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With no equivalences, the use_equiv_p argument in various methods in simplify_using_ranges is always false. This means we can remove all calls to compare_names, along with the function. gcc/ChangeLog: * vr-values.cc (simplify_using_ranges::compare_names): Remove. (vrp_evaluate_conditional_warnv_with_ops): Remove call to compare_names. (simplify_using_ranges::vrp_visit_cond_stmt): Remove use_equiv_p argument to vrp_evaluate_conditional_warnv_with_ops. * vr-values.h (class simplify_using_ranges): Remove compare_names. Remove use_equiv_p to vrp_evaluate_conditional_warnv_with_ops.
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