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* gimple-ssa-evrp-analyze.h (class evrp_range_analyzer): Add m_update_global_ranges member. Add corresponding argument to ctor. * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::evrp_range_analyzer): Add new argument and initialize m_update_global_ranges. (evrp_range_analyzer::set_ssa_range_info): Assert that we are updating global ranges. (evrp_range_analyzer::record_ranges_from_incoming_edge): Only update global ranges if explicitly requested. (evrp_range_analyzer::record_ranges_from_phis): Similarly. (evrp_range_analyzer::record_ranges_from_stmt): Similarly. * gimple-ssa-evrp.c (evrp_dom_walker): Pass new argument to evrp_range_analyzer ctor. * gimple-ssa-sprintf.c (sprintf_dom_walker): Similarly. * tree-ssa-dom.c (dom_opt_dom_walker): Similarly. * gcc.c-torture/builtins/strnlen.x: New file to filter -Og from options to test. From-SVN: r266897
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