Hi,
Please note that currently the test:
int a[N];
short b[N*2];
for (int i = 0; i N; ++i)
a[i] = b[i*2];
Is compiled to (with -march=corei7 -O2 -ftree-vectorize):
movdqa b(%rax), %xmm0
movdqa b-16(%rax), %xmm2
pand%xmm1, %xmm0
pand%xmm1, %xmm2
On Tue, Jun 24, 2014 at 4:05 AM, Richard Biener
richard.guent...@gmail.com wrote:
On Sat, May 3, 2014 at 2:39 AM, Cong Hou co...@google.com wrote:
On Mon, Apr 28, 2014 at 4:04 AM, Richard Biener rguent...@suse.de wrote:
On Thu, 24 Apr 2014, Cong Hou wrote:
Given the following loop:
int
On Sat, May 3, 2014 at 2:39 AM, Cong Hou co...@google.com wrote:
On Mon, Apr 28, 2014 at 4:04 AM, Richard Biener rguent...@suse.de wrote:
On Thu, 24 Apr 2014, Cong Hou wrote:
Given the following loop:
int a[N];
short b[N*2];
for (int i = 0; i N; ++i)
a[i] = b[i*2];
After being
On Mon, Apr 28, 2014 at 4:04 AM, Richard Biener rguent...@suse.de wrote:
On Thu, 24 Apr 2014, Cong Hou wrote:
Given the following loop:
int a[N];
short b[N*2];
for (int i = 0; i N; ++i)
a[i] = b[i*2];
After being vectorized, the access to b[i*2] will be compiled into
several
On Thu, 24 Apr 2014, Cong Hou wrote:
Given the following loop:
int a[N];
short b[N*2];
for (int i = 0; i N; ++i)
a[i] = b[i*2];
After being vectorized, the access to b[i*2] will be compiled into
several packing statements, while the type promotion from short to int
will be
Given the following loop:
int a[N];
short b[N*2];
for (int i = 0; i N; ++i)
a[i] = b[i*2];
After being vectorized, the access to b[i*2] will be compiled into
several packing statements, while the type promotion from short to int
will be compiled into several unpacking statements. With this
