Information about one near-miss encoding when instruction matching fails.
Declared in <llvm/MC/MCParser/MCTargetAsmParser.h>
class NearMissInfo;When matching of an assembly instruction fails, there may be multiple encodings that are close to being a match. It's often ambiguous which one the programmer intended to use, so we want to report an error which mentions each of these "near-miss" encodings. This struct contains information about one such encoding, and why it did not match the parsed instruction.
| Name | Description |
|---|---|
NearMissKind | Classification of why an encoding was a near miss. |
| Name | Description |
|---|---|
getFeatures | Return features required by the instruction but missing on the target. |
getKind | Return the near-miss kind. |
getOpcode | Return the opcode of the encoding that was nearly matched. |
getOperandClass | Return the expected operand class that did not match. |
getOperandError | Return the operand-validation error code. |
getOperandIndex | Return the index of the mismatched operand in the parsed list. |
getPredicateError | Return the target predicate error code for this encoding. |
operator bool | Return true if this describes an actual near miss. |
| Name | Description |
|---|---|
getMissedFeature | Return a near miss for missing target features. |
getMissedOperand | Return a near miss for a single incorrect operand. |
getMissedPredicate | Return a near miss from a failed target predicate. |
getSuccess | Return a success sentinel used internally by the table-generated matcher. |
getTooFewOperands | Return a near miss when too few operands were parsed. |
| Name | Description |
|---|---|
Features [variant member] | Features required but not enabled for a feature near miss. |
MissedOperand [variant member] | Details of a single mismatched operand. |
PredicateError [variant member] | Target predicate error code for a predicate near miss. |
TooFewOperands [variant member] | Details when too few operands were provided. |