[llvm] [TableGen] Sort matchables depending on predicates. (PR #84483)

[Sergei Barannikov via llvm-commits]

s-barannikov wrote:

We need to figure out the real cause of non-deterministic behavior rather than masking it, so that we are not surprised in the future when it triggers again in a different place. Usually, such behavior is the consequence of using unstable keys (e.g., pointers) in hashtables.
Can you compare two versions of ARMGenAsmMatcher.inc that cause different behavior? This should help localize the issue.


https://github.com/llvm/llvm-project/pull/84483