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Re: [patch] Disable tree-ssa DSE for now

> int x;
> 
> int
> f1 (int i, int j, int k)
> {
>   int *p = k ? &i : &j;
>   i = 3;
>   *p = 5;
>   x = j;
>   return i;
> }
> 
....
> 
> What's important to note here is that the store into "i" is no longer
> dead.  

It's actually partially dead.
It's dead along one path, which is the path where p = &i.
The PDCE part of store sinking i never submitted (because the store
sinking patch i did submit was toned down specifically to gear it to
4.0)
i have will move it into the other path (the path where p = &j), which
is nice :).




--Dan
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