz/fuzz_test_util.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
namespace {
|
|
|
|
TEST(TransformationAddLoopPreheaderTest, SimpleTest) {
|
|
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
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeBool
|
|
%7 = OpConstantFalse %6
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %7 %8 %9
|
|
%8 = OpLabel
|
|
OpBranch %10
|
|
%9 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpLoopMerge %12 %11 None
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranchConditional %7 %10 %12
|
|
%12 = OpLabel
|
|
OpLoopMerge %14 %13 None
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
OpBranchConditional %7 %14 %12
|
|
%15 = OpLabel
|
|
OpLoopMerge %17 %16 None
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpBranchConditional %7 %15 %17
|
|
%17 = OpLabel
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const auto env = SPV_ENV_UNIVERSAL_1_5;
|
|
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_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
|
|
// %9 is not a loop header
|
|
ASSERT_FALSE(TransformationAddLoopPreheader(9, 15, {}).IsApplicable(
|
|
context.get(), transformation_context));
|
|
|
|
// The id %12 is not fresh
|
|
ASSERT_FALSE(TransformationAddLoopPreheader(10, 12, {})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// Loop header %15 is not reachable (the only predecessor is the back-edge
|
|
// block)
|
|
ASSERT_FALSE(TransformationAddLoopPreheader(15, 100, {})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
auto transformation1 = TransformationAddLoopPreheader(10, 20, {});
|
|
ASSERT_TRUE(
|
|
transformation1.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation1, context.get(),
|
|
&transformation_context);
|
|
|
|
auto transformation2 = TransformationAddLoopPreheader(12, 21, {});
|
|
ASSERT_TRUE(
|
|
transformation2.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation2, context.get(),
|
|
&transformation_context);
|
|
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
|
|
std::string after_transformations = 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
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeBool
|
|
%7 = OpConstantFalse %6
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpSelectionMerge %20 None
|
|
OpBranchConditional %7 %8 %9
|
|
%8 = OpLabel
|
|
OpBranch %20
|
|
%9 = OpLabel
|
|
OpBranch %20
|
|
%20 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpLoopMerge %21 %11 None
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranchConditional %7 %10 %21
|
|
%21 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
OpLoopMerge %14 %13 None
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
OpBranchConditional %7 %14 %12
|
|
%15 = OpLabel
|
|
OpLoopMerge %17 %16 None
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpBranchConditional %7 %15 %17
|
|
%17 = OpLabel
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformations, context.get()));
|
|
}
|
|
|
|
TEST(TransformationAddLoopPreheaderTest, OpPhi) {
|
|
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
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeBool
|
|
%7 = OpConstantFalse %6
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%20 = OpCopyObject %6 %7
|
|
OpBranch %8
|
|
%8 = OpLabel
|
|
%31 = OpPhi %6 %20 %5 %21 %9
|
|
OpLoopMerge %10 %9 None
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
%21 = OpCopyObject %6 %7
|
|
OpBranchConditional %7 %8 %10
|
|
%10 = OpLabel
|
|
OpSelectionMerge %13 None
|
|
OpBranchConditional %7 %11 %12
|
|
%11 = OpLabel
|
|
%22 = OpCopyObject %6 %7
|
|
OpBranch %13
|
|
%12 = OpLabel
|
|
%23 = OpCopyObject %6 %7
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
%32 = OpPhi %6 %22 %11 %23 %12 %24 %14
|
|
%33 = OpPhi %6 %7 %11 %7 %12 %24 %14
|
|
OpLoopMerge %15 %14 None
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
%24 = OpCopyObject %6 %7
|
|
OpBranchConditional %7 %13 %15
|
|
%15 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const auto env = SPV_ENV_UNIVERSAL_1_5;
|
|
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_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
|
|
auto transformation1 = TransformationAddLoopPreheader(8, 40, {});
|
|
ASSERT_TRUE(
|
|
transformation1.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation1, context.get(),
|
|
&transformation_context);
|
|
|
|
// Not enough ids for the OpPhi instructions are given
|
|
ASSERT_FALSE(TransformationAddLoopPreheader(13, 41, {})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// Not enough ids for the OpPhi instructions are given
|
|
ASSERT_FALSE(TransformationAddLoopPreheader(13, 41, {42})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// One of the ids is not fresh
|
|
ASSERT_FALSE(TransformationAddLoopPreheader(13, 41, {31, 42})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
// One of the ids is repeated
|
|
ASSERT_FALSE(TransformationAddLoopPreheader(13, 41, {41, 42})
|
|
.IsApplicable(context.get(), transformation_context));
|
|
|
|
auto transformation2 = TransformationAddLoopPreheader(13, 41, {42, 43});
|
|
ASSERT_TRUE(
|
|
transformation2.IsApplicable(context.get(), transformation_context));
|
|
ApplyAndCheckFreshIds(transformation2, context.get(),
|
|
&transformation_context);
|
|
|
|
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
|
|
kConsoleMessageConsumer));
|
|
|
|
std::string after_transformations = 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
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeBool
|
|
%7 = OpConstantFalse %6
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%20 = OpCopyObject %6 %7
|
|
OpBranch %40
|
|
%40 = OpLabel
|
|
OpBranch %8
|
|
%8 = OpLabel
|
|
%31 = OpPhi %6 %20 %40 %21 %9
|
|
OpLoopMerge %10 %9 None
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
%21 = OpCopyObject %6 %7
|
|
OpBranchConditional %7 %8 %10
|
|
%10 = OpLabel
|
|
OpSelectionMerge %41 None
|
|
OpBranchConditional %7 %11 %12
|
|
%11 = OpLabel
|
|
%22 = OpCopyObject %6 %7
|
|
OpBranch %41
|
|
%12 = OpLabel
|
|
%23 = OpCopyObject %6 %7
|
|
OpBranch %41
|
|
%41 = OpLabel
|
|
%42 = OpPhi %6 %22 %11 %23 %12
|
|
%43 = OpPhi %6 %7 %11 %7 %12
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
%32 = OpPhi %6 %42 %41 %24 %14
|
|
%33 = OpPhi %6 %43 %41 %24 %14
|
|
OpLoopMerge %15 %14 None
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
%24 = OpCopyObject %6 %7
|
|
OpBranchConditional %7 %13 %15
|
|
%15 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
ASSERT_TRUE(IsEqual(env, after_transformations, context.get()));
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|