[clang] [llvm] [ConstantFold] Drop gep of gep fold entirely (PR #95126)

[Nikita Popov via cfe-commits]

nikic wrote:

> I believe this broke our flang+openmp+offload bot: https://lab.llvm.org/staging/#/builders/140/builds/10168 Happy to help looking into it.

That's for the heads-up, I've reverted this patch in https://github.com/llvm/llvm-project/commit/cece0a105b29dcbb9d88d0aa264c4745c07a8456.

I would appreciate some help with debugging this, I don't think I can run this test locally. Probably just having the pre-optimization LLVM IR/bitcode would be enough. (Though with offload, there is probably more than one module involved?)

https://github.com/llvm/llvm-project/pull/95126