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The following removes the VF determining step from non-SLP stmts. For now we keep setting STMT_VINFO_VECTYPE for all stmts, there are too many places to fix, including some more complicated ones, so this is defered for a followup. Along this removes vect_update_vf_for_slp, merging the check for present hybrid SLP stmts to vect_detect_hybrid_slp and fail analysis early. This also removes to essentially duplicate this check in the stmt walk of vect_analyze_loop_operations. Getting rid of that, and performing some other checks earlier is also defered to a followup. * tree-vect-loop.cc (vect_determine_vf_for_stmt_1): Rename to ... (vect_determine_vectype_for_stmt_1): ... this and only set STMT_VINFO_VECTYPE. Fail for single-element vector types. (vect_determine_vf_for_stmt): Rename to ... (vect_determine_vectype_for_stmt): ... this and only set STMT_VINFO_VECTYPE. Fail for single-element vector types. (vect_determine_vectorization_factor): Rename to ... (vect_set_stmts_vectype): ... this and only set STMT_VINFO_VECTYPE. (vect_update_vf_for_slp): Remove. (vect_analyze_loop_operations): Remove walk over stmts. (vect_analyze_loop_2): Call vect_set_stmts_vectype instead of vect_determine_vectorization_factor. Set vectorization factor from LOOP_VINFO_SLP_UNROLLING_FACTOR. Fail if vect_detect_hybrid_slp detects hybrid stmts or when vect_make_slp_decision finds nothing to SLP. * tree-vect-slp.cc (vect_detect_hybrid_slp): Move check whether we have any hybrid stmts here from vect_update_vf_for_slp * tree-vect-stmts.cc (vect_analyze_stmt): Remove loop over stmts. * tree-vectorizer.h (vect_detect_hybrid_slp): Update.
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