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This avoids cases of PHI node vectorization that just causes us to insert vector CTORs inside loops for values only required outside of the loop. 2021-01-27 Richard Biener <rguenther@suse.de> PR tree-optimization/98854 * tree-vect-slp.c (vect_build_slp_tree_2): Also build PHIs from scalars when the number of CTORs matches the number of children. * gcc.dg/vect/bb-slp-pr98854.c: New testcase. |
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