[Bug rtl-optimization/17838] spills are not re-used

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17838

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-11-08 20:24:01 UTC ---
(In reply to comment #6)
> Created attachment 25751 [details]
> Another test case
> 
> Another example using 
> 
> gcc version 4.6.1 20110908 (Red Hat 4.6.1-9) (GCC) 
> 
> The function when compiled with "-m32 -O3" uses way more stack than it should. 
> It's like it's putting the fp_int.dp[] array on the stack...
> 
> I can confirm this is a problem on 32/64 and ARM as well.

That is a different issue dealing with memcpy works (or does not get
optimized).  File a different bug.