[flang-commits] [clang] [flang] [llvm] [flang][cmake][perf-training] Optimize flang with PGO and BOLT (PR #198863)

[Paul Osmialowski via flang-commits]

================

----------------
pawosm-arm wrote:

That's how it was done with the other PR #197947 where a simple set of perf-trainig files is being proposed. In case of clang, additionally there is a test case reusing a part of the C++ clang codebase itself, addressing it through a simple Makefile target. Sadly, there is no Makefile target available here for the `check-flag` Fortran codes, so the same method (as the one used by clang) cannot be reused here. I did various attempts until I got the final prof that it is simply impossible, so the answer is, no, Flang's version using `check-flang` for performance training should not follow the same pattern.


https://github.com/llvm/llvm-project/pull/198863