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Add an alternative update_range_info method which marks the SSA_NAME as "to be recalcualted" the next time it is used. * gimple-range-cache.cc (ranger_cache::ranger_cache): Allocate bitmap. (ranger_cache::~ranger_cache): Free bitmap. (ranger_cache::mark_stale): New. (ranger_cache::get_global_range): Check if NAME is marked stale. * gimple-range-cache.h (ranger_cache::mark_stale): New. * gimple-range.cc (gimple_ranger::update_range_info): New variant. * gimple-range.h (update_range_info): New prototype. * gimple.h (gimple_set_modified): Call update_range_info. * value-query.cc (range_query::update_range_info): New variant. * value-query.h (range_query::update_range_info): New prototype.
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