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Re: [dataflow] remove useless call from fwprop
> Have you tested this?
Sure, bootstrapped/tested i686-pc-linux-gnu.
> I would love to get rid of this, but unless you get rid of
>
> for (i = 0; i < DF_USES_TABLE_SIZE (); i++)
> {
> struct df_ref *use = DF_USES_GET (i);
> if (use)
> if (!current_loops
> || DF_REF_TYPE (use) == DF_REF_REG_USE
> || DF_REF_BB (use)->loop_father == NULL)
> forward_propagate_into (use);
> }
>
> and the other code like it.,
> you cannot get rid of that call.
I can, because the table is already ordered by register number thanks to
the reaching-definition computation. The thing is, this code is
independent of the *ordering* of the table. It just cares that the
table is there.
Paolo