http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54710
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |WAITING Resolution|INVALID | --- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-27 09:09:59 UTC --- Can you provide absolute compile-times alongside source complexity (like the number of required template instantiations?). Also you are using the compiler default optimization settings which for CLANG is (IIRC) to do optimization and for GCC is to not do. You might want to try -O1 for both and/or explicit -O0 for both.