Consider explicit mapping for BCTI_Virtual, BCTI_Public, etc

[bcardosolopes]

Consider explicit mapping for BCTI_Virtual, BCTI_Public, etc

[eparoshin]

Hi, I am a new to mlir, I would like to take this issue.

[lanza]

Hi, I am a new to mlir, I would like to take this issue.

Feel free to take it, I'll assign it to you for now :p

[eparoshin]

Hi, I am trying to figure out, what I should do here. As far as I understand, I should create two new attributes, representing this enums. For the first one with VMI type info flags I want to use BitEnumAttr, and for the second one with Base class type info, I need an attribute, containing BitEnumAttr, and an IntAttr for the offset. Then I need to create lowerCirAttrAsValue functions for new attributes here, so that llvm ir will contain the same integers, representing flags and offset flags, as now. so the change will be only in cir, it will not affect llvm ir. Have I understood the task correctly?