http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
--- Comment #128 from Jan Hubicka <hubicka at ucw dot cz> 2012-05-11 08:52:50 UTC --- > Well - the obvious possibly "slow" part of uniquify nodes is that it walks > all fields of record/union types. So - do you have a more detailed profile > of uniquify_nodes? No, I will try to generate annotated sources then. I am bit puzzled by this - looking at the stuff there seems nothing inherently expensive in it. Honza