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1 //===- MachineOperandTest.cpp ---------------------------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #include "llvm/CodeGen/MachineOperand.h"
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10 #include "llvm/ADT/ilist_node.h"
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11 #include "llvm/IR/Constants.h"
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12 #include "llvm/IR/InstrTypes.h"
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13 #include "llvm/IR/LLVMContext.h"
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14 #include "llvm/IR/Module.h"
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15 #include "llvm/IR/ModuleSlotTracker.h"
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16 #include "llvm/MC/MCContext.h"
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17 #include "llvm/MC/MCAsmInfo.h"
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18 #include "llvm/Support/raw_ostream.h"
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19 #include "gtest/gtest.h"
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20
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21 using namespace llvm;
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22
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23 namespace {
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24
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25 TEST(MachineOperandTest, ChangeToTargetIndexTest) {
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26 // Creating a MachineOperand to change it to TargetIndex
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27 MachineOperand MO = MachineOperand::CreateImm(50);
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28
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29 // Checking some precondition on the newly created
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30 // MachineOperand.
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31 ASSERT_TRUE(MO.isImm());
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32 ASSERT_TRUE(MO.getImm() == 50);
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33 ASSERT_FALSE(MO.isTargetIndex());
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34
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35 // Changing to TargetIndex with some arbitrary values
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36 // for index, offset and flags.
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37 MO.ChangeToTargetIndex(74, 57, 12);
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38
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39 // Checking that the mutation to TargetIndex happened
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40 // correctly.
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41 ASSERT_TRUE(MO.isTargetIndex());
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42 ASSERT_TRUE(MO.getIndex() == 74);
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43 ASSERT_TRUE(MO.getOffset() == 57);
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44 ASSERT_TRUE(MO.getTargetFlags() == 12);
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45 }
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46
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47 TEST(MachineOperandTest, PrintRegisterMask) {
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48 uint32_t Dummy;
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49 MachineOperand MO = MachineOperand::CreateRegMask(&Dummy);
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50
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51 // Checking some preconditions on the newly created
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52 // MachineOperand.
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53 ASSERT_TRUE(MO.isRegMask());
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54 ASSERT_TRUE(MO.getRegMask() == &Dummy);
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55
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56 // Print a MachineOperand containing a RegMask. Here we check that without a
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57 // TRI and IntrinsicInfo we still print a less detailed regmask.
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58 std::string str;
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59 raw_string_ostream OS(str);
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60 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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61 ASSERT_TRUE(OS.str() == "<regmask ...>");
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62 }
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63
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64 TEST(MachineOperandTest, PrintSubReg) {
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65 // Create a MachineOperand with RegNum=1 and SubReg=5.
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66 MachineOperand MO = MachineOperand::CreateReg(
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67 /*Reg=*/1, /*isDef=*/false, /*isImp=*/false, /*isKill=*/false,
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68 /*isDead=*/false, /*isUndef=*/false, /*isEarlyClobber=*/false,
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69 /*SubReg=*/5, /*isDebug=*/false, /*isInternalRead=*/false);
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70
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71 // Checking some preconditions on the newly created
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72 // MachineOperand.
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73 ASSERT_TRUE(MO.isReg());
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74 ASSERT_TRUE(MO.getReg() == 1);
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75 ASSERT_TRUE(MO.getSubReg() == 5);
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76
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77 // Print a MachineOperand containing a SubReg. Here we check that without a
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78 // TRI and IntrinsicInfo we can still print the subreg index.
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79 std::string str;
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80 raw_string_ostream OS(str);
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81 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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82 ASSERT_TRUE(OS.str() == "$physreg1.subreg5");
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83 }
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84
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85 TEST(MachineOperandTest, PrintCImm) {
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86 LLVMContext Context;
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87 APInt Int(128, UINT64_MAX);
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88 ++Int;
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89 ConstantInt *CImm = ConstantInt::get(Context, Int);
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90 // Create a MachineOperand with an Imm=(UINT64_MAX + 1)
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91 MachineOperand MO = MachineOperand::CreateCImm(CImm);
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92
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93 // Checking some preconditions on the newly created
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94 // MachineOperand.
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95 ASSERT_TRUE(MO.isCImm());
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96 ASSERT_TRUE(MO.getCImm() == CImm);
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97 ASSERT_TRUE(MO.getCImm()->getValue() == Int);
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98
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99 // Print a MachineOperand containing a SubReg. Here we check that without a
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100 // TRI and IntrinsicInfo we can still print the subreg index.
