diff -r 1f805a0c20e5 -r 13ffa40a2f0a hotspot/src/share/vm/c1/c1_GraphBuilder.cpp --- a/hotspot/src/share/vm/c1/c1_GraphBuilder.cpp Sat Mar 05 11:02:04 2011 -0800 +++ b/hotspot/src/share/vm/c1/c1_GraphBuilder.cpp Sun Mar 06 22:09:23 2011 -0800 @@ -1456,12 +1456,12 @@ BasicType field_type = field->type()->basic_type(); ValueType* type = as_ValueType(field_type); // call will_link again to determine if the field is valid. - const bool is_loaded = holder->is_loaded() && - field->will_link(method()->holder(), code); - const bool is_initialized = is_loaded && holder->is_initialized(); + const bool needs_patching = !holder->is_loaded() || + !field->will_link(method()->holder(), code) || + PatchALot; ValueStack* state_before = NULL; - if (!is_initialized || PatchALot) { + if (!holder->is_initialized() || needs_patching) { // save state before instruction for debug info when // deoptimization happens during patching state_before = copy_state_before(); @@ -1469,10 +1469,6 @@ Value obj = NULL; if (code == Bytecodes::_getstatic || code == Bytecodes::_putstatic) { - // commoning of class constants should only occur if the class is - // fully initialized and resolved in this constant pool. The will_link test - // above essentially checks if this class is resolved in this constant pool - // so, the is_initialized flag should be suffiect. if (state_before != NULL) { // build a patching constant obj = new Constant(new ClassConstant(holder), state_before); @@ -1482,7 +1478,7 @@ } - const int offset = is_loaded ? field->offset() : -1; + const int offset = !needs_patching ? field->offset() : -1; switch (code) { case Bytecodes::_getstatic: { // check for compile-time constants, i.e., initialized static final fields @@ -1509,7 +1505,7 @@ state_before = copy_state_for_exception(); } push(type, append(new LoadField(append(obj), offset, field, true, - state_before, is_loaded, is_initialized))); + state_before, needs_patching))); } break; } @@ -1518,7 +1514,7 @@ if (state_before == NULL) { state_before = copy_state_for_exception(); } - append(new StoreField(append(obj), offset, field, val, true, state_before, is_loaded, is_initialized)); + append(new StoreField(append(obj), offset, field, val, true, state_before, needs_patching)); } break; case Bytecodes::_getfield : @@ -1526,8 +1522,8 @@ if (state_before == NULL) { state_before = copy_state_for_exception(); } - LoadField* load = new LoadField(apop(), offset, field, false, state_before, is_loaded, true); - Value replacement = is_loaded ? _memory->load(load) : load; + LoadField* load = new LoadField(apop(), offset, field, false, state_before, needs_patching); + Value replacement = !needs_patching ? _memory->load(load) : load; if (replacement != load) { assert(replacement->is_linked() || !replacement->can_be_linked(), "should already by linked"); push(type, replacement); @@ -1542,8 +1538,8 @@ if (state_before == NULL) { state_before = copy_state_for_exception(); } - StoreField* store = new StoreField(apop(), offset, field, val, false, state_before, is_loaded, true); - if (is_loaded) store = _memory->store(store); + StoreField* store = new StoreField(apop(), offset, field, val, false, state_before, needs_patching); + if (!needs_patching) store = _memory->store(store); if (store != NULL) { append(store); }