• bmeurer's avatar
    [turbofan] Don't mix element accesses with incompatible representations. · d412cade
    bmeurer authored
    Due to speculative optimizations, the compiler can run into situations
    where it's asked perform impossible operations, like loading a tagged
    element as a float64 instead. All of this is guaranteed to be in dead
    code (unless there's a bug), but leads to confusion and violates
    assumptions in the compiler (that make perfect sense for code that is
    not dead). So teach LoadElimination not to mix up element accesses with
    incompatible representations.
    
    BUG=chromium:719479
    R=jarin@chromium.org
    
    Review-Url: https://codereview.chromium.org/2866233002
    Cr-Commit-Position: refs/heads/master@{#45185}
    d412cade
load-elimination.cc 39.7 KB