On Wed, Sep 11, 2024 at 11:26:27PM +0200, Jakub Jelinek wrote:
> I think we need to discuard useless locs even from the preserved VALUEs.
> That IMHO shouldn't create any further useless VALUEs, the preserved
> VALUEs are never useless, so we don't need to iterate with it, can do it
> just once, but IMHO it needs to be done because actually
> discard_useless_values.
>
> The following patch does that.
Note, I've verified the patch on x86_64-linux cc1plus didn't change
anything at all on the resulting cc1plus binary (compared it to one
bootstrapped without this patch with the patch later applied and
make cc1plus done in the stage3, the only change in the binary was
16 bytes of executable_checksum).
Jakub
