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[PATCH/AARCH64] Remove index from AARCH64_EXTRA_TUNING_OPTION


Just like the patch for AARCH64_FUSION_PAIR, this is a patch for
AARCH64_EXTRA_TUNING_OPTION.  Note I tested this patch on top of the
patch for AARCH64_EXTRA_TUNING_OPTION.


    Remove index from AARCH64_FUSION_PAIR

    Instead of doing an explict index in aarch64-fusion-pairs.def, we
    should have an enum which does the index instead.  This allows
    you to add/remove them without worrying about the order being
    correct and having holes or worry about merge conficts.

    OK? Bootstrapped and tested on aarch64-linux-gnu with no regressions.

    ChangeLog:
    * aarch64-fusion-pairs.def: Remove all index to AARCH64_FUSION_PAIR.
    * config/aarch64/aarch64-protos.h (aarch64_fusion_pairs_index): New enum.
    (aarch64_fusion_pairs): Base the shifted value on the index instead
    of the argument to AARCH64_FUSION_PAIR.
    * config/aarch64/aarch64.c: Remove the last argument to AARCH64_FUSION_PAIR.

Attachment: tuning.diff.txt
Description: Text document


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