a6eeea35cb
Bug: v8:9247 TBR=bmeurer@chromium.org,neis@chromium.org NOPRESUBMIT=true Change-Id: Ia1e49d1aac09c4ff9e05d58fab9d08dd71198878 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621931 Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#61682}
454 lines
15 KiB
C++
454 lines
15 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_CCTEST_COMPILER_CODEGEN_TESTER_H_
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#define V8_CCTEST_COMPILER_CODEGEN_TESTER_H_
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#include "src/codegen/optimized-compilation-info.h"
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#include "src/compiler/backend/instruction-selector.h"
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#include "src/compiler/pipeline.h"
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#include "src/compiler/raw-machine-assembler.h"
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#include "src/simulator.h"
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#include "test/cctest/cctest.h"
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#include "test/cctest/compiler/call-tester.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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template <typename ReturnType>
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class RawMachineAssemblerTester : public HandleAndZoneScope,
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public CallHelper<ReturnType>,
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public RawMachineAssembler {
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public:
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template <typename... ParamMachTypes>
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explicit RawMachineAssemblerTester(ParamMachTypes... p)
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: HandleAndZoneScope(),
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CallHelper<ReturnType>(
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main_isolate(),
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CSignature::New(main_zone(), MachineTypeForC<ReturnType>(), p...)),
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RawMachineAssembler(
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main_isolate(), new (main_zone()) Graph(main_zone()),
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Linkage::GetSimplifiedCDescriptor(
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main_zone(),
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CSignature::New(main_zone(), MachineTypeForC<ReturnType>(),
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p...),
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true),
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MachineType::PointerRepresentation(),
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InstructionSelector::SupportedMachineOperatorFlags(),
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InstructionSelector::AlignmentRequirements()) {}
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template <typename... ParamMachTypes>
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RawMachineAssemblerTester(Code::Kind kind, ParamMachTypes... p)
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: HandleAndZoneScope(),
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CallHelper<ReturnType>(
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main_isolate(),
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CSignature::New(main_zone(), MachineTypeForC<ReturnType>(), p...)),
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RawMachineAssembler(
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main_isolate(), new (main_zone()) Graph(main_zone()),
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Linkage::GetSimplifiedCDescriptor(
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main_zone(),
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CSignature::New(main_zone(), MachineTypeForC<ReturnType>(),
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p...),
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true),
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MachineType::PointerRepresentation(),
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InstructionSelector::SupportedMachineOperatorFlags(),
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InstructionSelector::AlignmentRequirements()),
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kind_(kind) {}
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~RawMachineAssemblerTester() override = default;
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void CheckNumber(double expected, Object number) {
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CHECK(this->isolate()->factory()->NewNumber(expected)->SameValue(number));
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}
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void CheckString(const char* expected, Object string) {
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CHECK(
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this->isolate()->factory()->InternalizeUtf8String(expected)->SameValue(
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string));
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}
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void GenerateCode() { Generate(); }
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Handle<Code> GetCode() {
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Generate();
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return code_.ToHandleChecked();
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}
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protected:
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Address Generate() override {
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if (code_.is_null()) {
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Schedule* schedule = this->Export();
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auto call_descriptor = this->call_descriptor();
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Graph* graph = this->graph();
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OptimizedCompilationInfo info(ArrayVector("testing"), main_zone(), kind_);
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code_ = Pipeline::GenerateCodeForTesting(
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&info, main_isolate(), call_descriptor, graph,
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AssemblerOptions::Default(main_isolate()), schedule);
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}
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return this->code_.ToHandleChecked()->entry();
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}
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private:
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Code::Kind kind_ = Code::Kind::STUB;
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MaybeHandle<Code> code_;
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};
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template <typename ReturnType>
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class BufferedRawMachineAssemblerTester
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: public RawMachineAssemblerTester<int32_t> {
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public:
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template <typename... ParamMachTypes>
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explicit BufferedRawMachineAssemblerTester(ParamMachTypes... p)
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: RawMachineAssemblerTester<int32_t>(
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MachineType::Pointer(), ((void)p, MachineType::Pointer())...),
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test_graph_signature_(
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CSignature::New(this->main_zone(), MachineType::Int32(), p...)),
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return_parameter_index_(sizeof...(p)) {
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static_assert(sizeof...(p) <= arraysize(parameter_nodes_),
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"increase parameter_nodes_ array");
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std::array<MachineType, sizeof...(p)> p_arr{{p...}};
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for (size_t i = 0; i < p_arr.size(); ++i) {
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parameter_nodes_[i] = Load(p_arr[i], RawMachineAssembler::Parameter(i));
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}
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}
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Address Generate() override { return RawMachineAssemblerTester::Generate(); }
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// The BufferedRawMachineAssemblerTester does not pass parameters directly
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// to the constructed IR graph. Instead it passes a pointer to the parameter
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// to the IR graph, and adds Load nodes to the IR graph to load the
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// parameters from memory. Thereby it is possible to pass 64 bit parameters
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// to the IR graph.
