On 01/30/14 08:19, Paulo Matos wrote:
-----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.
When you've got it sorted out, go ahead and file a BZ, include the
regression markers so that it shows up in the searches most of us are
paying the most attention to right now.
jeff
