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| author | Jan Hubicka <jh@suse.cz> | 2007-03-14 02:26:00 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2007-03-14 01:26:00 +0000 |
| commit | 4cdb798f6c9b2bb7090f9fa8101da6e34bd2e569 (patch) | |
| tree | 28d05e9c63fc6bf9660113e9855dadadbcac190b /gcc | |
| parent | b3ce5b6ed7924967c74d161950038d5eb044273e (diff) | |
| download | gcc-4cdb798f6c9b2bb7090f9fa8101da6e34bd2e569.zip gcc-4cdb798f6c9b2bb7090f9fa8101da6e34bd2e569.tar.gz gcc-4cdb798f6c9b2bb7090f9fa8101da6e34bd2e569.tar.bz2 | |
ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes...
* ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes,
when profile esitmate is present, calls with very low frequency are
cold.
From-SVN: r122898
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/ipa-inline.c | 9 |
2 files changed, 15 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1a40c6f..b90b689 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-03-13 Jan Hubicka <jh@suse.cz> + + * ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes, + when profile esitmate is present, calls with very low frequency are + cold. + 2007-03-13 Zdenek Dvorak <dvorakz@suse.cz> PR tree-optimization/30730 diff --git a/gcc/ipa-inline.c b/gcc/ipa-inline.c index 67ca5fd..04306aa 100644 --- a/gcc/ipa-inline.c +++ b/gcc/ipa-inline.c @@ -472,6 +472,15 @@ cgraph_maybe_hot_edge_p (struct cgraph_edge *edge) && (edge->count <= profile_info->sum_max / PARAM_VALUE (HOT_BB_COUNT_FRACTION))) return false; + if (lookup_attribute ("cold", DECL_ATTRIBUTES (edge->callee->decl)) + || lookup_attribute ("cold", DECL_ATTRIBUTES (edge->caller->decl))) + return false; + if (lookup_attribute ("hot", DECL_ATTRIBUTES (edge->caller->decl))) + return true; + if (flag_guess_branch_prob + && edge->frequency < (CGRAPH_FREQ_MAX + / PARAM_VALUE (HOT_BB_FREQUENCY_FRACTION))) + return false; return true; } |