Alex Richardson 44ce487bfe [TableGen] Emit more helpful error messages on empty type set ...

I have seen this error quite frequently in our out-of-tree CHERI backends
and the lack of location information sometimes makes it quite difficult
to track down the actual source of the error.
This patch changes the llvm_unreachable() to a PrintFatalError() so that
tablegen prints a stack of source locations.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D99468

2021-03-31 09:24:03 +01:00

170 KiB

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