9df0772d50
The following massages the GIMPLE matching way of handling scan stores to work with single-lane SLP. I do not fully understand all the cases that can happen and the stmt matching at vectorizable_store time is less than ideal - but the following gets me all the testcases to pass with and without forced SLP. Long term we want to perform the matching at SLP discovery time, properly chaining the various SLP instances the current state ends up with. PR tree-optimization/116974 * tree-vect-stmts.cc (check_scan_store): Pass in the SLP node instead of just a flag. Allow single-lane scan stores. (vectorizable_store): Adjust. * tree-vect-loop.cc (vect_analyze_loop_2): Empty scan_map before re-trying. |
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