On 01/25/2013 08:35 PM, Kangkook Jee wrote: > As you can see from the above, -O1 option trigger the problem while -O0 > doesn't. > > Could you anyone tell me how to workaround this situation? Or which specific > optimization option causes the issue? It seems to happen when we're computing alias sets. GCC really should bail out when the CFG gets to be so huge. It's worth submitting a bug. Andrew.