mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-26 13:20:05 +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.
1139 lines
40 KiB
C++
1139 lines
40 KiB
C++
// Copyright (c) 2020 Vasyl Teliman
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/fuzz/transformation_propagate_instruction_down.h"
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#include "gtest/gtest.h"
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#include "source/fuzz/counter_overflow_id_source.h"
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#include "source/fuzz/fuzzer_util.h"
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#include "test/fuzz/fuzz_test_util.h"
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namespace spvtools {
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namespace fuzz {
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namespace {
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TEST(TransformationPropagateInstructionDownTest, BasicTest) {
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std::string shader = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpConstant %6 1
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%12 = OpTypeBool
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%13 = OpConstantTrue %12
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%9 = OpTypePointer Function %6
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%4 = OpFunction %2 None %3
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; Has no instruction to propagate
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%5 = OpLabel
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%10 = OpVariable %9 Function
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%8 = OpCopyObject %6 %7
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OpStore %10 %8
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OpBranch %11
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; Unreachable block
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%100 = OpLabel
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%101 = OpCopyObject %6 %7
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OpBranch %11
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; Selection header
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;
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; One of acceptable successors has an OpPhi that uses propagated
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; instruction's id
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%11 = OpLabel
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%19 = OpCopyObject %6 %7
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OpSelectionMerge %18 None
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OpBranchConditional %13 %14 %18
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; %16 has no acceptable successors
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%14 = OpLabel
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%20 = OpPhi %6 %19 %11
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%15 = OpCopyObject %6 %7 ; dependency
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OpBranch %16
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%16 = OpLabel
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%17 = OpCopyObject %6 %15
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OpBranch %18
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; Can be applied
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%18 = OpLabel
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%21 = OpCopyObject %6 %7
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OpSelectionMerge %24 None
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OpBranchConditional %13 %22 %23
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%22 = OpLabel
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%29 = OpPhi %6 %7 %18
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OpStore %10 %21
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OpBranch %24
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%23 = OpLabel
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OpStore %10 %21
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OpBranch %24
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%24 = OpLabel
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OpStore %10 %21
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OpBranch %32
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; Can't replace all uses of the propagated instruction: %30 is
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; propagated into %27.
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%32 = OpLabel
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OpLoopMerge %28 %27 None
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OpBranchConditional %13 %26 %28
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%26 = OpLabel
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%25 = OpCopyObject %6 %7
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%30 = OpCopyObject %6 %25
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OpBranchConditional %13 %27 %28
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%27 = OpLabel
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OpBranch %32
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%28 = OpLabel
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%31 = OpPhi %6 %30 %26 %7 %32 ; Can't replace this use
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OpReturn
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OpFunctionEnd
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)";
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const auto env = SPV_ENV_UNIVERSAL_1_3;
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const auto consumer = nullptr;
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const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
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spvtools::ValidatorOptions validator_options;
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
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kConsoleMessageConsumer));
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TransformationContext transformation_context(
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MakeUnique<FactManager>(context.get()), validator_options);
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// Invalid block id.
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ASSERT_FALSE(TransformationPropagateInstructionDown(200, 200, {{}})
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.IsApplicable(context.get(), transformation_context));
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ASSERT_FALSE(TransformationPropagateInstructionDown(101, 200, {{}})
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.IsApplicable(context.get(), transformation_context));
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// The block is unreachable.
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ASSERT_FALSE(TransformationPropagateInstructionDown(100, 200, {{}})
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.IsApplicable(context.get(), transformation_context));
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// The block has no instruction to propagate.
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ASSERT_FALSE(TransformationPropagateInstructionDown(5, 200, {{{11, 201}}})
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.IsApplicable(context.get(), transformation_context));
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// The block has no acceptable successors.
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ASSERT_FALSE(TransformationPropagateInstructionDown(16, 200, {{{18, 201}}})
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.IsApplicable(context.get(), transformation_context));
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// One of acceptable successors has an OpPhi that uses propagated
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// instruction's id.
