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// 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_local_variable.h"
#include "gtest/gtest.h"
#include "source/fuzz/fuzzer_util.h"
#include "test/fuzz/fuzz_test_util.h"
namespace spvtools {
namespace fuzz {
namespace {
TEST(TransformationAddLocalVariableTest, 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 = OpTypeStruct %6 %6
%8 = OpTypePointer Function %7
%10 = OpConstant %6 1
%11 = OpConstant %6 2
%12 = OpConstantComposite %7 %10 %11
%13 = OpTypeFloat 32
%14 = OpTypeInt 32 0
%15 = OpConstant %14 3
%16 = OpTypeArray %13 %15
%17 = OpTypeBool
%18 = OpTypeStruct %16 %7 %17
%19 = OpTypePointer Function %18
%21 = OpConstant %13 1
%22 = OpConstant %13 2
%23 = OpConstant %13 4
%24 = OpConstantComposite %16 %21 %22 %23
%25 = OpConstant %6 5
%26 = OpConstant %6 6
%27 = OpConstantComposite %7 %25 %26
%28 = OpConstantFalse %17
%29 = OpConstantComposite %18 %24 %27 %28
%30 = OpTypeVector %13 2
%31 = OpTypePointer Function %30
%33 = OpConstantComposite %30 %21 %21
%34 = OpTypeVector %17 3
%35 = OpTypePointer Function %34
%37 = OpConstantTrue %17
%38 = OpConstantComposite %34 %37 %28 %28
%39 = OpTypeVector %13 4
%40 = OpTypeMatrix %39 3
%41 = OpTypePointer Function %40
%43 = OpConstantComposite %39 %21 %22 %23 %21
%44 = OpConstantComposite %39 %22 %23 %21 %22
%45 = OpConstantComposite %39 %23 %21 %22 %23
%46 = OpConstantComposite %40 %43 %44 %45
%50 = OpTypePointer Function %14
%51 = OpConstantNull %14
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd
)";
const auto env = SPV_ENV_UNIVERSAL_1_4;
const auto consumer = nullptr;
const auto context = BuildModule(env, consumer, shader, kFuzzAssembleOption);
spvtools::ValidatorOptions validator_options;
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
// A few cases of inapplicable transformations:
// Id 4 is already in use
ASSERT_FALSE(TransformationAddLocalVariable(4, 50, 4, 51, true)
.IsApplicable(context.get(), transformation_context));
// Type mismatch between initializer and pointer
ASSERT_FALSE(TransformationAddLocalVariable(105, 46, 4, 51, true)
.IsApplicable(context.get(), transformation_context));
// Id 5 is not a function
ASSERT_FALSE(TransformationAddLocalVariable(105, 50, 5, 51, true)
.IsApplicable(context.get(), transformation_context));
// %105 = OpVariable %50 Function %51
{
TransformationAddLocalVariable transformation(105, 50, 4, 51, true);
ASSERT_EQ(nullptr, context->get_def_use_mgr()->GetDef(105));
ASSERT_EQ(nullptr, context->get_instr_block(105));
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
ASSERT_EQ(SpvOpVariable, context->get_def_use_mgr()->GetDef(105)->opcode());
ASSERT_EQ(5, context->get_instr_block(105)->id());
}
// %104 = OpVariable %41 Function %46
{
TransformationAddLocalVariable transformation(104, 41, 4, 46, false);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
}
// %103 = OpVariable %35 Function %38
{
TransformationAddLocalVariable transformation(103, 35, 4, 38, true);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
}
// %102 = OpVariable %31 Function %33
{
TransformationAddLocalVariable transformation(102, 31, 4, 33, false);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
}
// %101 = OpVariable %19 Function %29
{
TransformationAddLocalVariable transformation(101, 19, 4, 29, true);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
}
// %100 = OpVariable %8 Function %12
{
TransformationAddLocalVariable transformation(100, 8, 4, 12, false);
ASSERT_TRUE(
transformation.IsApplicable(context.get(), transformation_context));
ApplyAndCheckFreshIds(transformation, context.get(),
&transformation_context);
}
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(100));
ASSERT_TRUE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(101));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(102));
ASSERT_TRUE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(103));
ASSERT_FALSE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(104));
ASSERT_TRUE(
transformation_context.GetFactManager()->PointeeValueIsIrrelevant(105));
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 = OpTypeStruct %6 %6
%8 = OpTypePointer Function %7
%10 = OpConstant %6 1
%11 = OpConstant %6 2
%12 = OpConstantComposite %7 %10 %11
%13 = OpTypeFloat 32
%14 = OpTypeInt 32 0
%15 = OpConstant %14 3
%16 = OpTypeArray %13 %15
%17 = OpTypeBool
%18 = OpTypeStruct %16 %7 %17
%19 = OpTypePointer Function %18
%21 = OpConstant %13 1
%22 = OpConstant %13 2
%23 = OpConstant %13 4
%24 = OpConstantComposite %16 %21 %22 %23
%25 = OpConstant %6 5
%26 = OpConstant %6 6
%27 = OpConstantComposite %7 %25 %26
%28 = OpConstantFalse %17
%29 = OpConstantComposite %18 %24 %27 %28
%30 = OpTypeVector %13 2
%31 = OpTypePointer Function %30
%33 = OpConstantComposite %30 %21 %21
%34 = OpTypeVector %17 3
%35 = OpTypePointer Function %34
%37 = OpConstantTrue %17
%38 = OpConstantComposite %34 %37 %28 %28
%39 = OpTypeVector %13 4
%40 = OpTypeMatrix %39 3
%41 = OpTypePointer Function %40
%43 = OpConstantComposite %39 %21 %22 %23 %21
%44 = OpConstantComposite %39 %22 %23 %21 %22
%45 = OpConstantComposite %39 %23 %21 %22 %23
%46 = OpConstantComposite %40 %43 %44 %45
%50 = OpTypePointer Function %14
%51 = OpConstantNull %14
%4 = OpFunction %2 None %3
%5 = OpLabel
%100 = OpVariable %8 Function %12
%101 = OpVariable %19 Function %29
%102 = OpVariable %31 Function %33
%103 = OpVariable %35 Function %38
%104 = OpVariable %41 Function %46
%105 = OpVariable %50 Function %51
OpReturn
OpFunctionEnd
)";
ASSERT_TRUE(IsEqual(env, after_transformation, context.get()));
}
} // namespace
} // namespace fuzz
} // namespace spvtools