[Bug rtl-optimization/50176] [4.7 Regression] 4.7 generates spill-fill dealing with char->int conversion

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50176

--- Comment #13 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-01-11 
09:13:54 UTC ---
> Yeah, it's a bit unfortunate that combines behavior depends on the
> insn scheduling ...

We do have a long-range, albeit limited, forward combining (fwprop) though.