• Ross McIlroy's avatar
    [TurboProp] Don't try to rewire unreachable blocks to end. · f34771f7
    Ross McIlroy authored
    We can't consistently rewire the successor blocks of an unreachable node to
    disconnect them from the graph when we are trying to maintain the schedule.
    Instead simply leave the code there. As a future optimization we could add a
    proper scheduled dead code elimination phase which can deal with this.
    
    As a side-effect, one of the tests sees a int64 DeadValue, so add support for that
    in the instruction selector.
    
    BUG=chromium:1083272,chromium:1083763,chromium:1084953,v8:9684
    
    Change-Id: I69a6feaeef4eae62110392e27ea848b28bccf787
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2209061
    Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
    Reviewed-by: 's avatarTobias Tebbi <tebbi@chromium.org>
    Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#67953}
    f34771f7
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