Volatile bug in unmaintained GCC 436 and 447

[Paulo J. Matos]

On 12/07/12 12:19, Richard Guenther wrote:
>
> Look into the tree dumps and look where the ={v} disappears.  That
> will point to the pass that breaks it and eventually help track down the
> fixing patch.
>

Thanks for the tip Richard. Tracked it down to PHI prop pass in 
tree-ssa-phiprop.c, not yet what code fix occurred in 4.5.0.

-- 
PMatos