1.1 --- a/src/share/vm/opto/gcm.cpp Thu Mar 26 14:39:39 2009 -0700
1.2 +++ b/src/share/vm/opto/gcm.cpp Thu Mar 26 15:04:55 2009 -0700
1.3 @@ -1374,6 +1374,9 @@
1.4 _root_loop->_freq = 1.0;
1.5 _root_loop->scale_freq();
1.6
1.7 + // Save outmost loop frequency for LRG frequency threshold
1.8 + _outer_loop_freq = _root_loop->outer_loop_freq();
1.9 +
1.10 // force paths ending at uncommon traps to be infrequent
1.11 if (!C->do_freq_based_layout()) {
1.12 Block_List worklist;
1.13 @@ -1898,6 +1901,7 @@
1.14 // Do a top down traversal of loop tree (visit outer loops first.)
1.15 void CFGLoop::scale_freq() {
1.16 float loop_freq = _freq * trip_count();
1.17 + _freq = loop_freq;
1.18 for (int i = 0; i < _members.length(); i++) {
1.19 CFGElement* s = _members.at(i);
1.20 float block_freq = s->_freq * loop_freq;
1.21 @@ -1912,6 +1916,14 @@
1.22 }
1.23 }
1.24
1.25 +// Frequency of outer loop
1.26 +float CFGLoop::outer_loop_freq() const {
1.27 + if (_child != NULL) {
1.28 + return _child->_freq;
1.29 + }
1.30 + return _freq;
1.31 +}
1.32 +
1.33 #ifndef PRODUCT
1.34 //------------------------------dump_tree--------------------------------------
1.35 void CFGLoop::dump_tree() const {
