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1 // Copyright 2014 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "test/unittests/compiler/test-instruction-selector.h" | |
6 #include "test/unittests/unittests.h" | |
7 | |
8 namespace v8 { | |
9 namespace internal { | |
10 namespace compiler { | |
11 | |
12 InstructionSelectorTest::Stream InstructionSelectorTest::StreamBuilder::Build( | |
13 InstructionSelectorTest::StreamBuilderMode mode) { | |
14 Schedule* schedule = Export(); | |
15 EXPECT_NE(0, graph()->NodeCount()); | |
16 CompilationInfo info(test_->isolate(), test_->zone()); | |
17 Linkage linkage(&info, call_descriptor()); | |
18 InstructionSequence sequence(&linkage, graph(), schedule); | |
19 SourcePositionTable source_position_table(graph()); | |
20 InstructionSelector selector(&sequence, &source_position_table); | |
21 selector.SelectInstructions(); | |
22 OFStream out(stdout); | |
23 out << "--- Code sequence after instruction selection ---" << endl | |
24 << sequence; | |
25 Stream s; | |
26 for (InstructionSequence::const_iterator i = sequence.begin(); | |
27 i != sequence.end(); ++i) { | |
28 Instruction* instr = *i; | |
29 if (instr->opcode() < 0) continue; | |
30 if (mode == kTargetInstructions) { | |
31 switch (instr->arch_opcode()) { | |
32 #define CASE(Name) \ | |
33 case k##Name: \ | |
34 break; | |
35 TARGET_ARCH_OPCODE_LIST(CASE) | |
36 #undef CASE | |
37 default: | |
38 continue; | |
39 } | |
40 } | |
41 for (size_t i = 0; i < instr->OutputCount(); ++i) { | |
42 InstructionOperand* output = instr->OutputAt(i); | |
43 EXPECT_NE(InstructionOperand::IMMEDIATE, output->kind()); | |
44 if (output->IsConstant()) { | |
45 s.constants_.insert(std::make_pair( | |
46 output->index(), sequence.GetConstant(output->index()))); | |
47 } | |
48 } | |
49 for (size_t i = 0; i < instr->InputCount(); ++i) { | |
50 InstructionOperand* input = instr->InputAt(i); | |
51 EXPECT_NE(InstructionOperand::CONSTANT, input->kind()); | |
52 if (input->IsImmediate()) { | |
53 s.immediates_.insert(std::make_pair( | |
54 input->index(), sequence.GetImmediate(input->index()))); | |
55 } | |
56 } | |
57 s.instructions_.push_back(instr); | |
58 } | |
59 return s; | |
60 } | |
61 | |
62 | |
63 COMPILER_TEST_F(InstructionSelectorTest, ReturnZero) { | |
64 StreamBuilder m(this, kMachineWord32); | |
65 m.Return(m.Int32Constant(0)); | |
66 Stream s = m.Build(kAllInstructions); | |
67 ASSERT_EQ(2U, s.size()); | |
68 EXPECT_EQ(kArchNop, s[0]->arch_opcode()); | |
69 ASSERT_EQ(1U, s[0]->OutputCount()); | |
70 EXPECT_EQ(InstructionOperand::CONSTANT, s[0]->OutputAt(0)->kind()); | |
71 EXPECT_EQ(0, s.ToInt32(s[0]->OutputAt(0))); | |
72 EXPECT_EQ(kArchRet, s[1]->arch_opcode()); | |
73 EXPECT_EQ(1U, s[1]->InputCount()); | |
74 } | |
75 | |
76 } // namespace compiler | |
77 } // namespace internal | |
78 } // namespace v8 | |
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