[llvm-dev] Using PGO and -O3
Xinliang David Li via llvm-dev
llvm-dev at lists.llvm.org
Sun Jan 28 18:51:56 PST 2018
It means using PGO with -O2 and above (including -O3).
On Sun, Jan 28, 2018 at 6:48 PM, Victor Leschuk via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hello all,
> clang-related PGO documentation recommends using PGO with -O2 (for
> The question is: is there any reason why exactly -O2 is used in
> examples? Are there any factors which can cause problems when using PGO
> with -O3?
> Thanks in advance for your advice!
> Best Regards,
> Victor Leschuk | Software Engineer | Access Softek
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
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