[Bug 101484] [bisected] Steam fails to render content, if mesa is compiled with -O2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101484

Gregor Münch <gr.muench at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[bisected, SI] Steam fails  |[bisected] Steam fails to
                   |to render content           |render content, if mesa is
                   |                            |compiled with -O2

--- Comment #5 from Gregor Münch <gr.muench at gmail.com> ---
Ive tested this now, and again its a compiler flags issue.
Arch standard clfags are:
CFLAGS="-march=native -O2 -pipe -fstack-protector-strong"

Looks like "-O2" is already too much. Setting this to -O1 fixes the problem.
This is a very nasty issue. However, -02 is considered "safe" so the issue
should probably fixed in mesa.

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