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[FMV][AArch64] Don't optimize backward compatible features in resolver. #90928

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merged 1 commit into from
May 3, 2024

Commits on May 3, 2024

  1. [FMV][AArch64] Don't optimize backward compatible features in resolver.

    For arch64 features, such as Branch Target Identification or MTE (Memory
    Tagging Extension), compatible with targets that lack their support we
    may encounter scenarios where a binary compiled with MTE for example is
    executed on both MTE and non-MTE hardware and we still need to detect at
    runtime whether the MTE feature is available to choose the appropriate
    function version.
    So, we cannot optimize the function multi versioning resolver by removing
    checks for these features enabled for the target during compilation.
    ilinpv committed May 3, 2024
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