1d778697b3
After the previous patch, it seems more natural to apply the PARAM_SLP_MAX_INSNS_IN_BB threshold as soon as we know what the region is, rather than delaying it to vect_slp_analyze_bb_1. (But rather than carve out the biggest region possible and then reject it, wouldn't it be better to stop when the region gets too big, to at least give us a chance of vectorising something?) It also seems more natural for vect_slp_bb_region to create the bb_vec_info itself rather than (a) having to pass bits of data down for the initialisation and (b) forcing vect_slp_analyze_bb_1 to free on every failure return. 2019-10-20 Richard Sandiford <richard.sandiford@arm.com> gcc/ * tree-vect-slp.c (vect_slp_analyze_bb_1): Take a bb_vec_info and return a boolean success value. Move the allocation and initialization of the bb_vec_info to... (vect_slp_bb_region): ...here. Update call accordingly. (vect_slp_bb): Apply PARAM_SLP_MAX_INSNS_IN_BB here rather than in vect_slp_analyze_bb_1. From-SVN: r277211 |
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