• Ross McIlroy's avatar
    Revert "[Turbofan] Merged the OSR phase into the graph building phase." · 5d0a4327
    Ross McIlroy authored
    This reverts commit 69c8f16d.
    
    Reason for revert: Causing crashes on Clusterfuzz - http://crbug.com/747154
    
    BUG=chromium:747154
    
    Original change's description:
    > [Turbofan] Merged the OSR phase into the graph building phase.
    > 
    > Now the OSR phase is only used when OSRing from the ast graph builder.
    > When OSRing from Turbofan, the implementation is now in the graph
    > building phase, at the beginning of the VisitBytecode function.
    > We are no longer generating any OSRLoopEntry or OSRNormalEntry nodes,
    > nor nodes for the possible code of the OSRed function which is before
    > the OSRed loops.
    > 
    > The trimming and reducing of the OSR phase is not done either. This
    > change in the way the way the OSR is done enabled to remove the
    > workaround to the bug mentioned below.
    > 
    > Bug: v8:6112
    > Bug: v8:6518
    > Change-Id: I1c9231810b923486d55ea618d550d981d695d797
    > Reviewed-on: https://chromium-review.googlesource.com/543042
    > Commit-Queue: Alexandre Talon <alexandret@google.com>
    > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
    > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#46801}
    
    TBR=rmcilroy@chromium.org,mstarzinger@chromium.org,leszeks@chromium.org,alexandret@google.com
    
    Change-Id: Ifa9bf5d86e888a47cad7fb10446b36fda5029604
    No-Presubmit: true
    No-Tree-Checks: true
    No-Try: true
    Bug: v8:6112, v8:6518
    Reviewed-on: https://chromium-review.googlesource.com/581288Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
    Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#46817}
    5d0a4327
pipeline.cc 79.7 KB