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comparison src/share/vm/opto/macro.cpp @ 1080:7c57aead6d3e

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6892658: C2 should optimize some stringbuilder patterns Reviewed-by: kvn, twisti
author never
date Thu, 12 Nov 2009 09:24:21 -0800
parents fc4be448891f
children f96a1a986f7b
comparison
equal deleted inserted replaced
1078:8e7adf982378 1080:7c57aead6d3e
910 910
911 if (!scalar_replacement(alloc, safepoints)) { 911 if (!scalar_replacement(alloc, safepoints)) {
912 return false; 912 return false;
913 } 913 }
914 914
915 CompileLog* log = C->log();
916 if (log != NULL) {
917 Node* klass = alloc->in(AllocateNode::KlassNode);
918 const TypeKlassPtr* tklass = _igvn.type(klass)->is_klassptr();
919 log->head("eliminate_allocation type='%d'",
920 log->identify(tklass->klass()));
921 JVMState* p = alloc->jvms();
922 while (p != NULL) {
923 log->elem("jvms bci='%d' method='%d'", p->bci(), log->identify(p->method()));
924 p = p->caller();
925 }
926 log->tail("eliminate_allocation");
927 }
928
915 process_users_of_allocation(alloc); 929 process_users_of_allocation(alloc);
916 930
917 #ifndef PRODUCT 931 #ifndef PRODUCT
918 if (PrintEliminateAllocations) { 932 if (PrintEliminateAllocations) {
919 if (alloc->is_AllocateArray()) 933 if (alloc->is_AllocateArray())
920 tty->print_cr("++++ Eliminated: %d AllocateArray", alloc->_idx); 934 tty->print_cr("++++ Eliminated: %d AllocateArray", alloc->_idx);
921 else 935 else
922 tty->print_cr("++++ Eliminated: %d Allocate", alloc->_idx); 936 tty->print_cr("++++ Eliminated: %d Allocate", alloc->_idx);
923 } 937 }
924 #endif 938 #endif
925 939
926 return true; 940 return true;
927 } 941 }
928 942
1637 if (next_edge) i++; 1651 if (next_edge) i++;
1638 } // for (uint i = 0; i < oldbox->outcnt();) 1652 } // for (uint i = 0; i < oldbox->outcnt();)
1639 } // if (!oldbox->is_eliminated()) 1653 } // if (!oldbox->is_eliminated())
1640 } // if (alock->is_Lock() && !lock->is_coarsened()) 1654 } // if (alock->is_Lock() && !lock->is_coarsened())
1641 1655
1656 CompileLog* log = C->log();
1657 if (log != NULL) {
1658 log->head("eliminate_lock lock='%d'",
1659 alock->is_Lock());
1660 JVMState* p = alock->jvms();
1661 while (p != NULL) {
1662 log->elem("jvms bci='%d' method='%d'", p->bci(), log->identify(p->method()));
1663 p = p->caller();
1664 }
1665 log->tail("eliminate_lock");
1666 }
1667
1642 #ifndef PRODUCT 1668 #ifndef PRODUCT
1643 if (PrintEliminateLocks) { 1669 if (PrintEliminateLocks) {
1644 if (alock->is_Lock()) { 1670 if (alock->is_Lock()) {
1645 tty->print_cr("++++ Eliminating: %d Lock", alock->_idx); 1671 tty->print_cr("++++ Eliminating: %d Lock", alock->_idx);
1646 } else { 1672 } else {