On 11/5/23 11:47, Richard Sandiford wrote:
For a given block, an entity is either transparent for
all modes or for none. Each update to the transparency set
therefore used a loop like:
for (i = 0; i < no_mode; i++)
clear_mode_bit (transp[bb->index], j, i);
This patch instead starts out with a bit-per-block bitmap
and updates the main bitmap at the end.
This isn't much of a simplification on its own. The main
purpose is to simplify later patches.
gcc/
* mode-switching.cc (optimize_mode_switching): Initially
compute transparency in a bit-per-block bitmap.
OK
jeff
