[Mesa-dev] [Bug 110216] radv: Segfault when compiling compute shaders from Assassin's Creed Odyssey (regression, bisected)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110216

Timothy Arceri <t_arceri at yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #2 from Timothy Arceri <t_arceri at yahoo.com.au> ---
Fixed by:

commit 427a6fee439b2df96edc813c56572169385772a6
Author: Timothy Arceri <tarceri at itsqueeze.com>
Date:   Tue Mar 19 12:09:36 2019 +1100

    nir: only override previous alu during loop analysis if supported

    Users of this function expect alu to be a supported comparision
    if the induction variable is not NULL. Since we attempt to
    override the return values if the first limit is not a const, we
    must make sure we are dealing with a valid comparision before
    overriding the alu instruction.

    Fixes an unreachable in inverse_comparison() with the game
    Assasins Creed Odyssey.

    Fixes: 3235a942c16b ("nir: find induction/limit vars in iand instructions")

    Acked-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110216

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