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Node* Parameter(size_t index) {
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CHECK_GT(arraysize(parameter_nodes_), index);
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return parameter_nodes_[index];
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}
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// The BufferedRawMachineAssemblerTester adds a Store node to the IR graph
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// to store the graph's return value in memory. The memory address for the
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// Store node is provided as a parameter. By storing the return value in
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// memory it is possible to return 64 bit values.
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void Return(Node* input) {
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if (COMPRESS_POINTERS_BOOL && MachineTypeForC<ReturnType>().IsTagged()) {
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// Since we are returning values via storing to off-heap location
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// generate full-word store here.
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Store(MachineType::PointerRepresentation(),
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RawMachineAssembler::Parameter(return_parameter_index_),
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BitcastTaggedToWord(input), kNoWriteBarrier);
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} else {
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Store(MachineTypeForC<ReturnType>().representation(),
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RawMachineAssembler::Parameter(return_parameter_index_), input,
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kNoWriteBarrier);
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}
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RawMachineAssembler::Return(Int32Constant(1234));
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}
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template <typename... Params>
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ReturnType Call(Params... p) {
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uintptr_t zap_data[] = {kZapValue, kZapValue};
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ReturnType return_value;
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STATIC_ASSERT(sizeof(return_value) <= sizeof(zap_data));
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MemCopy(&return_value, &zap_data, sizeof(return_value));
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CSignature::VerifyParams<Params...>(test_graph_signature_);
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CallHelper<int32_t>::Call(reinterpret_cast<void*>(&p)...,
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reinterpret_cast<void*>(&return_value));
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return return_value;
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}
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private:
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CSignature* test_graph_signature_;
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Node* parameter_nodes_[4];
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uint32_t return_parameter_index_;
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};
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template <>
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class BufferedRawMachineAssemblerTester<void>
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: public RawMachineAssemblerTester<void> {
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public:
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template <typename... ParamMachTypes>
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explicit BufferedRawMachineAssemblerTester(ParamMachTypes... p)
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: RawMachineAssemblerTester<void>(((void)p, MachineType::Pointer())...),
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test_graph_signature_(
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CSignature::New(RawMachineAssemblerTester<void>::main_zone(),
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MachineType::None(), p...)) {
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static_assert(sizeof...(p) <= arraysize(parameter_nodes_),
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"increase parameter_nodes_ array");
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std::array<MachineType, sizeof...(p)> p_arr{{p...}};
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for (size_t i = 0; i < p_arr.size(); ++i) {
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parameter_nodes_[i] = Load(p_arr[i], RawMachineAssembler::Parameter(i));
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}
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}
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Address Generate() override { return RawMachineAssemblerTester::Generate(); }
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// The BufferedRawMachineAssemblerTester does not pass parameters directly
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// to the constructed IR graph. Instead it passes a pointer to the parameter
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// to the IR graph, and adds Load nodes to the IR graph to load the
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// parameters from memory. Thereby it is possible to pass 64 bit parameters
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// to the IR graph.
