https://bugs.freedesktop.org/show_bug.cgi?id=110884

--- Comment #2 from Thiago Macieira <thi...@kde.org> ---
Disassembly:

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

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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