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Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 7bae416..64d8699 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -3702,8 +3702,9 @@ vect_estimate_min_profitable_iters (loop_vec_info loop_vinfo, " Calculated minimum iters for profitability: %d\n", min_profitable_iters); - min_profitable_iters = - min_profitable_iters < vf ? vf : min_profitable_iters; + /* We want the vectorized loop to execute at least once. */ + if (min_profitable_iters < (vf + peel_iters_prologue + peel_iters_epilogue)) + min_profitable_iters = vf + peel_iters_prologue + peel_iters_epilogue; if (dump_enabled_p ()) dump_printf_loc (MSG_NOTE, vect_location, |