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220929c067
Add some bounds checking to ssa_block_ranges, and privatize the ranges block cache and global cache, adding API points for accessing them. * gimple-range-cache.h (block_range_cache): Add new entry point. (ranger_cache): Privatize global abnd block cache members. * gimple-range-cache.cc (ssa_block_ranges::set_bb_range): Add bounds check. (ssa_block_ranges::set_bb_varying): Ditto. (ssa_block_ranges::get_bb_range): Ditto. (ssa_block_ranges::bb_range_p): Ditto. (block_range_cache::get_block_ranges): Fix formatting. (block_range_cache::query_block_ranges): New. (block_range_cache::get_bb_range): Use Query_block_ranges. (block_range_cache::bb_range_p): Ditto. (ranger_cache::dump): New. (ranger_cache::get_global_range): New. (ranger_cache::set_global_range): New. * gimple-range.cc (gimple_ranger::range_of_expr): Use new API. (gimple_ranger::range_of_stmt): Ditto. (gimple_ranger::export_global_ranges): Ditto. (gimple_ranger::dump): Ditto.
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