[llvm] Port CodeGenPrepare to new pass manager (and BasicBlockSectionsProfil… (PR #75380)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

It's an expensive checks failure, so you'll need to enable expensive checks in order to reproduce it. `-DLLVM_ENABLE_EXPENSIVE_CHECKS=ON` on your CMake invocation should set it up. You'll probably also want to set `-DLLVM_OPTIMIZED_TABLEGEN=ON` as well or some of the backends will take forever to build (particularly AMDGPU).

https://github.com/llvm/llvm-project/pull/75380