CCP propagating conditional expression constants

Sebastian Pop sebastian.pop@inria.fr
Fri Jan 5 13:25:00 GMT 2007


On 1/5/07, Duncan Sands <baldrick@free.fr> wrote:
> gcc -c -O2 -fdump-tree-all q.c
> Here x is replaced by VRP, see q.c.039t.vrp1.
>
> gcc -c -O2 -fno-tree-vrp -fdump-tree-all q.c
> Here x is replaced by DOM, see q.c.041t.dom1.
>
> gcc -c -O2 -fno-tree-vrp -fno-tree-dominator-opts -fdump-tree-all q.c
> With VRP and DOM turned off, x is not replaced.
>

Right.  Sorry for the confusion.
Sebastian



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