5079260ec7
I was hitting this error and the error location was pointing to the register class definition instead of the incorrect InstAlias. Pass in the InstAlias location to make it easier to debug. Happens with `def : InstAlias<"foo", (Inst X0)>`, where `Inst` takes a RegClassByHwMode operand that is not necessarily satisfied by register X0. Similar problem with the CompressPat backend. Reviewed By: arsenm Pull Request: https://github.com/llvm/llvm-project/pull/170790