[Bug 91719] [SNB, HSW, BYT] dEQP regressions associated with using NIR for vertex shaders

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91719

            Bug ID: 91719
           Summary: [SNB,HSW,BYT] dEQP regressions associated with using
                    NIR for vertex shaders
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Mesa bbf8291 caused the following regressions:

functional.shaders.loops.do_while_dynamic_iterations.vector_counter_vertex
functional.shaders.loops.for_dynamic_iterations.vector_counter_vertex
functional.shaders.loops.while_dynamic_iterations.vector_counter_vertex

Both gles2 and gles3 variants regressed when NIR was enabled.

BDW did not encounter these regressions.

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