• Tobias Tebbi's avatar
    Revert "Reland^5 "[turbofan] eagerly prune None types and deadness from the graph"" · c899637d
    Tobias Tebbi authored
    This reverts commit ac0661b3.
    
    Reason for revert: Clusterfuzz unhappy: chromium:783019 chromium:783035
    
    Original change's description:
    > Reland^5 "[turbofan] eagerly prune None types and deadness from the graph"
    >
    > This gives up on earlier attempts to interpret DeadValue as a signal of
    > unreachable code. This does not work because free-floating dead value
    > nodes, and even pure branch nodes that use them, can get scheduled so
    > early that they get reachable. Instead, we now eagerly remove branches
    > that use DeadValue in DeadCodeElimination and replace DeadValue inputs
    > to value phi nodes with dummy values.
    >
    > Reland of https://chromium-review.googlesource.com/715716
    >
    > Bug: chromium:741225 chromium:776256
    > Change-Id: I251efd507c967d4a8882ad8fd2fd96c4185781fe
    > Reviewed-on: https://chromium-review.googlesource.com/727893
    > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
    > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#49188}
    
    TBR=jarin@chromium.org,tebbi@chromium.org
    
    Bug: chromium:741225 chromium:776256 chromium:783019 chromium:783035
    Change-Id: I6a8fa3a08ce2824a858ae01817688e63ed1f442e
    Reviewed-on: https://chromium-review.googlesource.com/758770Reviewed-by: 's avatarTobias Tebbi <tebbi@chromium.org>
    Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#49262}
    c899637d
opcodes.h 27.7 KB