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| author | Richard Biener <rguenther@suse.de> | 2017-09-18 10:10:31 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-09-18 10:10:31 +0000 |
| commit | 6b1ce94d31733df9b0055b9e1934704d21973d77 (patch) | |
| tree | 99772a700a80b189069d431496a8045d2a11bdb3 /gcc/tree-vect-loop.c | |
| parent | 2eda24e95cb9232031a0b7e0be3ca109cfd86a2d (diff) | |
| download | gcc-6b1ce94d31733df9b0055b9e1934704d21973d77.zip gcc-6b1ce94d31733df9b0055b9e1934704d21973d77.tar.gz gcc-6b1ce94d31733df9b0055b9e1934704d21973d77.tar.bz2 | |
re PR tree-optimization/82220 (SPEC CPU2006 482.sphinx3 ~10% performance regression with trunk@250416)
2017-09-18 Richard Biener <rguenther@suse.de>
PR tree-optimization/82220
* tree-vect-loop.c (vect_estimate_min_profitable_iters): Exclude
epilogue niters from the min_profitable_iters compute.
From-SVN: r252917
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index c7cc79f..82b6629 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -3663,8 +3663,8 @@ vect_estimate_min_profitable_iters (loop_vec_info loop_vinfo, 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 (min_profitable_iters < (vf + peel_iters_prologue)) + min_profitable_iters = vf + peel_iters_prologue; if (dump_enabled_p ()) dump_printf_loc (MSG_NOTE, vect_location, |