[Bug tree-optimization/51275] CLOBBERS can be optimized if they are right before the return (or RESX)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51275

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-05 
15:49:44 UTC ---
Another approach is to not create CLOBBERs in the outermost scope at all
but re-create those during inlining when building the containing BLOCK.
That would probably avoid CLOBBERs for most C code that is not inlined.