[Bug tree-optimization/26626] [4.2 Regression] ICE in in add_virtual_operand

[dberlin at dberlin dot org]

------- Comment #4 from dberlin at gcc dot gnu dot org  2006-03-09 23:31 -------
Subject: Re:  [4.2 Regression] ICE in in
        add_virtual_operand

On Thu, 2006-03-09 at 22:54 +0000, pinskia at gcc dot gnu dot org wrote:
> 
> ------- Comment #3 from pinskia at gcc dot gnu dot org  2006-03-09 22:54 -------
> The difference between copyprop and before is the following.
> Before:
>   rv.0_3 = rv.0_2;
>   #   VUSE <NMT.7_13>;
>   D.1900_4 = rv.0_3->d;
> 
> After:
> rv.0_3 = rv.0_2;
> #   VUSE <SMT.6>;
> D.1900_4 = rv.0_2->d;


This is nonsensical, and very bad.

> 
> 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26626