[llvm] [SCCP] Add context to SimplifyQuery (PR #100831)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> LGTM, though we probably should probably refuse to fold denormals if context is missing, the current behavior doesn't make a lot of sense. But this change is good in any case.

Disagree, we should never be flushing denormals for non-strict constants folding 

https://github.com/llvm/llvm-project/pull/100831