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[regression] [llvmpipe] crash in lp_rast.c:lp_rast_shade_quads_mask

Used versions:

  • mesa 20.0.0
  • blender 2.82
  • LLVM 9.0.0

Steps to reproduce:

  1. Run blender with LIBGL_ALWAYS_SOFTWARE.
  2. Set viewport shading to material preview.
  3. Blender will crash in lp_rast.c:lp_rast_shade_quads_mask:454. Probably crash occurs in LLVM generated code.

Issue is observed in Linux x86_64, Haiku x86 and x86_64. Issue is not observed in mesa 19.3.3.

Edited by X512
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