2014-08-08 07:04:07 +00:00
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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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#include "test/compiler-unittests/instruction-selector-unittest.h"
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2014-08-14 06:33:50 +00:00
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#include "src/flags.h"
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2014-08-08 07:04:07 +00:00
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namespace v8 {
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namespace internal {
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namespace compiler {
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2014-08-14 06:33:50 +00:00
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InstructionSelectorTest::InstructionSelectorTest() : rng_(FLAG_random_seed) {}
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2014-08-08 07:04:07 +00:00
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InstructionSelectorTest::Stream InstructionSelectorTest::StreamBuilder::Build(
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InstructionSelector::Features features,
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InstructionSelectorTest::StreamBuilderMode mode) {
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Schedule* schedule = Export();
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2014-08-14 06:33:50 +00:00
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if (FLAG_trace_turbo) {
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OFStream out(stdout);
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out << "=== Schedule before instruction selection ===" << endl << *schedule;
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}
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2014-08-08 07:04:07 +00:00
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EXPECT_NE(0, graph()->NodeCount());
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CompilationInfo info(test_->isolate(), test_->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_position_table(graph());
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InstructionSelector selector(&sequence, &source_position_table, features);
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selector.SelectInstructions();
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if (FLAG_trace_turbo) {
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OFStream out(stdout);
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2014-08-14 06:33:50 +00:00
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out << "=== Code sequence after instruction selection ===" << endl
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<< sequence;
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}
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Stream s;
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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 == kTargetInstructions) {
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switch (instr->arch_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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for (size_t i = 0; i < instr->OutputCount(); ++i) {
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InstructionOperand* output = instr->OutputAt(i);
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EXPECT_NE(InstructionOperand::IMMEDIATE, output->kind());
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if (output->IsConstant()) {
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s.constants_.insert(std::make_pair(
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output->index(), sequence.GetConstant(output->index())));
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}
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}
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for (size_t i = 0; i < instr->InputCount(); ++i) {
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InstructionOperand* input = instr->InputAt(i);
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EXPECT_NE(InstructionOperand::CONSTANT, input->kind());
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if (input->IsImmediate()) {
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s.immediates_.insert(std::make_pair(
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input->index(), sequence.GetImmediate(input->index())));
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}
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}
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s.instructions_.push_back(instr);
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}
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return s;
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}
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2014-08-14 06:33:50 +00:00
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TARGET_TEST_F(InstructionSelectorTest, ReturnParameter) {
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StreamBuilder m(this, kMachineWord32, kMachineWord32);
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m.Return(m.Parameter(0));
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Stream s = m.Build(kAllInstructions);
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ASSERT_EQ(2U, s.size());
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EXPECT_EQ(kArchNop, s[0]->arch_opcode());
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ASSERT_EQ(1U, s[0]->OutputCount());
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EXPECT_EQ(kArchRet, s[1]->arch_opcode());
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EXPECT_EQ(1U, s[1]->InputCount());
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}
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2014-08-14 06:33:50 +00:00
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TARGET_TEST_F(InstructionSelectorTest, ReturnZero) {
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StreamBuilder m(this, kMachineWord32);
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m.Return(m.Int32Constant(0));
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Stream s = m.Build(kAllInstructions);
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ASSERT_EQ(2U, s.size());
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EXPECT_EQ(kArchNop, s[0]->arch_opcode());
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ASSERT_EQ(1U, s[0]->OutputCount());
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EXPECT_EQ(InstructionOperand::CONSTANT, s[0]->OutputAt(0)->kind());
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EXPECT_EQ(0, s.ToInt32(s[0]->OutputAt(0)));
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EXPECT_EQ(kArchRet, s[1]->arch_opcode());
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EXPECT_EQ(1U, s[1]->InputCount());
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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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