[Mesa-dev] General safety of building with O3 instead of O2

Matt Turner mattst88 at gmail.com
Wed Oct 12 21:03:13 UTC 2016


On Wed, Oct 12, 2016 at 12:40 PM, Chuck Atkins <chuck.atkins at kitware.com> wrote:
> I'm using Mesa in a "superbuild" scenario where CFLAGS and CXXFLAGS are set
> by a top level project that builds many subprojects. They typical settings
> for release builds with this is adding O3 to CFLAGS and CXXFLAGS, which in
> turn cause Mesa to build with O3.  I haven't noticed any runtime issues from
> this but default behavior of Mesa seems to be O2.  Are there any known
> issues using O3 for Mesa GLX / OSMesa with llvmpipe and swr?
>

None that I'm aware of, and we'd like to fix any issues if they exist.


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