[clang] [Clang][OpenCL] Mark scalar loads from constant address space invariant (PR #218356)

[Keshav Vinayak Jha via cfe-commits]

keshavvinayak01 wrote:

@arsenm In that case, I've added tracking `IsInvariant` in the `LValueBaseInfo` class, what do you think?

https://github.com/llvm/llvm-project/pull/218356