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* tree-flow-inline.h (gimple_var_anns): New function. (var_ann): Use hashtable for static functions. * tree-dfa.c (create_var_ann): Likewise. * tree-ssa.c (var_ann_eq, var_ann_hash): New functions. (init_tree_ssa): Initialize var anns. (delete_tree_ssa): Delete var anns; also clear out gimple_df. * tree-flow.h (struct static_var_ann_d): New structure. (gimple_df): Add var_anns. From-SVN: r120089
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