[Bug 1943818] Re: mesa built with -O3 on ppc64el has broken EGL

[Frank Heimes]

** Also affects: ubuntu-power-systems
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1943818

Title:
  mesa built with -O3 on ppc64el has broken EGL

Status in Mesa:
  Unknown
Status in The Ubuntu-power-systems project:
  New
Status in gcc-11 package in Ubuntu:
  New
Status in mesa package in Ubuntu:
  New

Bug description:
  If mesa is built with -O3 then EGL will fail with:

  libEGL warning: DRI2: failed to create any config

  this can be easily reproduced by building libepoxy which then runs a
  series of tests.

  The same is fine on amd64, and also ppc64el is fine with gcc-10 and
  -O3.

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