> The most isolated patch I can come up with, especially since we ought to > fix this in 4.8 branch as well, is to only allow expansion of wide int > modes to const_int when they're positive. > > Thoughts?
That's a fairly dangerous hack in my opinion, in particular this breaks the uniqueness of representation of -1 as constm1_rtx. Can't we find a really contained hack instead, especially if we want to backport it to 4.8? -- Eric Botcazou
