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 "src/compiler/instruction-selector-unittest.h"
6
7 namespace v8 {
8 namespace internal {
9 namespace compiler {
10
11 // -----------------------------------------------------------------------------
12 // Conversions.
13
14
TEST_F(InstructionSelectorTest,ChangeInt32ToInt64WithParameter)15 TEST_F(InstructionSelectorTest, ChangeInt32ToInt64WithParameter) {
16 StreamBuilder m(this, kMachInt64, kMachInt32);
17 m.Return(m.ChangeInt32ToInt64(m.Parameter(0)));
18 Stream s = m.Build();
19 ASSERT_EQ(1U, s.size());
20 EXPECT_EQ(kX64Movsxlq, s[0]->arch_opcode());
21 }
22
23
TEST_F(InstructionSelectorTest,ChangeUint32ToUint64WithParameter)24 TEST_F(InstructionSelectorTest, ChangeUint32ToUint64WithParameter) {
25 StreamBuilder m(this, kMachUint64, kMachUint32);
26 m.Return(m.ChangeUint32ToUint64(m.Parameter(0)));
27 Stream s = m.Build();
28 ASSERT_EQ(1U, s.size());
29 EXPECT_EQ(kX64Movl, s[0]->arch_opcode());
30 }
31
32
TEST_F(InstructionSelectorTest,TruncateInt64ToInt32WithParameter)33 TEST_F(InstructionSelectorTest, TruncateInt64ToInt32WithParameter) {
34 StreamBuilder m(this, kMachInt32, kMachInt64);
35 m.Return(m.TruncateInt64ToInt32(m.Parameter(0)));
36 Stream s = m.Build();
37 ASSERT_EQ(1U, s.size());
38 EXPECT_EQ(kX64Movl, s[0]->arch_opcode());
39 }
40
41
42 // -----------------------------------------------------------------------------
43 // Loads and stores
44
45 namespace {
46
47 struct MemoryAccess {
48 MachineType type;
49 ArchOpcode load_opcode;
50 ArchOpcode store_opcode;
51 };
52
53
operator <<(std::ostream & os,const MemoryAccess & memacc)54 std::ostream& operator<<(std::ostream& os, const MemoryAccess& memacc) {
55 OStringStream ost;
56 ost << memacc.type;
57 return os << ost.c_str();
58 }
59
60
61 static const MemoryAccess kMemoryAccesses[] = {
62 {kMachInt8, kX64Movsxbl, kX64Movb},
63 {kMachUint8, kX64Movzxbl, kX64Movb},
64 {kMachInt16, kX64Movsxwl, kX64Movw},
65 {kMachUint16, kX64Movzxwl, kX64Movw},
66 {kMachInt32, kX64Movl, kX64Movl},
67 {kMachUint32, kX64Movl, kX64Movl},
68 {kMachInt64, kX64Movq, kX64Movq},
69 {kMachUint64, kX64Movq, kX64Movq},
70 {kMachFloat32, kX64Movss, kX64Movss},
71 {kMachFloat64, kX64Movsd, kX64Movsd}};
72
73 } // namespace
74
75
76 typedef InstructionSelectorTestWithParam<MemoryAccess>
77 InstructionSelectorMemoryAccessTest;
78
79
TEST_P(InstructionSelectorMemoryAccessTest,LoadWithParameters)80 TEST_P(InstructionSelectorMemoryAccessTest, LoadWithParameters) {
81 const MemoryAccess memacc = GetParam();
82 StreamBuilder m(this, memacc.type, kMachPtr, kMachInt32);
83 m.Return(m.Load(memacc.type, m.Parameter(0), m.Parameter(1)));
84 Stream s = m.Build();
85 ASSERT_EQ(1U, s.size());
86 EXPECT_EQ(memacc.load_opcode, s[0]->arch_opcode());
87 EXPECT_EQ(2U, s[0]->InputCount());
88 EXPECT_EQ(1U, s[0]->OutputCount());
89 }
90
91
TEST_P(InstructionSelectorMemoryAccessTest,StoreWithParameters)92 TEST_P(InstructionSelectorMemoryAccessTest, StoreWithParameters) {
93 const MemoryAccess memacc = GetParam();
94 StreamBuilder m(this, kMachInt32, kMachPtr, kMachInt32, memacc.type);
95 m.Store(memacc.type, m.Parameter(0), m.Parameter(1), m.Parameter(2));
96 m.Return(m.Int32Constant(0));
97 Stream s = m.Build();
98 ASSERT_EQ(1U, s.size());
99 EXPECT_EQ(memacc.store_opcode, s[0]->arch_opcode());
100 EXPECT_EQ(3U, s[0]->InputCount());
101 EXPECT_EQ(0U, s[0]->OutputCount());
102 }
103
104
105 INSTANTIATE_TEST_CASE_P(InstructionSelectorTest,
106 InstructionSelectorMemoryAccessTest,
107 ::testing::ValuesIn(kMemoryAccesses));
108
109 } // namespace compiler
110 } // namespace internal
111 } // namespace v8
112