https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96058
--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #2) > Multi delta should be able to reduce this. Normally reduce which .o files > are needed and then reduce the .ii files that needed to produce the .o files > is the way to reduce this ... I know how to make a reduction of a LTO test-case, but WPA and LTRANS compilation takes 1 hour. It's waste of time doing such a reduction.