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101 std::string str;
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102 raw_string_ostream OS(str);
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103 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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104 ASSERT_TRUE(OS.str() == "i128 18446744073709551616");
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105 }
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106
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107 TEST(MachineOperandTest, PrintSubRegIndex) {
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108 // Create a MachineOperand with an immediate and print it as a subreg index.
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109 MachineOperand MO = MachineOperand::CreateImm(3);
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110
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111 // Checking some preconditions on the newly created
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112 // MachineOperand.
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113 ASSERT_TRUE(MO.isImm());
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114 ASSERT_TRUE(MO.getImm() == 3);
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115
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116 // Print a MachineOperand containing a SubRegIdx. Here we check that without a
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117 // TRI and IntrinsicInfo we can print the operand as a subreg index.
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118 std::string str;
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119 raw_string_ostream OS(str);
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120 MachineOperand::printSubRegIdx(OS, MO.getImm(), nullptr);
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121 ASSERT_TRUE(OS.str() == "%subreg.3");
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122 }
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123
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124 TEST(MachineOperandTest, PrintCPI) {
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125 // Create a MachineOperand with a constant pool index and print it.
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126 MachineOperand MO = MachineOperand::CreateCPI(0, 8);
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127
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128 // Checking some preconditions on the newly created
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129 // MachineOperand.
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130 ASSERT_TRUE(MO.isCPI());
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131 ASSERT_TRUE(MO.getIndex() == 0);
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132 ASSERT_TRUE(MO.getOffset() == 8);
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133
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134 // Print a MachineOperand containing a constant pool index and a positive
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135 // offset.
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136 std::string str;
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137 {
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138 raw_string_ostream OS(str);
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139 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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140 ASSERT_TRUE(OS.str() == "%const.0 + 8");
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141 }
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142
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143 str.clear();
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144
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145 MO.setOffset(-12);
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146
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147 // Print a MachineOperand containing a constant pool index and a negative
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148 // offset.
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149 {
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150 raw_string_ostream OS(str);
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151 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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152 ASSERT_TRUE(OS.str() == "%const.0 - 12");
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153 }
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154 }
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155
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156 TEST(MachineOperandTest, PrintTargetIndexName) {
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157 // Create a MachineOperand with a target index and print it.
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158 MachineOperand MO = MachineOperand::CreateTargetIndex(0, 8);
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159
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160 // Checking some preconditions on the newly created
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161 // MachineOperand.
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162 ASSERT_TRUE(MO.isTargetIndex());
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163 ASSERT_TRUE(MO.getIndex() == 0);
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164 ASSERT_TRUE(MO.getOffset() == 8);
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165
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166 // Print a MachineOperand containing a target index and a positive offset.
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167 std::string str;
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168 {
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169 raw_string_ostream OS(str);
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170 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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171 ASSERT_TRUE(OS.str() == "target-index(<unknown>) + 8");
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172 }
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173
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174 str.clear();
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175
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176 MO.setOffset(-12);
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177
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178 // Print a MachineOperand containing a target index and a negative offset.
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179 {
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180 raw_string_ostream OS(str);
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181 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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182 ASSERT_TRUE(OS.str() == "target-index(<unknown>) - 12");
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183 }
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184 }
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185
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186 TEST(MachineOperandTest, PrintJumpTableIndex) {
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187 // Create a MachineOperand with a jump-table index and print it.
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188 MachineOperand MO = MachineOperand::CreateJTI(3);
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189
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190 // Checking some preconditions on the newly created
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191 // MachineOperand.
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192 ASSERT_TRUE(MO.isJTI());
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193 ASSERT_TRUE(MO.getIndex() == 3);
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194
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195 // Print a MachineOperand containing a jump-table index.
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196 std::string str;
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197 raw_string_ostream OS(str);
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198 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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199 ASSERT_TRUE(OS.str() == "%jump-table.3");
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200 }
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201
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202 TEST(MachineOperandTest, PrintExternalSymbol) {
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203 // Create a MachineOperand with an external symbol and print it.
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204 MachineOperand MO = MachineOperand::CreateES("foo");
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205
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206 // Checking some preconditions on the newly created
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207 // MachineOperand.
