https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212
--- Comment #338 from Kazumoto Kojima <kkojima at gcc dot gnu.org> --- (In reply to Oleg Endo from comment #337) > (In reply to Kazumoto Kojima from comment #334) > > Created attachment 59216 [details] > > a patch to fix ICE in c#331 > > > > The patch preallocates R0 for those Sid memory patterns so as to shorten the > > live range of R0. Tested target libgcc and libstdc++v3 build and c > > testsuilte only. > > I guess at some points the mem loads will start to fail, too? > Hypothetically we will need to do this for every insn that has the R0 > restriction? Yes, I added movsf_ie_load_mem_index because I think that it will fail at some high R0 pressure situation. I have no idea for other cases, though. In any case, it may prove the need for the R0 specific pass.
