From: Dan Carpenter > Sent: 21 March 2022 08:16 > > This version is better, thanks! > > Reviewed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> > > What the GCC devs should have done is run their checker on real code and > silence the common false positives. There are a few ways to do this. > You could make ~ a special case. They already ignore truncated sign > extension so they could equally well ignore truncation when all it's a > 32 bits which are all set to 1. Probably the best answer is to do both. Or start using -(BIT_VALUE + 1) instead of ~BIT_VALUE :-) David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
