forked from OSchip/llvm-project
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
// The encoding used for conditional codes used in BR instructions
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#ifndef LLVM_LIB_TARGET_LANAI_LANAICONDCODE_H
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#define LLVM_LIB_TARGET_LANAI_LANAICONDCODE_H
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#include "llvm/ADT/StringSwitch.h"
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namespace llvm {
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namespace LPCC {
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enum CondCode {
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ICC_T = 0, // true
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ICC_F = 1, // false
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ICC_HI = 2, // high
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ICC_UGT = 2, // unsigned greater than
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ICC_LS = 3, // low or same
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ICC_ULE = 3, // unsigned less than or equal
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ICC_CC = 4, // carry cleared
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ICC_ULT = 4, // unsigned less than
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ICC_CS = 5, // carry set
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ICC_UGE = 5, // unsigned greater than or equal
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ICC_NE = 6, // not equal
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ICC_EQ = 7, // equal
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ICC_VC = 8, // oVerflow cleared
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ICC_VS = 9, // oVerflow set
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ICC_PL = 10, // plus
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ICC_MI = 11, // minus
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ICC_GE = 12, // greater than or equal
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ICC_LT = 13, // less than
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ICC_GT = 14, // greater than
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ICC_LE = 15, // less than or equal
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UNKNOWN
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};
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inline static StringRef lanaiCondCodeToString(LPCC::CondCode CC) {
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switch (CC) {
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case LPCC::ICC_T:
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return "t"; // true
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case LPCC::ICC_F:
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return "f"; // false
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case LPCC::ICC_NE:
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return "ne"; // not equal
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case LPCC::ICC_EQ:
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return "eq"; // equal
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case LPCC::ICC_VC:
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return "vc"; // oVerflow cleared
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case LPCC::ICC_VS:
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return "vs"; // oVerflow set
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case LPCC::ICC_PL:
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return "pl"; // plus
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case LPCC::ICC_MI:
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return "mi"; // minus
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case LPCC::ICC_GE:
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return "ge"; // greater than or equal
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case LPCC::ICC_LT:
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return "lt"; // less than
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case LPCC::ICC_GT:
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return "gt"; // greater than
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case LPCC::ICC_LE:
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return "le"; // less than or equal
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case LPCC::ICC_UGT:
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return "ugt"; // high | unsigned greater than
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case LPCC::ICC_ULE:
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return "ule"; // low or same | unsigned less or equal
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case LPCC::ICC_ULT:
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return "ult"; // carry cleared | unsigned less than
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case LPCC::ICC_UGE:
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return "uge"; // carry set | unsigned than or equal
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default:
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llvm_unreachable("Invalid cond code");
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}
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}
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inline static CondCode suffixToLanaiCondCode(StringRef S) {
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return StringSwitch<CondCode>(S)
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.EndsWith("f", LPCC::ICC_F)
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.EndsWith("hi", LPCC::ICC_HI)
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.EndsWith("ugt", LPCC::ICC_UGT)
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.EndsWith("ls", LPCC::ICC_LS)
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.EndsWith("ule", LPCC::ICC_ULE)
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.EndsWith("cc", LPCC::ICC_CC)
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.EndsWith("ult", LPCC::ICC_ULT)
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.EndsWith("cs", LPCC::ICC_CS)
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.EndsWith("uge", LPCC::ICC_UGE)
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.EndsWith("ne", LPCC::ICC_NE)
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.EndsWith("eq", LPCC::ICC_EQ)
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.EndsWith("vc", LPCC::ICC_VC)
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.EndsWith("vs", LPCC::ICC_VS)
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.EndsWith("pl", LPCC::ICC_PL)
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.EndsWith("mi", LPCC::ICC_MI)
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.EndsWith("ge", LPCC::ICC_GE)
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.EndsWith("lt", LPCC::ICC_LT)
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.EndsWith("gt", LPCC::ICC_GT)
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.EndsWith("le", LPCC::ICC_LE)
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.EndsWith("t", LPCC::ICC_T) // Has to be after others with suffix t
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.Default(LPCC::UNKNOWN);
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}
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} // namespace LPCC
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} // namespace llvm
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#endif // LLVM_LIB_TARGET_LANAI_LANAICONDCODE_H
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