TableGen: error in enums generated for relationship maps.

[llvmbot]

Bugzilla Link	15246
Version	trunk
OS	Windows NT
Reporter	LLVM Bugzilla Contributor

[llvmbot]

Previous diagnosis was incorrect. Segmentation fault reported earlier was due to 'isBrTaken' field present in RowFields list but not present in the instruction records. Problem disappeared when 'isBrTaken' was removed from RowFields list.

The out-of-bound error in utils/TableGen/CodeGenMapTable.cpp caused enums to be generated incorrectly when the following relationship map was added into Hexagon.td file:

//===----------------------------------------------------------------------===// // Generate mapping table to relate predicate-false instructions with their // predicate-true forms // def getTruePredOpcode : InstrMapping { let FilterClass = "PredRel"; let RowFields = ["BaseOpcode", "PNewValue", "isNVStore"]; let ColFields = ["PredSense"]; let KeyCol = ["false"]; let ValueCols = [["true"]]; }

[llvmbot]

Out-of-bound error in utils/TableGen/CodeGenMapTable.cpp causes TableGen to segfault for the following relationship map:

//===----------------------------------------------------------------------===// // Generate mapping table to relate predicate-false instructions with their // predicate-true forms // def getTruePredOpcode : InstrMapping { let FilterClass = "PredRel"; let RowFields = ["BaseOpcode", "PNewValue", "isNVStore", "isBrTaken"]; let ColFields = ["PredSense"]; let KeyCol = ["false"]; let ValueCols = [["true"]]; }