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| author | Eugene Rozenfeld <erozen@microsoft.com> | 2023-09-15 18:12:47 -0700 |
|---|---|---|
| committer | Eugene Rozenfeld <erozen@microsoft.com> | 2023-10-09 13:07:11 -0700 |
| commit | cc50337215535e17f1caa5eae34eaa650223c96b (patch) | |
| tree | 79d91b5608276597792b61f7186d77796128a66a /gcc/tree-vect-loop-manip.cc | |
| parent | 08d0f840dc7ad212ab75d094373b01cbfc004e67 (diff) | |
| download | gcc-cc50337215535e17f1caa5eae34eaa650223c96b.zip gcc-cc50337215535e17f1caa5eae34eaa650223c96b.tar.gz gcc-cc50337215535e17f1caa5eae34eaa650223c96b.tar.bz2 | |
Fixes for profile count/probability maintenance
Verifier checks have recently been strengthened to check that
all counts and probabilities are initialized. The checks fired
during autoprofiledbootstrap build and this patch fixes it.
Tested on x86_64-pc-linux-gnu.
gcc/ChangeLog:
* auto-profile.cc (afdo_calculate_branch_prob): Fix count comparisons
* tree-vect-loop-manip.cc (vect_do_peeling): Guard against zero count
when scaling loop profile
Diffstat (limited to 'gcc/tree-vect-loop-manip.cc')
| -rw-r--r-- | gcc/tree-vect-loop-manip.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vect-loop-manip.cc b/gcc/tree-vect-loop-manip.cc index 0964190..2608c28 100644 --- a/gcc/tree-vect-loop-manip.cc +++ b/gcc/tree-vect-loop-manip.cc @@ -3335,7 +3335,7 @@ vect_do_peeling (loop_vec_info loop_vinfo, tree niters, tree nitersm1, free (bbs); free (original_bbs); } - else + else if (old_count.nonzero_p ()) scale_loop_profile (epilog, guard_to->count.probability_in (old_count), -1); /* Only need to handle basic block before epilog loop if it's not |