[llvm-branch-commits] [clang] release/20.x: [clang][CodeGen] `sret` args should always point to the `alloca` AS, so use that (#114062) (PR #127552)

[Matt Arsenault via llvm-branch-commits]

arsenm wrote:

> @arsenm This is a pretty large change, what bug does it fix?

The rocm device libs build crashes without this. Alternatively we need to revert 6e0b0038cd65ce726ce404305a06e1cf33e36cca

https://github.com/llvm/llvm-project/pull/127552