void LIRGenerator::trace_block_entry(BlockBegin* block) {
  store_stack_parameter(LIR_OprFact::intConst(block->block_id()), in_ByteSize(0));
  LIR_OprList* args = new LIR_OprList();
  address func = CAST_FROM_FN_PTR(address, Runtime1::trace_block_entry);
  __ call_runtime_leaf(func, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, args);
}
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