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Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1f8b547..e6851c9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -4,6 +4,20 @@ 2004-12-18 Zdenek Dvorak <dvorakz@suse.cz> + PR tree-optimization/18800 + * 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. + +2004-12-18 Zdenek Dvorak <dvorakz@suse.cz> + PR rtl-optimization/19001 * loop-iv.c (iv_number_of_iterations): Record assumptions for loops with power of two step to 'infinite' field. |