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

[tstdenis at elliptictech dot com]

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

--- Comment #6 from Tom St Denis <tstdenis at elliptictech dot com> 2011-11-08 14:17:55 UTC ---
Created attachment 25751
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25751
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.