[llvm] add: hidden option to disable slow wasm pass (PR #67715)

[Dan Gohman via llvm-commits]

sunfishcode wrote:

Ideally we should fix the pass to not be so pathologically slow. If your code compiles successfully with the pass disabled, that probably means your code has no multiple-entry loops, which is probably a very common case, and it seems like the pass ought to be able to quickly detect and exit without doing any extra work.

However, until that's fixed, I'm ok merging this patch adding a hidden flag.


https://github.com/llvm/llvm-project/pull/67715