On 2015.07.15 at 17:44 +0200, Dilyan Palauzov wrote: > Hello, > > to my understanding -flto is passed during the generation of object > files and GIMPLE, but not to the linker / or linker plugin/. In > particular, with -fno-fat-lto-objects the linker(-plugin) has to > conclude that it has to make LTO. > > The documentation about -flto in 4.9.3 says, that it shall be provided > at link-time, but GCC can automatically deduce it, if any .o file was > compiled with -flto. > > Question: > Has the N in -flto=N only effect, if it is explicitly provided to gcc > at link time? Yes. -- Markus
