On Tue, Feb 4, 2014 at 5:27 PM, Bingfeng Mei b...@broadcom.com wrote:
Hi,
One of biggest issues we have with GCC vectorization is bloated code size.
For example, vectorized version is 2.5 times of non-vectorized one for the
following simple code. One reason is that GCC often creates one loop
version due to alias/alignment in
vectorization?
See also http://gcc.gnu.org/ml/gcc/2013-08/msg00259.html
There are some concerns, but it would be interesting to do some
benchmarking of this.
David
On Tue, Feb 4, 2014 at 8:27 AM, Bingfeng Mei b...@broadcom.com wrote:
Hi,
One of biggest issues we
Hi,
One of biggest issues we have with GCC vectorization is bloated code size.
For example, vectorized version is 2.5 times of non-vectorized one for the
following simple code. One reason is that GCC often creates one loop copy
because of aliasing/alignment and one epilog loop because of loop
See also http://gcc.gnu.org/ml/gcc/2013-08/msg00259.html
There are some concerns, but it would be interesting to do some
benchmarking of this.
David
On Tue, Feb 4, 2014 at 8:27 AM, Bingfeng Mei b...@broadcom.com wrote:
Hi,
One of biggest issues we have with GCC vectorization is bloated code
