[llvm] [RFC][TableGen] Require DAG argument for complex operands in InstAlias (PR #136411)

[Sergei Barannikov via llvm-commits]

s-barannikov wrote:

> is this backward in-compatible change?

It isn't. That's why I'd like to gather opinions, whether the new slightly more verbose syntax is helpful and whether it justifies rewriting `InstAlias` definitions. The latter may be non-trivial, as AArch64 changes show.


https://github.com/llvm/llvm-project/pull/136411