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
8namespace llvm {
9namespace LPCC {
10enum 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
34inline 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
73inline 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
101