On Sun, Nov 16, 2014 at 05:45:06PM +0900, Oleg Endo wrote: > When you commit those, could you please also add PR 59278 to the ChangeLog so > that the commit appears in bugzilla? After your patches are in, I'd like to > add some SH specific test cases (assuming that your patches fix PR 59278).
It doesn't fix this testcase. Here, recog_for_combine needs to add a clobber of T, but it thinks T is not dead. It doesn't say anything about that in the debug dump :-( Maybe the movrt_negc pattern shouldn't set T at all, just clobber it? Or reg_dead_at_p can be taught about "unused" notes. Segher