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Diffstat (limited to 'gcc/tree-vect-data-refs.c')
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 220dc30..5a30314 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -480,9 +480,15 @@ vect_analyze_data_ref_dependences (loop_vec_info loop_vinfo, int *max_vf) LOOP_VINFO_LOOP_NEST (loop_vinfo), true)) return false; - FOR_EACH_VEC_ELT (LOOP_VINFO_DDRS (loop_vinfo), i, ddr) - if (vect_analyze_data_ref_dependence (ddr, loop_vinfo, max_vf)) - return false; + /* For epilogues we either have no aliases or alias versioning + was applied to original loop. Therefore we may just get max_vf + using VF of original loop. */ + if (LOOP_VINFO_EPILOGUE_P (loop_vinfo)) + *max_vf = LOOP_VINFO_ORIG_VECT_FACTOR (loop_vinfo); + else + FOR_EACH_VEC_ELT (LOOP_VINFO_DDRS (loop_vinfo), i, ddr) + if (vect_analyze_data_ref_dependence (ddr, loop_vinfo, max_vf)) + return false; return true; } |