lib/Target/Lanai/LanaiCondCode.h

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