324 lines
10 KiB
C
324 lines
10 KiB
C
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// 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/v8.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/compiler/structured-machine-assembler.h"
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#include "src/simulator.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 MachineAssembler>
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class MachineAssemblerTester : public HandleAndZoneScope,
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public CallHelper,
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public MachineAssembler {
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public:
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MachineAssemblerTester(MachineRepresentation return_type,
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MachineRepresentation p0, MachineRepresentation p1,
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MachineRepresentation p2, MachineRepresentation p3,
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MachineRepresentation p4)
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: HandleAndZoneScope(),
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CallHelper(main_isolate()),
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MachineAssembler(new (main_zone()) Graph(main_zone()),
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ToCallDescriptorBuilder(main_zone(), return_type, p0,
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p1, p2, p3, p4),
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MachineOperatorBuilder::pointer_rep()) {}
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Node* LoadFromPointer(void* address, MachineRepresentation rep,
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int32_t offset = 0) {
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return this->Load(rep, this->PointerConstant(address),
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this->Int32Constant(offset));
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}
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void StoreToPointer(void* address, MachineRepresentation rep, Node* node) {
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this->Store(rep, this->PointerConstant(address), node);
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}
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Node* StringConstant(const char* string) {
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return this->HeapConstant(
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this->isolate()->factory()->InternalizeUtf8String(string));
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}
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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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protected:
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virtual void VerifyParameters(int parameter_count,
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MachineRepresentation* parameter_types) {
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CHECK_EQ(this->parameter_count(), parameter_count);
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const MachineRepresentation* expected_types = this->parameter_types();
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for (int i = 0; i < parameter_count; i++) {
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CHECK_EQ(expected_types[i], parameter_types[i]);
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}
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}
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virtual byte* Generate() {
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if (code_.is_null()) {
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Schedule* schedule = this->Export();
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CallDescriptor* call_descriptor = this->call_descriptor();
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Graph* graph = this->graph();
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CompilationInfo info(graph->zone()->isolate(), graph->zone());
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Linkage linkage(&info, call_descriptor);
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Pipeline pipeline(&info);
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code_ = pipeline.GenerateCodeForMachineGraph(&linkage, graph, 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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MaybeHandle<Code> code_;
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};
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template <typename ReturnType>
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class RawMachineAssemblerTester
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: public MachineAssemblerTester<RawMachineAssembler>,
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public CallHelper2<ReturnType, RawMachineAssemblerTester<ReturnType> > {
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public:
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RawMachineAssemblerTester(MachineRepresentation p0 = kMachineLast,
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MachineRepresentation p1 = kMachineLast,
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MachineRepresentation p2 = kMachineLast,
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MachineRepresentation p3 = kMachineLast,
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MachineRepresentation p4 = kMachineLast)
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: MachineAssemblerTester(ReturnValueTraits<ReturnType>::Representation(),
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p0, p1, p2, p3, p4) {}
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};
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template <typename ReturnType>
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class StructuredMachineAssemblerTester
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: public MachineAssemblerTester<StructuredMachineAssembler>,
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public CallHelper2<ReturnType,
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StructuredMachineAssemblerTester<ReturnType> > {
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public:
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StructuredMachineAssemblerTester(MachineRepresentation p0 = kMachineLast,
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MachineRepresentation p1 = kMachineLast,
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MachineRepresentation p2 = kMachineLast,
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MachineRepresentation p3 = kMachineLast,
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MachineRepresentation p4 = kMachineLast)
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: MachineAssemblerTester(ReturnValueTraits<ReturnType>::Representation(),
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p0, p1, p2, p3, p4) {}
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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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// 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, MachineRepresentation rep, bool use_result_buffer>
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class BinopTester {
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public:
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static const int32_t CHECK_VALUE = 0x99BEEDCE;
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explicit BinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: T(tester),
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param0(T->LoadFromPointer(&p0, rep)),
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param1(T->LoadFromPointer(&p1, rep)),
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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 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(rep, T->PointerConstant(&result), T->Int32Constant(0), val);
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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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protected:
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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
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: public BinopTester<int32_t, kMachineWord32, 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, kMachineWord32, USE_RETURN_REGISTER>(tester) {}
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int32_t call(uint32_t a0, uint32_t a1) {
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p0 = static_cast<int32_t>(a0);
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p1 = static_cast<int32_t>(a1);
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return T->Call();
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}
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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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// TODO(titzer): figure out how to return doubles correctly on ia32.
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class Float64BinopTester
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: public BinopTester<double, kMachineFloat64, USE_RESULT_BUFFER> {
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public:
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explicit Float64BinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<double, kMachineFloat64, USE_RESULT_BUFFER>(tester) {}
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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
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: public BinopTester<Type*, kMachineWord32, USE_RETURN_REGISTER> {
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public:
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explicit PointerBinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<Type*, kMachineWord32, USE_RETURN_REGISTER>(tester) {}
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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
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: public BinopTester<Type*, kMachineTagged, USE_RETURN_REGISTER> {
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public:
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explicit TaggedBinopTester(RawMachineAssemblerTester<int32_t>* tester)
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: BinopTester<Type*, kMachineTagged, USE_RETURN_REGISTER>(tester) {}
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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->NewNode(op(m->machine()), a, b);
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}
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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 NULL;
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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() {}
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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) : gen(g) {}
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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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