a1383e2250
R=mstarzinger@chromium.org Review URL: https://codereview.chromium.org/426233002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
120 lines
3.7 KiB
C++
120 lines
3.7 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_INSTRUCTION_SELECTOR_TEST_H_
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#define V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_
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#include <deque>
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#include <set>
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#include "src/compiler/instruction-selector.h"
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#include "src/compiler/raw-machine-assembler.h"
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#include "src/ostreams.h"
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#include "test/cctest/cctest.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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typedef std::set<int> VirtualRegisterSet;
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enum InstructionSelectorTesterMode { kTargetMode, kInternalMode };
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class InstructionSelectorTester : public HandleAndZoneScope,
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public RawMachineAssembler {
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public:
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enum Mode { kTargetMode, kInternalMode };
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static const int kParameterCount = 3;
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static MachineRepresentation* BuildParameterArray(Zone* zone) {
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MachineRepresentation* array =
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zone->NewArray<MachineRepresentation>(kParameterCount);
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for (int i = 0; i < kParameterCount; ++i) {
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array[i] = kMachineWord32;
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}
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return array;
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}
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explicit InstructionSelectorTester(Mode mode = kTargetMode)
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: RawMachineAssembler(
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new (main_zone()) Graph(main_zone()), new (main_zone())
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MachineCallDescriptorBuilder(kMachineWord32, kParameterCount,
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BuildParameterArray(main_zone())),
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MachineOperatorBuilder::pointer_rep()),
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mode_(mode) {}
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void SelectInstructions() {
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OFStream out(stdout);
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Schedule* schedule = Export();
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CHECK_NE(0, graph()->NodeCount());
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CompilationInfo info(main_isolate(), main_zone());
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Linkage linkage(&info, call_descriptor());
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InstructionSequence sequence(&linkage, graph(), schedule);
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SourcePositionTable source_positions(graph());
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InstructionSelector selector(&sequence, &source_positions);
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selector.SelectInstructions();
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out << "--- Code sequence after instruction selection --- " << endl
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<< sequence;
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for (InstructionSequence::const_iterator i = sequence.begin();
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i != sequence.end(); ++i) {
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Instruction* instr = *i;
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if (instr->opcode() < 0) continue;
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if (mode_ == kTargetMode) {
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switch (ArchOpcodeField::decode(instr->opcode())) {
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#define CASE(Name) \
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case k##Name: \
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break;
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TARGET_ARCH_OPCODE_LIST(CASE)
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#undef CASE
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default:
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continue;
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}
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}
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code.push_back(instr);
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}
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for (int vreg = 0; vreg < sequence.VirtualRegisterCount(); ++vreg) {
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if (sequence.IsDouble(vreg)) {
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CHECK(!sequence.IsReference(vreg));
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doubles.insert(vreg);
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}
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if (sequence.IsReference(vreg)) {
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CHECK(!sequence.IsDouble(vreg));
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references.insert(vreg);
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}
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}
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immediates.assign(sequence.immediates().begin(),
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sequence.immediates().end());
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}
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int32_t ToInt32(const InstructionOperand* operand) const {
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size_t i = operand->index();
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CHECK(i < immediates.size());
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CHECK_EQ(InstructionOperand::IMMEDIATE, operand->kind());
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return immediates[i].ToInt32();
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}
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std::deque<Instruction*> code;
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VirtualRegisterSet doubles;
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VirtualRegisterSet references;
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std::deque<Constant> immediates;
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private:
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Mode mode_;
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};
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static inline void CheckSameVreg(InstructionOperand* exp,
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InstructionOperand* val) {
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CHECK_EQ(InstructionOperand::UNALLOCATED, exp->kind());
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CHECK_EQ(InstructionOperand::UNALLOCATED, val->kind());
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CHECK_EQ(UnallocatedOperand::cast(exp)->virtual_register(),
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UnallocatedOperand::cast(val)->virtual_register());
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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_INSTRUCTION_SELECTOR_TEST_H_
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