[Mesa-dev] [Bug 62357] New: llvmpipe: Fragment Shader with "return" in main causes back output

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=62357

          Priority: medium
            Bug ID: 62357
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: llvmpipe: Fragment Shader with "return" in main causes
                    back output
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: drago01 at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Other
           Product: Mesa

We used a fragment shader in gnome-shell where we bail out early using
 if (...)
   return;
inside main() ... the resulting color ended up being black even though the
color has been set to a value before the if statement.

See https://bugzilla.gnome.org/show_bug.cgi?id=695607 for details.

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