• Santiago Aboy Solanes's avatar
    [ptr-compr] Specialize CompressedSigned -> Word32 conversion · bda32bcb
    Santiago Aboy Solanes authored
    This CL aims to address the regressions that we saw in Octane 2.1,
    particularly in the DeltaBlue test.
    
    This CL brings a 5% improvement in said test by doing
    CompressedSigned -> Word32 conversion (instead of
    CompressedSigned -> TaggedSigned -> Word32).
    
    There seems to be room for optimizations doing more specialized conversions
    regarding representation changes.
    
    Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
    Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
    Bug: v8:7703
    Change-Id: I24e5b6c06436fdda9fa6a1ac4699dc55c3d67abd
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1684075
    Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
    Reviewed-by: 's avatarSigurd Schneider <sigurds@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#62557}
    bda32bcb
simplified-operator.cc 72.4 KB