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split_constant_offset currently gives up looking at ranges when dealing with possibly wrapping operations for looking through conversions when the downstream analysis does not yield a SSA name. That's overly conservative and we have a nice helper that can deal with arbitrary expresssions. Use that. This helps data reference group analysis so the testcase is fully SLP vectorized, making use of the whole-function "BB" vectorization capabilities we now have. 2020-12-04 Richard Biener <rguenther@suse.de> PR tree-optimization/98137 * tree-data-ref.c (split_constant_offset_1): Use determine_value_range instead of get_range_info to handle arbitrary expressions. * gcc.dg/vect/bb-slp-pr98137.c: New testcase.
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