[Openmp-commits] [PATCH] D129344: [libomptarget] compile DeviceRTL bc files with -O3

[Joseph Huber via Phabricator via Openmp-commits]

jhuber6 added a comment.

In D129344#3649015 <https://reviews.llvm.org/D129344#3649015>, @domada wrote:

> @ye-luo Hi,
> Could you describe/share with us some benchmarks results which prove that it is worth to turn on -O3 optimization?

I don't have any graphs, but most applications will see some performance gain when using a more optimized runtime library. I've looked at XSBench, RSBench, MiniQMC, and SU3Bench. Is there a reason having O3 <https://reviews.llvm.org/owners/package/3/> is not desirable? It should only slightly increase the build times for LLVM, which is hardly worth slower execution times.


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https://reviews.llvm.org/D129344