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Node* Parameter(size_t index) {
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CHECK_GT(arraysize(parameter_nodes_), index);
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return parameter_nodes_[index];
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}
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template <typename... Params>
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void Call(Params... p) {
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CSignature::VerifyParams<Params...>(test_graph_signature_);
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CallHelper<void>::Call(reinterpret_cast<void*>(&p)...);
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}
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private:
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CSignature* test_graph_signature_;
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Node* parameter_nodes_[4];
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};
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static const bool USE_RESULT_BUFFER = true;
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static const bool USE_RETURN_REGISTER = false;
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static const int32_t CHECK_VALUE = 0x99BEEDCE;
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// TODO(titzer): use the C-style calling convention, or any register-based
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// calling convention for binop tests.
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template <typename CType, bool use_result_buffer>
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class BinopTester {
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public:
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explicit BinopTester(RawMachineAssemblerTester<int32_t>* tester,
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MachineType type)
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: T(tester),
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param0(T->LoadFromPointer(&p0, type)),
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param1(T->LoadFromPointer(&p1, type)),
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type(type),
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p0(static_cast<CType>(0)),
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p1(static_cast<CType>(0)),
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result(static_cast<CType>(0)) {}
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RawMachineAssemblerTester<int32_t>* T;
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Node* param0;
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Node* param1;
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CType call(CType a0, CType a1) {
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p0 = a0;
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p1 = a1;
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if (use_result_buffer) {
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CHECK_EQ(CHECK_VALUE, T->Call());
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return result;
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} else {
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return static_cast<CType>(T->Call());
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}
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}
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void AddReturn(Node* val) {
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if (use_result_buffer) {
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T->Store(type.representation(), T->PointerConstant(&result),
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T->Int32Constant(0), val, kNoWriteBarrier);
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T->Return(T->Int32Constant(CHECK_VALUE));
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} else {
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T->Return(val);
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}
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}
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template <typename Ci, typename Cj, typename Fn>
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void Run(const Ci& ci, const Cj& cj, const Fn& fn) {
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typename Ci::const_iterator i;
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typename Cj::const_iterator j;
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for (i = ci.begin(); i != ci.end(); ++i) {
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for (j = cj.begin(); j != cj.end(); ++j) {
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CHECK_EQ(fn(*i, *j), this->call(*i, *j));
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}
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}
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}
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protected:
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MachineType type;
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CType p0;
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CType p1;
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CType result;
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};
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// A helper class for testing code sequences that take two int parameters and
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// return an int value.
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class Int32BinopTester : public BinopTester<int32_t, USE_RETURN_REGISTER> {
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public:
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explicit Int32BinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<int32_t, USE_RETURN_REGISTER>(tester,
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MachineType::Int32()) {}
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};
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// A helper class for testing code sequences that take two int parameters and
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// return an int value.
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class Int64BinopTester : public BinopTester<int64_t, USE_RETURN_REGISTER> {
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public:
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explicit Int64BinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<int64_t, USE_RETURN_REGISTER>(tester,
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MachineType::Int64()) {}
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};
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// A helper class for testing code sequences that take two uint parameters and
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// return an uint value.
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class Uint32BinopTester : public BinopTester<uint32_t, USE_RETURN_REGISTER> {
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public:
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explicit Uint32BinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<uint32_t, USE_RETURN_REGISTER>(tester,
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MachineType::Uint32()) {}
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uint32_t call(uint32_t a0, uint32_t a1) {
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p0 = a0;
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p1 = a1;
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return static_cast<uint32_t>(T->Call());
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}
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};
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// A helper class for testing code sequences that take two float parameters and
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// return a float value.
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class Float32BinopTester : public BinopTester<float, USE_RESULT_BUFFER> {
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public:
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explicit Float32BinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<float, USE_RESULT_BUFFER>(tester, MachineType::Float32()) {}
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};
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// A helper class for testing code sequences that take two double parameters and
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// return a double value.
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class Float64BinopTester : public BinopTester<double, USE_RESULT_BUFFER> {
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public:
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explicit Float64BinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<double, USE_RESULT_BUFFER>(tester, MachineType::Float64()) {
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}
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};
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// A helper class for testing code sequences that take two pointer parameters
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// and return a pointer value.
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// TODO(titzer): pick word size of pointers based on V8_TARGET.
