[Mesa-dev] [Bug 111141] [REGRESSION] [BISECTED] [DXVK] 1-bit booleans and Elite Dangerous shader mis-optimization

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111141

            Bug ID: 111141
           Summary: [REGRESSION] [BISECTED] [DXVK] 1-bit booleans and
                    Elite Dangerous shader mis-optimization
           Product: Mesa
           Version: 19.0
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: s_j_newbury at yahoo.co.uk
        QA Contact: mesa-dev at lists.freedesktop.org

I've bisected a shader induced corruption issue to:

3b3081479163475f25b908008250d83c31716c34
nir/algebraic: Optimize 1-bit Booleans 

Everything renders normally prior to this commit, afterwards some textures
appear "posterized" and ambiently lit areas are highlighted in the wrong
colours.

I'll attach screenshots tomorrow.

I will provide any information on request/direction.

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