[llvm] [GVN] MemorySSA for GVN: embed the memory state in symbolic expressions (PR #123218)

[Antonio Frighetto via llvm-commits]

antoniofrighetto wrote:

> > > Can you check which tests are broken after turning on `GVNEnableMemorySSA`?
> > 
> > 
> > Were you referring to [dtcxzyw/llvm-opt-benchmark#1995](https://github.com/dtcxzyw/llvm-opt-benchmark/pull/1995) or some other tests that now appear to be broken?
> 
> I mean the existing regression tests (with MemDep on). They should be helpful as we are planning to replace MemDep with MemSSA in the future.

The transition is still incomplete. I think it would be desirable to look at them in batch before turning MemSSAEnabled on, once the whole series of patches have landed.

https://github.com/llvm/llvm-project/pull/123218