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template <typename Type>
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class PointerBinopTester : public BinopTester<Type, USE_RETURN_REGISTER> {
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public:
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explicit PointerBinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<Type, USE_RETURN_REGISTER>(tester, MachineType::Pointer()) {
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}
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};
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// A helper class for testing code sequences that take two tagged parameters and
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// return a tagged value.
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template <typename Type>
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class TaggedBinopTester : public BinopTester<Type, USE_RETURN_REGISTER> {
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public:
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explicit TaggedBinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<Type, USE_RETURN_REGISTER>(tester,
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MachineType::AnyTagged()) {}
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};
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// A helper class for testing compares. Wraps a machine opcode and provides
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// evaluation routines and the operators.
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class CompareWrapper {
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public:
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explicit CompareWrapper(IrOpcode::Value op) : opcode(op) {}
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Node* MakeNode(RawMachineAssemblerTester<int32_t>* m, Node* a, Node* b) {
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return m->AddNode(op(m->machine()), a, b);
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}
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const Operator* op(MachineOperatorBuilder* machine) {
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switch (opcode) {
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case IrOpcode::kWord32Equal:
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return machine->Word32Equal();
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case IrOpcode::kInt32LessThan:
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return machine->Int32LessThan();
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case IrOpcode::kInt32LessThanOrEqual:
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return machine->Int32LessThanOrEqual();
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case IrOpcode::kUint32LessThan:
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return machine->Uint32LessThan();
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case IrOpcode::kUint32LessThanOrEqual:
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return machine->Uint32LessThanOrEqual();
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case IrOpcode::kFloat64Equal:
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return machine->Float64Equal();
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case IrOpcode::kFloat64LessThan:
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return machine->Float64LessThan();
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case IrOpcode::kFloat64LessThanOrEqual:
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return machine->Float64LessThanOrEqual();
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default:
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UNREACHABLE();
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}
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return nullptr;
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}
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bool Int32Compare(int32_t a, int32_t b) {
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switch (opcode) {
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case IrOpcode::kWord32Equal:
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return a == b;
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case IrOpcode::kInt32LessThan:
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return a < b;
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case IrOpcode::kInt32LessThanOrEqual:
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return a <= b;
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case IrOpcode::kUint32LessThan:
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return static_cast<uint32_t>(a) < static_cast<uint32_t>(b);
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case IrOpcode::kUint32LessThanOrEqual:
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return static_cast<uint32_t>(a) <= static_cast<uint32_t>(b);
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default:
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UNREACHABLE();
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}
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return false;
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}
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bool Float64Compare(double a, double b) {
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switch (opcode) {
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case IrOpcode::kFloat64Equal:
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return a == b;
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case IrOpcode::kFloat64LessThan:
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return a < b;
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case IrOpcode::kFloat64LessThanOrEqual:
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return a <= b;
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default:
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UNREACHABLE();
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}
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return false;
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}
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IrOpcode::Value opcode;
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};
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// A small closure class to generate code for a function of two inputs that
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// produces a single output so that it can be used in many different contexts.
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// The {expected()} method should compute the expected output for a given
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// pair of inputs.
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template <typename T>
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class BinopGen {
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public:
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virtual void gen(RawMachineAssemblerTester<int32_t>* m, Node* a, Node* b) = 0;
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virtual T expected(T a, T b) = 0;
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virtual ~BinopGen() = default;
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};
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// A helper class to generate various combination of input shape combinations
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// and run the generated code to ensure it produces the correct results.
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class Int32BinopInputShapeTester {
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public:
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explicit Int32BinopInputShapeTester(BinopGen<int32_t>* g)
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: gen(g), input_a(0), input_b(0) {}
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void TestAllInputShapes();
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private:
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BinopGen<int32_t>* gen;
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int32_t input_a;
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int32_t input_b;
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void Run(RawMachineAssemblerTester<int32_t>* m);
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void RunLeft(RawMachineAssemblerTester<int32_t>* m);
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void RunRight(RawMachineAssemblerTester<int32_t>* m);
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};
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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#endif // V8_CCTEST_COMPILER_CODEGEN_TESTER_H_
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