[PATCH] D29376: LTO: align the Monolithic LTO optimization pipeline on the ThinLTO and O2/O3 one

[Evgeny Astigeevich via Phabricator via llvm-commits]

eastig added a comment.

Hi Mehdi,

I've got results of benchmarks for Cortex-M4:

- A benchmark failed because something wrong with a created executable.
- A number of performance gains is 21. Max score boost is  ~4x.
- A number of performance losses is 15. Max score degradation is ~47x.

You can see the patch affects performance very much and needs detailed performance analysis.

We have other M-profile boards I'll run the benchmarks on them as well.


https://reviews.llvm.org/D29376