tree-ssa-forwprop.c (cfg_changed): New.
* tree-ssa-forwprop.c (cfg_changed): New. (tidy_after_forward_propagate_addr): New. (forward_propagate_addr_expr): Use it, and fold_stmt_inplace. (forward_propagate_addr_into_variable_array_index): Likewise. (tree_ssa_forward_propagate_single_use_vars): Cleanup cfg if edges were removed. From-SVN: r99935
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