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ASSERT_FALSE(
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TransformationPropagateInstructionDown(11, 200, {{{14, 201}, {18, 202}}})
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.IsApplicable(context.get(), transformation_context));
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#ifndef NDEBUG
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// Not all fresh ids are provided.
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ASSERT_DEATH(
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TransformationPropagateInstructionDown(18, 200, {{{22, 201}, {202, 203}}})
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.IsApplicable(context.get(), transformation_context),
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"Bad attempt to query whether overflow ids are available.");
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#endif
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// Not all fresh ids are fresh.
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ASSERT_FALSE(TransformationPropagateInstructionDown(
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18, 18, {{{22, 201}, {23, 202}, {202, 203}}})
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.IsApplicable(context.get(), transformation_context));
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ASSERT_FALSE(TransformationPropagateInstructionDown(
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18, 200, {{{22, 22}, {23, 202}, {202, 203}}})
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.IsApplicable(context.get(), transformation_context));
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ASSERT_FALSE(TransformationPropagateInstructionDown(
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18, 18, {{{22, 22}, {23, 202}, {202, 203}}})
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.IsApplicable(context.get(), transformation_context));
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// Not all fresh ids are unique.
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ASSERT_FALSE(TransformationPropagateInstructionDown(
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18, 200, {{{22, 200}, {23, 202}, {202, 200}}})
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.IsApplicable(context.get(), transformation_context));
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ASSERT_FALSE(TransformationPropagateInstructionDown(
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18, 200, {{{22, 201}, {23, 202}, {202, 200}}})
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.IsApplicable(context.get(), transformation_context));
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ASSERT_FALSE(TransformationPropagateInstructionDown(
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18, 200, {{{22, 201}, {23, 201}, {202, 203}}})
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.IsApplicable(context.get(), transformation_context));
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// Can't replace all uses of the propagated instruction: %30 is propagated
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// into %27.
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ASSERT_FALSE(TransformationPropagateInstructionDown(26, 200, {{{27, 201}}})
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.IsApplicable(context.get(), transformation_context));
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{
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TransformationPropagateInstructionDown transformation(
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18, 200, {{{22, 201}, {23, 202}, {202, 203}}});
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ASSERT_TRUE(
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transformation.IsApplicable(context.get(), transformation_context));
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ApplyAndCheckFreshIds(transformation, context.get(),
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&transformation_context);
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
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context.get(), validator_options, kConsoleMessageConsumer));
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ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
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MakeDataDescriptor(201, {}), MakeDataDescriptor(202, {})));
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ASSERT_TRUE(transformation_context.GetFactManager()->IsSynonymous(
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MakeDataDescriptor(201, {}), MakeDataDescriptor(200, {})));
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}
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std::string after_transformation = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpConstant %6 1
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%12 = OpTypeBool
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%13 = OpConstantTrue %12
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%9 = OpTypePointer Function %6
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%4 = OpFunction %2 None %3
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; Has no instruction to propagate
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%5 = OpLabel
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%10 = OpVariable %9 Function
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%8 = OpCopyObject %6 %7
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OpStore %10 %8
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OpBranch %11
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; Unreachable block
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%100 = OpLabel
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%101 = OpCopyObject %6 %7
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OpBranch %11
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; Selection header
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;
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; One of acceptable successors has an OpPhi that uses propagated
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; instruction's id
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%11 = OpLabel
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%19 = OpCopyObject %6 %7
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OpSelectionMerge %18 None
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OpBranchConditional %13 %14 %18
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; %16 has no acceptable successors
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%14 = OpLabel
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%20 = OpPhi %6 %19 %11
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%15 = OpCopyObject %6 %7 ; dependency
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OpBranch %16
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%16 = OpLabel
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%17 = OpCopyObject %6 %15
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OpBranch %18
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; Can be applied
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%18 = OpLabel
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OpSelectionMerge %24 None
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OpBranchConditional %13 %22 %23
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%22 = OpLabel
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%29 = OpPhi %6 %7 %18
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%201 = OpCopyObject %6 %7
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OpStore %10 %201
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OpBranch %24
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%23 = OpLabel
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%202 = OpCopyObject %6 %7
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OpStore %10 %202
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OpBranch %24
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%24 = OpLabel
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%200 = OpPhi %6 %201 %22 %202 %23
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OpStore %10 %200
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OpBranch %32
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; Can't replace all uses of the propagated instruction: %30 is
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; propagated into %27.
