[PATCH] D38085: Use the basic cost if a GEP is not used as addressing mode

[Evgeny Astigeevich via Phabricator via llvm-commits]

eastig added a comment.

The patch has caused a few regressions on Arm too. They are within 5%. We investigated some of them. For example, the unrolling is not applied. However the unrolling could figure out that some non-free GEPs are removed during optimisation. Maybe other passes have the similar problem. We currently need more precise cost model for inlining at Oz. However we started looking at the recently introduced TTI code size cost if we can use it.
At which optimisation level is the inlining affected? Could we fix the issues by updating the heuristics?


https://reviews.llvm.org/D38085