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208 ASSERT_TRUE(MO.isSymbol());
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209 ASSERT_TRUE(MO.getSymbolName() == StringRef("foo"));
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210
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211 // Print a MachineOperand containing an external symbol and no offset.
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212 std::string str;
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213 {
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214 raw_string_ostream OS(str);
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215 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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216 ASSERT_TRUE(OS.str() == "&foo");
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217 }
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218
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219 str.clear();
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220 MO.setOffset(12);
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221
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222 // Print a MachineOperand containing an external symbol and a positive offset.
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223 {
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224 raw_string_ostream OS(str);
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225 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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226 ASSERT_TRUE(OS.str() == "&foo + 12");
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227 }
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228
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229 str.clear();
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230 MO.setOffset(-12);
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231
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232 // Print a MachineOperand containing an external symbol and a negative offset.
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233 {
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234 raw_string_ostream OS(str);
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235 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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236 ASSERT_TRUE(OS.str() == "&foo - 12");
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237 }
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238 }
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239
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240 TEST(MachineOperandTest, PrintGlobalAddress) {
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241 LLVMContext Ctx;
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242 Module M("MachineOperandGVTest", Ctx);
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243 M.getOrInsertGlobal("foo", Type::getInt32Ty(Ctx));
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244
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245 GlobalValue *GV = M.getNamedValue("foo");
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246
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247 // Create a MachineOperand with a global address and a positive offset and
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248 // print it.
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249 MachineOperand MO = MachineOperand::CreateGA(GV, 12);
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250
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251 // Checking some preconditions on the newly created
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252 // MachineOperand.
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253 ASSERT_TRUE(MO.isGlobal());
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254 ASSERT_TRUE(MO.getGlobal() == GV);
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255 ASSERT_TRUE(MO.getOffset() == 12);
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256
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257 std::string str;
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258 // Print a MachineOperand containing a global address and a positive offset.
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259 {
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260 raw_string_ostream OS(str);
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261 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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262 ASSERT_TRUE(OS.str() == "@foo + 12");
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263 }
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264
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265 str.clear();
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266 MO.setOffset(-12);
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267
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268 // Print a MachineOperand containing a global address and a negative offset.
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269 {
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270 raw_string_ostream OS(str);
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271 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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272 ASSERT_TRUE(OS.str() == "@foo - 12");
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273 }
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274 }
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275
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276 TEST(MachineOperandTest, PrintRegisterLiveOut) {
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277 // Create a MachineOperand with a register live out list and print it.
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278 uint32_t Mask = 0;
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279 MachineOperand MO = MachineOperand::CreateRegLiveOut(&Mask);
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280
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281 // Checking some preconditions on the newly created
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282 // MachineOperand.
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283 ASSERT_TRUE(MO.isRegLiveOut());
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284 ASSERT_TRUE(MO.getRegLiveOut() == &Mask);
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285
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286 std::string str;
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287 // Print a MachineOperand containing a register live out list without a TRI.
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288 raw_string_ostream OS(str);
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289 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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290 ASSERT_TRUE(OS.str() == "liveout(<unknown>)");
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291 }
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292
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293 TEST(MachineOperandTest, PrintMetadata) {
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294 LLVMContext Ctx;
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295 Module M("MachineOperandMDNodeTest", Ctx);
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296 NamedMDNode *MD = M.getOrInsertNamedMetadata("namedmd");
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297 ModuleSlotTracker MST(&M);
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298 Metadata *MDS = MDString::get(Ctx, "foo");
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299 MDNode *Node = MDNode::get(Ctx, MDS);
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300 MD->addOperand(Node);
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301
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302 // Create a MachineOperand with a metadata and print it.
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303 MachineOperand MO = MachineOperand::CreateMetadata(Node);
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304
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305 // Checking some preconditions on the newly created
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306 // MachineOperand.
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307 ASSERT_TRUE(MO.isMetadata());
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308 ASSERT_TRUE(MO.getMetadata() == Node);
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309
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310 std::string str;
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311 // Print a MachineOperand containing a metadata node.
