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2019-09-26 Richard Biener <rguenther@suse.de> * tree-vect-loop.c (vect_analyze_loop_operations): Also call vectorizable_reduction for vect_double_reduction_def. (vect_transform_loop): Likewise. (vect_create_epilog_for_reduction): Move double-reduction PHI creation and preheader argument setting of PHIs ... (vectorizable_reduction): ... here. Also process vect_double_reduction_def PHIs, creating the vectorized PHI nodes, remembering the scalar adjustment computed for the epilogue in STMT_VINFO_REDUC_EPILOGUE_ADJUSTMENT. Remember the original reduction code in STMT_VINFO_REDUC_CODE. * tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize STMT_VINFO_REDUC_CODE. * tree-vectorizer.h (_stmt_vec_info::reduc_epilogue_adjustment): New. (_stmt_vec_info::reduc_code): Likewise. (STMT_VINFO_REDUC_EPILOGUE_ADJUSTMENT): Likewise. (STMT_VINFO_REDUC_CODE): Likewise. From-SVN: r276150
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