• Milad Fa's avatar
    PPC/s390: [wasm] Fix 64-bit addressed loads on arm64 · 1835dec7
    Milad Fa authored
    Port 044a18ac
    
    Original Commit Message:
    
        The {LiftoffAssembler::Load} method already receives an {i64_offset}
        parameter which skips the UXTW (zero extension of 32-bit addresses) in
        the memory operand. The same needs to happen on stores.
    
        On 32-bit platforms, we cannot have addresses >=4GB anyway (they would
        be detected as OOB before reaching the point in question), so this is
        not a problem. On x64, all 32-bit registers are zero-extended already
        (which is debug-checked in the generated code), so this is also no
        problem (and we just ignore the additional parameter).
    
    R=clemensb@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
    BUG=
    LOG=N
    
    Change-Id: Ic531618875bf3b6abcf3741bcbe153e603d9f250
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3794647Reviewed-by: 's avatarClemens Backes <clemensb@chromium.org>
    Reviewed-by: 's avatarJunliang Yan <junyan@redhat.com>
    Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
    Cr-Commit-Position: refs/heads/main@{#82144}
    1835dec7
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