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Re: [patch] for PR 18800


On Mon, Dec 13, 2004 at 05:49:14PM +0100, Zdenek Dvorak wrote:
>         * params.def (PARAM_IV_ALWAYS_PRUNE_CAND_SET_BOUND): New parameter.
>         * tree-ssa-loop-ivopts.c (struct iv_ca): Add n_cands field.
>         (ALWAYS_PRUNE_CAND_SET_BOUND): New macro.
>         (iv_ca_set_no_cp, iv_ca_set_cp, iv_ca_new): Update n_cands field.
>         (iv_ca_delta_join, iv_ca_delta_reverse, iv_ca_n_cands, iv_ca_prune):
>         New functions.
>         (iv_ca_extend): Return number of candidates in the set.
>         (try_add_cand_for): Add argument to iv_ca_extend calls.
>         (try_improve_iv_set): Use iv_ca_prune.
>         * doc/invoke.texi (iv-always-prune-cand-set-bound): Document.

Ok.


r~


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