[Bug 98664] Fragment shader while loop causes geometry corruption

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=98664

            Bug ID: 98664
           Summary: Fragment shader while loop causes geometry corruption
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: wallbraker@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 127870
  --> https://bugs.freedesktop.org/attachment.cgi?id=127870&action=edit
Fragment shader

The card is Radeon R9 390.

I have a fragment shader that seems to corrupt the geometry of the triangle. I
reduced that fragment shader a lot. The code for this is not easy to compile
and require a rather large dataset. You can reach me on IRC, nick Prf_Jakob.


$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD HAWAII (DRM 2.46.0 /
4.8.0-26-generic, LLVM 3.9.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 13.1.0-devel
(git-7bcb94b)
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 13.1.0-devel (git-7bcb94b)
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 13.1.0-devel (git-7bcb94b)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions:

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