https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68763
--- Comment #21 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Sun Jan 31 14:53:26 2016 New Revision: 233020 URL: https://gcc.gnu.org/viewcvs?rev=233020&root=gcc&view=rev Log: PR c++/68763 * tree.c (strip_typedefs) [FUNCTION_TYPE]: Avoid building a new function type if nothing is changing. Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/tree.c