dblaikie added a comment.

In D62635#1548157 <https://reviews.llvm.org/D62635#1548157>, @rnk wrote:

> We did things this way to track which **enumerators** were used, not which 
> enums were used. Size data showed it was worth doing (6%). The existing 
> format doesn't support tracking usage of individual enumerators, so we 
> pretended they were const integers to avoid changing the schema.


Ah - describing all the enumerators in any emitted enum would be too many 
bits/too much size in output?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62635/new/

https://reviews.llvm.org/D62635



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