[llvm] [SimplifyCFG] Pass context instruction to isSafeToSpeculativelyExecute() (PR #109132)

[Nikita Popov via llvm-commits]

nikic wrote:

No compile-time impact from passing the context: https://llvm-compile-time-tracker.com/compare.php?from=08f5f6dc8b09c702125e57a5e87ba56203de6263&to=043d3701a1a85c9612a4cf0b8e4585d1bdf750d5&stat=instructions:u

https://github.com/llvm/llvm-project/pull/109132