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120
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1 // The encoding used for conditional codes used in BR instructions
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2
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3 #ifndef LLVM_LIB_TARGET_LANAI_LANAICONDCODE_H
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4 #define LLVM_LIB_TARGET_LANAI_LANAICONDCODE_H
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5
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6 #include "llvm/ADT/StringSwitch.h"
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7
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8 namespace llvm {
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9 namespace LPCC {
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10 enum CondCode {
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11 ICC_T = 0, // true
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12 ICC_F = 1, // false
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13 ICC_HI = 2, // high
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14 ICC_UGT = 2, // unsigned greater than
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15 ICC_LS = 3, // low or same
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16 ICC_ULE = 3, // unsigned less than or equal
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17 ICC_CC = 4, // carry cleared
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18 ICC_ULT = 4, // unsigned less than
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19 ICC_CS = 5, // carry set
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20 ICC_UGE = 5, // unsigned greater than or equal
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21 ICC_NE = 6, // not equal
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22 ICC_EQ = 7, // equal
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23 ICC_VC = 8, // oVerflow cleared
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24 ICC_VS = 9, // oVerflow set
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25 ICC_PL = 10, // plus
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26 ICC_MI = 11, // minus
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27 ICC_GE = 12, // greater than or equal
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28 ICC_LT = 13, // less than
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29 ICC_GT = 14, // greater than
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30 ICC_LE = 15, // less than or equal
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31 UNKNOWN
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32 };
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33
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34 inline static StringRef lanaiCondCodeToString(LPCC::CondCode CC) {
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35 switch (CC) {
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36 case LPCC::ICC_T:
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37 return "t"; // true
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38 case LPCC::ICC_F:
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39 return "f"; // false
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40 case LPCC::ICC_NE:
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41 return "ne"; // not equal
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42 case LPCC::ICC_EQ:
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43 return "eq"; // equal
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44 case LPCC::ICC_VC:
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45 return "vc"; // oVerflow cleared
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46 case LPCC::ICC_VS:
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47 return "vs"; // oVerflow set
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48 case LPCC::ICC_PL:
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49 return "pl"; // plus
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50 case LPCC::ICC_MI:
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51 return "mi"; // minus
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52 case LPCC::ICC_GE:
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53 return "ge"; // greater than or equal
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54 case LPCC::ICC_LT:
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55 return "lt"; // less than
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56 case LPCC::ICC_GT:
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57 return "gt"; // greater than
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58 case LPCC::ICC_LE:
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59 return "le"; // less than or equal
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60 case LPCC::ICC_UGT:
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61 return "ugt"; // high | unsigned greater than
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62 case LPCC::ICC_ULE:
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63 return "ule"; // low or same | unsigned less or equal
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64 case LPCC::ICC_ULT:
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65 return "ult"; // carry cleared | unsigned less than
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66 case LPCC::ICC_UGE:
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67 return "uge"; // carry set | unsigned than or equal
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68 default:
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69 llvm_unreachable("Invalid cond code");
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70 }
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71 }
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72
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73 inline static CondCode suffixToLanaiCondCode(StringRef S) {
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74 return StringSwitch<CondCode>(S)
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75 .EndsWith("f", LPCC::ICC_F)
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76 .EndsWith("hi", LPCC::ICC_HI)
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77 .EndsWith("ugt", LPCC::ICC_UGT)
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78 .EndsWith("ls", LPCC::ICC_LS)
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79 .EndsWith("ule", LPCC::ICC_ULE)
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80 .EndsWith("cc", LPCC::ICC_CC)
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81 .EndsWith("ult", LPCC::ICC_ULT)
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82 .EndsWith("cs", LPCC::ICC_CS)
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83 .EndsWith("uge", LPCC::ICC_UGE)
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84 .EndsWith("ne", LPCC::ICC_NE)
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85 .EndsWith("eq", LPCC::ICC_EQ)
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86 .EndsWith("vc", LPCC::ICC_VC)
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87 .EndsWith("vs", LPCC::ICC_VS)
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88 .EndsWith("pl", LPCC::ICC_PL)
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89 .EndsWith("mi", LPCC::ICC_MI)
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90 .EndsWith("ge", LPCC::ICC_GE)
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91 .EndsWith("lt", LPCC::ICC_LT)
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92 .EndsWith("gt", LPCC::ICC_GT)
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93 .EndsWith("le", LPCC::ICC_LE)
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94 .EndsWith("t", LPCC::ICC_T) // Has to be after others with suffix t
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95 .Default(LPCC::UNKNOWN);
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96 }
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97 } // namespace LPCC
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98 } // namespace llvm
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99
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100 #endif // LLVM_LIB_TARGET_LANAI_LANAICONDCODE_H
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