BlockListScanInfo(BlockList* blocks) : _info(new RegisterManager()), _had_call(false) {
for (int n = 0; n < blocks->length(); n++) {
BlockBegin* b = blocks->at(n);
if (b->lir() != NULL) {
traverse(b, b->lir()->instructions_list());
}
// Registers may be used to hold the value
// on the top of stack so check for that.
check_stack(b->state());
check_stack(b->end()->state());
}
if (_had_call) {
for (int i = 0; i < FrameMap::nof_caller_save_cpu_regs; i++) {
_info->lock(FrameMap::caller_save_cpu_reg_at(i)->as_rinfo());
}
}
}
