(In reply to Kenneth Graunke from comment #0)
> KHR-GL45.enhanced_layouts.varying_location_aliasing_with_mixed_types
> KHR-GL45.enhanced_layouts.varying_location_aliasing_with_mixed_interpolation
> KHR-GL45.enhanced_layouts.varying_location_aliasing_with_mixed_auxiliary_storage
> 
> all fail, at least on i965.  Ilia wrote a fix:
> 
> https://patchwork.freedesktop.org/patch/175959/
> 
> but Tim had a bunch of review feedback that needs to be addressed, and
> Ilia's out of time to work on this.  Someone else may want to pick it up.

all three tests also fail on Nouveau. So it could be, that I will work on this sooner or later. Will add it to my todo list with no guarantee when I can actually start to work on it. At some point next month or later, depending on whatever comes up and how much time I will have for CTS stuff.

Seem to be passing, probably fixed by

commit ab40acb45341d8cea011ba7330626ffc6e3238ad
Author: Iago Toral Quiroga <itoral@igalia.com>
Date:   Thu Oct 19 16:33:49 2017 +0200

    glsl/linker: outputs in the same location must share auxiliary storage
    
    From ARB_enhanced_layouts:
    
    "[...]when location aliasing, the aliases sharing the location
      must have the same underlying numerical type (floating-point or
      integer) and the same auxiliary storage and
      interpolation qualification.[...]"
    
    Add code to the linker to validate that aliased locations do
    have the same aux storage.
    
    Fixes:
    KHR-GL45.enhanced_layouts.varying_location_aliasing_with_mixed_auxiliary_storage
    
    Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
    Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

commit 0b565f715d24d74d844f0708e3ed17ad1ee14faf
Author: Iago Toral Quiroga <itoral@igalia.com>
Date:   Thu Oct 19 16:13:21 2017 +0200

    glsl/linker: outputs in the same location must share interpolation
    
    From ARB_enhanced_layouts:
    
    "[...]when location aliasing, the aliases sharing the location
     must have the same underlying numerical type (floating-point or
     integer) and the same auxiliary storage and
     interpolation qualification.[...]"
    
    Add code to the linker to validate that aliased locations do
    have the same interpolation.
    
    Fixes:
    KHR-GL45.enhanced_layouts.varying_location_aliasing_with_mixed_interpolation
    
    Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>