[clang] [flang] [llvm] [InstCombine] Canonicalize constant GEPs to i8 source element type (PR #68882)

[Nikita Popov via cfe-commits]

nikic wrote:

@htyu LLVM does not support this. Support for doing that was officially removed about ten years ago when data layout became mandatory, but even prior to that IR was already target-specific, e.g. due to target-specific ABI. I think some parts of MLIR may support this, but certainly nothing does on the LLVM IR level.

https://github.com/llvm/llvm-project/pull/68882