> -----Original Message----- > From: Andreas Schwab [mailto:sch...@linux-m68k.org] > Sent: 30 January 2014 15:15 > To: Paulo Matos > Cc: gcc@gcc.gnu.org > Subject: Re: Regression [v850,mep...]: sign_extend in loop breaks > zero-overhead > loop generation > > Paulo Matos <pma...@broadcom.com> writes: > > > If instead I write: > > void > > foo (short blockSize) > > { > > short i; > > unsigned short loopCount; > > loopCount = (unsigned short) (blockSize + delayLength) % 8; > > for (i = 0; i < loopCount; i++) > > *temp_ptr++ = x ^ *temp_ptr; > > } > > This is still undefined. >
OK, of course. Don't know what I am doing today. It's undefined because 'i' might overflow... I will get back to this. Thanks for pointing this out. > Andreas. > > -- > Andreas Schwab, sch...@linux-m68k.org > GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 > "And now for something completely different."
