[Bug 100089] [regression] [bisected] Space Run rendering issues

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100089

Samuel Pitoiset <samuel.pitoiset at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Space Run rendering prolems |[regression] [bisected]
                   |                            |Space Run rendering issues

--- Comment #9 from Samuel Pitoiset <samuel.pitoiset at gmail.com> ---
After bisecting, the guilty is:

commit 3081264dbeb5c322456b1b6b9011745ab98982a1
Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
Date:   Sat Mar 11 00:29:27 2017 +0000

    [AMDGPU] Remove getBidirectionalReasonRank

    This method inverts the Reason field of a scheduling candidate.
    It does right comparison between RegCritical and RegExcess, but
    everything else is broken. In fact it can prefer less strong reason
    such as Weak over RegCritical because Weak > -RegCritical.

    The CandReason enum is properly sorted, so just remove artificial
    ranking.

    Differential Revision: https://reviews.llvm.org/D30557

    git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297536
91177308-0d34-0410-b5e6-96231b3b80d8

Presumably, it's a scheduling issue. The commit looks correct though.

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