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| author | Jan Hubicka <hubicka@ucw.cz> | 2019-12-05 19:12:51 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2019-12-05 18:12:51 +0000 |
| commit | 34fbe3f0946f88828765184ed6581bda62cdf49f (patch) | |
| tree | 5a3bf82ae6bb92203c6e4922a5d694198595edc6 /gcc/ipa-cp.c | |
| parent | 8575d5925226a8f92ee644d6d59a2b1b93840d94 (diff) | |
cgraphclones.c (localize_profile): New function.
* cgraphclones.c (localize_profile): New function.
(cgraph_node::create_clone): Use it for partial profiles.
* common.opt (fprofile-partial-training): New flag.
* doc/invoke.texi (-fprofile-partial-training): Document.
* ipa-cp.c (update_profiling_info): For partial profiles do not
set function profile to zero.
* profile.c (compute_branch_probabilities): With partial profile
watch if edge count is zero and turn all probabilities to guessed.
(compute_branch_probabilities): For partial profiles do not apply
profile when entry count is zero.
* tree-profile.c (tree_profiling): Only do value_profile_transformations
when profile is read.
From-SVN: r279013
Diffstat (limited to 'gcc/ipa-cp.c')
| -rw-r--r-- | gcc/ipa-cp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c index 693c7a2fdc5..14064ae0034 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -4295,6 +4295,15 @@ update_profiling_info (struct cgraph_node *orig_node, remainder = orig_node_count.combine_with_ipa_count (orig_node_count.ipa () - new_sum.ipa ()); + + /* With partial train run we do not want to assume that original's + count is zero whenever we redurect all executed edges to clone. + Simply drop profile to local one in this case. */ + if (remainder.ipa_p () && !remainder.ipa ().nonzero_p () + && orig_node->count.ipa_p () && orig_node->count.ipa ().nonzero_p () + && flag_profile_partial_training) + remainder = remainder.guessed_local (); + new_sum = orig_node_count.combine_with_ipa_count (new_sum); new_node->count = new_sum; orig_node->count = remainder; |