summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorhubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>2007-03-14 01:26:00 +0000
committerhubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>2007-03-14 01:26:00 +0000
commit24bc216e687db2ac9c74a3c421e6b085e6705825 (patch)
tree28d05e9c63fc6bf9660113e9855dadadbcac190b
parenta463eaead43052f98075eb210b931bd0e90b9249 (diff)
downloadgcc-24bc216e687db2ac9c74a3c421e6b085e6705825.tar.gz
* 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@122898 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/ipa-inline.c9
2 files changed, 15 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1a40c6f846e..b90b689e837 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 67ca5fdee24..04306aaa7e0 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;
}