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%32 = OpLabel
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OpLoopMerge %28 %27 None
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OpBranchConditional %13 %26 %28
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%26 = OpLabel
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%25 = OpCopyObject %6 %7
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%30 = OpCopyObject %6 %25
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OpBranchConditional %13 %27 %28
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%27 = OpLabel
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OpBranch %32
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%28 = OpLabel
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%31 = OpPhi %6 %30 %26 %7 %32 ; Can't replace this use
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OpReturn
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OpFunctionEnd
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)";
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ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
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}
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TEST(TransformationPropagateInstructionDownTest, CantCreateOpPhiTest) {
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std::string shader = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpConstant %6 1
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%12 = OpTypeBool
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%13 = OpConstantTrue %12
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%4 = OpFunction %2 None %3
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; %5 doesn't belong to any construct
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%5 = OpLabel
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%15 = OpCopyObject %6 %7
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OpBranch %16
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; The merge block (%19) is unreachable
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%16 = OpLabel
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%17 = OpCopyObject %6 %7
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OpSelectionMerge %19 None
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OpBranchConditional %13 %18 %18
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; %21 doesn't dominate the merge block - %20
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%18 = OpLabel
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OpSelectionMerge %20 None
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OpBranchConditional %13 %20 %21
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%21 = OpLabel
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%22 = OpCopyObject %6 %7
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OpBranch %20
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; The merge block (%24) is an acceptable successor of the propagated
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; instruction's block
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%20 = OpLabel
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%23 = OpCopyObject %6 %7
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OpSelectionMerge %24 None
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OpBranchConditional %13 %24 %30
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%30 = OpLabel
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OpBranch %24
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; One of the predecessors of the merge block is not dominated by any
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; successor of the propagated instruction's block
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%24 = OpLabel
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%26 = OpCopyObject %6 %7
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OpLoopMerge %29 %25 None
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OpBranch %25
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%25 = OpLabel
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OpBranchConditional %13 %24 %29
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%28 = OpLabel ; unreachable predecessor of %29
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OpBranch %29
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%29 = OpLabel
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OpReturn
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%19 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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const auto env = SPV_ENV_UNIVERSAL_1_3;
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const auto consumer = nullptr;
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const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
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spvtools::ValidatorOptions validator_options;
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
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kConsoleMessageConsumer));
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TransformationContext transformation_context(
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MakeUnique<FactManager>(context.get()), validator_options);
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TransformationPropagateInstructionDown transformations[] = {
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// %5 doesn't belong to any construct.
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{5, 200, {{{16, 201}}}},
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// The merge block (%19) is unreachable.
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{16, 200, {{{18, 202}}}},
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// %21 doesn't dominate the merge block - %20.
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{21, 200, {{{20, 203}}}},
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// The merge block (%24) is an acceptable successor of the propagated
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// instruction's block.
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{20, 200, {{{24, 204}, {30, 205}}}},
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// One of the predecessors of the merge block is not dominated by any
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// successor of the propagated instruction's block.
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{24, 200, {{{25, 206}}}},
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};
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for (const auto& transformation : transformations) {
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ASSERT_TRUE(
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transformation.IsApplicable(context.get(), transformation_context));
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ApplyAndCheckFreshIds(transformation, context.get(),
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&transformation_context);
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
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context.get(), validator_options, kConsoleMessageConsumer));
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}
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// No transformation has introduced an OpPhi instruction.
