[llvm] [LLVM][Verifier] Move intrinsic signature verification to declarations (PR #204478)

[Jay Foad via llvm-commits]

jayfoad wrote:

I really don't like having the command line option...

> Note that `verify-intrinsic-decls` cannot be set to true by default since some existing ThinLTO tests that use existing bitcode files fails.

Could this be fixed by auto-upgrading old bitcode by discarding unused intrinsic declarations?


https://github.com/llvm/llvm-project/pull/204478