https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91386
--- Comment #14 from Wilco <wilco at gcc dot gnu.org> --- (In reply to Martin Liška from comment #13) > > > > The key question is how does one dump rtl with -flto? It doesn't work at > > all, making debugging this difficult... > > It does, look: > > marxin@marxinbox:/tmp> gcc -c main.c -flto > marxin@marxinbox:/tmp> gcc main.o -flto -o xxxxxxxx Ah right, so you need an explicit -o<file>, otherwise it doesn't write the dump files in the current directory...