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312 raw_string_ostream OS(str);
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313 MO.print(OS, MST, LLT{}, /*OpIdx*/~0U, /*PrintDef=*/false, /*IsStandalone=*/false,
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314 /*ShouldPrintRegisterTies=*/false, 0, /*TRI=*/nullptr,
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315 /*IntrinsicInfo=*/nullptr);
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316 ASSERT_TRUE(OS.str() == "!0");
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317 }
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318
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319 TEST(MachineOperandTest, PrintMCSymbol) {
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320 MCAsmInfo MAI;
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221
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321 Triple T = Triple("unknown-unknown-unknown");
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322 MCContext Ctx(T, &MAI, /*MRI=*/nullptr, /*MSTI=*/nullptr);
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323 MCSymbol *Sym = Ctx.getOrCreateSymbol("foo");
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324
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325 // Create a MachineOperand with a metadata and print it.
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326 MachineOperand MO = MachineOperand::CreateMCSymbol(Sym);
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327
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328 // Checking some preconditions on the newly created
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329 // MachineOperand.
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330 ASSERT_TRUE(MO.isMCSymbol());
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331 ASSERT_TRUE(MO.getMCSymbol() == Sym);
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332
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333 std::string str;
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334 // Print a MachineOperand containing a metadata node.
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335 raw_string_ostream OS(str);
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336 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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337 ASSERT_TRUE(OS.str() == "<mcsymbol foo>");
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338 }
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339
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340 TEST(MachineOperandTest, PrintCFI) {
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341 // Create a MachineOperand with a CFI index but no function and print it.
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342 MachineOperand MO = MachineOperand::CreateCFIIndex(8);
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343
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344 // Checking some preconditions on the newly created
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345 // MachineOperand.
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346 ASSERT_TRUE(MO.isCFIIndex());
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347 ASSERT_TRUE(MO.getCFIIndex() == 8);
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348
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349 std::string str;
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350 // Print a MachineOperand containing a CFI Index node but no machine function
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351 // attached to it.
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352 raw_string_ostream OS(str);
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353 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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354 ASSERT_TRUE(OS.str() == "<cfi directive>");
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355 }
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356
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357 TEST(MachineOperandTest, PrintIntrinsicID) {
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358 // Create a MachineOperand with a generic intrinsic ID.
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359 MachineOperand MO = MachineOperand::CreateIntrinsicID(Intrinsic::bswap);
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360
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361 // Checking some preconditions on the newly created
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362 // MachineOperand.
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363 ASSERT_TRUE(MO.isIntrinsicID());
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364 ASSERT_TRUE(MO.getIntrinsicID() == Intrinsic::bswap);
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365
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366 std::string str;
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367 {
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368 // Print a MachineOperand containing a generic intrinsic ID.
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369 raw_string_ostream OS(str);
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370 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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371 ASSERT_TRUE(OS.str() == "intrinsic(@llvm.bswap)");
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372 }
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373
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374 str.clear();
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375 // Set a target-specific intrinsic.
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376 MO = MachineOperand::CreateIntrinsicID((Intrinsic::ID)-1);
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377 {
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378 // Print a MachineOperand containing a target-specific intrinsic ID but not
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379 // IntrinsicInfo.
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380 raw_string_ostream OS(str);
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381 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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382 ASSERT_TRUE(OS.str() == "intrinsic(4294967295)");
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383 }
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384 }
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385
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386 TEST(MachineOperandTest, PrintPredicate) {
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387 // Create a MachineOperand with a generic intrinsic ID.
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388 MachineOperand MO = MachineOperand::CreatePredicate(CmpInst::ICMP_EQ);
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389
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390 // Checking some preconditions on the newly created
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391 // MachineOperand.
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392 ASSERT_TRUE(MO.isPredicate());
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393 ASSERT_TRUE(MO.getPredicate() == CmpInst::ICMP_EQ);
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394
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395 std::string str;
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396 // Print a MachineOperand containing a int predicate ICMP_EQ.
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397 raw_string_ostream OS(str);
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398 MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
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399 ASSERT_TRUE(OS.str() == "intpred(eq)");
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400 }
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401
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402 TEST(MachineOperandTest, HashValue) {
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403 char SymName1[] = "test";
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404 char SymName2[] = "test";
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405 MachineOperand MO1 = MachineOperand::CreateES(SymName1);
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406 MachineOperand MO2 = MachineOperand::CreateES(SymName2);
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407 ASSERT_NE(SymName1, SymName2);
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408 ASSERT_EQ(hash_value(MO1), hash_value(MO2));
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409 ASSERT_TRUE(MO1.isIdenticalTo(MO2));
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410 }
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411
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412 } // end namespace
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