[Bug tree-optimization/18842] Weak optimization on global references

[pinskia at gcc dot gnu dot org]

------- Comment #7 from pinskia at gcc dot gnu dot org  2006-03-05 21:30 -------
(In reply to comment #2)
> This is not a bug.  You need IPA to figure out that y is never changed.  For 
> example: 
>  
> int x, &y = x, z; 
> int bar() { y = z; } 

This actually does:
*y = z; and not y = &z;


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18842