[Mesa-dev] [Bug 110884] can't start GDM when building mesa master branch with LTO

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Jun 11 01:54:50 UTC 2019


--- Comment #2 from Thiago Macieira <thiago at kde.org> ---

   0x00007ffff24cc389 <+489>:   xor    %edi,%edi
   0x00007ffff24cc38b <+491>:   movq   $0x0,0x10(%r12)
   0x00007ffff24cc394 <+500>:   callq  0x7ffff24a5b00

That's a constant null pointer being passed to lp_scene_begin_rasterization().

I believe this is a violation of strict aliasing. The compiler is correct. The
code in llvmpipe is buggy.

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