On Tue, Mar 18, 2014 at 01:32:57PM +0100, Richard Biener wrote:
> 2014-03-18 Richard Biener
>
> * df-problems.c (df_rd_confluence_n): Avoid bitmap_copy
> by using bitmap_and_compl instead of bitmap_and_compl_into.
> (df_rd_transfer_function): Likewise.
Ok, thanks.
Ja
I found this patch in my local tree which avoids copying a bitmap
by doing
bitmap_and_compl (&tmp, op2, dense_invalidated);
instead of
bitmap_copy (&tmp, op2);
bitmap_and_compl_into (&tmp, dense_invalidated);
which should besides speed also eventually reduce peak memory