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ASSERT_FALSE(context->get_def_use_mgr()->GetDef(200));
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std::string after_transformation = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpConstant %6 1
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%12 = OpTypeBool
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%13 = OpConstantTrue %12
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%4 = OpFunction %2 None %3
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; %5 doesn't belong to any construct
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%5 = OpLabel
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OpBranch %16
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; The merge block (%19) is unreachable
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%16 = OpLabel
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%201 = OpCopyObject %6 %7
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OpSelectionMerge %19 None
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OpBranchConditional %13 %18 %18
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; %21 doesn't dominate the merge block - %20
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%18 = OpLabel
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%202 = OpCopyObject %6 %7
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OpSelectionMerge %20 None
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OpBranchConditional %13 %20 %21
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%21 = OpLabel
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OpBranch %20
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; The merge block (%24) is an acceptable successor of the propagated
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; instruction's block
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%20 = OpLabel
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%203 = OpCopyObject %6 %7
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OpSelectionMerge %24 None
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OpBranchConditional %13 %24 %30
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%30 = OpLabel
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%205 = OpCopyObject %6 %7
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OpBranch %24
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; One of the predecessors of the merge block is not dominated by any
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; successor of the propagated instruction's block
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%24 = OpLabel
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%204 = OpCopyObject %6 %7
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OpLoopMerge %29 %25 None
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OpBranch %25
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%25 = OpLabel
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%206 = OpCopyObject %6 %7
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OpBranchConditional %13 %24 %29
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%28 = OpLabel ; unreachable predecessor of %29
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OpBranch %29
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%29 = OpLabel
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OpReturn
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%19 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
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}
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TEST(TransformationPropagateInstructionDownTest, VariablePointersCapability) {
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std::string shader = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main"
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpConstant %6 1
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%12 = OpTypeBool
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%13 = OpConstantTrue %12
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%10 = OpTypePointer Workgroup %6
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%11 = OpVariable %10 Workgroup
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%18 = OpCopyObject %10 %11
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%14 = OpCopyObject %10 %11
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OpSelectionMerge %17 None
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OpBranchConditional %13 %15 %16
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%15 = OpLabel
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OpBranch %17
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%16 = OpLabel
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OpBranch %17
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%17 = OpLabel
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OpStore %18 %7
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OpReturn
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OpFunctionEnd
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)";
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const auto env = SPV_ENV_UNIVERSAL_1_3;
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const auto consumer = nullptr;
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const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
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spvtools::ValidatorOptions validator_options;
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
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kConsoleMessageConsumer));
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TransformationContext transformation_context(
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MakeUnique<FactManager>(context.get()), validator_options);
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{
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// Can propagate a pointer only if we don't have to create an OpPhi.
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TransformationPropagateInstructionDown transformation(
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5, 200, {{{15, 201}, {16, 202}}});
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ASSERT_TRUE(
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transformation.IsApplicable(context.get(), transformation_context));
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ApplyAndCheckFreshIds(transformation, context.get(),
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&transformation_context);
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ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
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context.get(), validator_options, kConsoleMessageConsumer));
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ASSERT_FALSE(context->get_def_use_mgr()->GetDef(200));
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}
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{
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// Can't propagate a pointer if there is no VariablePointersStorageBuffer
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// capability and we need to create an OpPhi.
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TransformationPropagateInstructionDown transformation(
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5, 200, {{{15, 203}, {16, 204}}});
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ASSERT_FALSE(context->get_feature_mgr()->HasCapability(
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SpvCapabilityVariablePointersStorageBuffer));
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ASSERT_FALSE(
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transformation.IsApplicable(context.get(), transformation_context));
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context->AddCapability(SpvCapabilityVariablePointers);
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ASSERT_TRUE(context->get_feature_mgr()->HasCapability(
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SpvCapabilityVariablePointersStorageBuffer));
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|
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
|