On 17 Mar 22:18, Ulrich Drepper wrote:
On Mon, Mar 17, 2014 at 7:39 AM, Ilya Tocar tocarip.in...@gmail.com wrote:
undefined is similar in behavior to setzero, but it also clobbers
flags. Maybe just define it to setzero for now?
What do you mean by clobbers flags? Do you have an
On Tue, Mar 18, 2014 at 10:34 AM, Ilya Tocar tocarip.in...@gmail.com wrote:
On 17 Mar 22:18, Ulrich Drepper wrote:
On Mon, Mar 17, 2014 at 7:39 AM, Ilya Tocar tocarip.in...@gmail.com wrote:
undefined is similar in behavior to setzero, but it also clobbers
flags. Maybe just define it to
On Tue, Mar 18, 2014 at 7:13 AM, Richard Biener
richard.guent...@gmail.com wrote:
extern __inline __m512
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
_mm512_undefined_ps (void)
{
__m512 __Y = __Y;
return __Y;
}
This provokes no warnings (as you wrote) and it
On Tue, Mar 18, 2014 at 4:03 PM, Ulrich Drepper drep...@gmail.com wrote:
On Tue, Mar 18, 2014 at 7:13 AM, Richard Biener
richard.guent...@gmail.com wrote:
extern __inline __m512
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
_mm512_undefined_ps (void)
{
__m512 __Y =
On Tue, Mar 18, 2014 at 4:09 PM, Richard Biener
richard.guent...@gmail.com wrote:
On Tue, Mar 18, 2014 at 4:03 PM, Ulrich Drepper drep...@gmail.com wrote:
On Tue, Mar 18, 2014 at 7:13 AM, Richard Biener
richard.guent...@gmail.com wrote:
extern __inline __m512
__attribute__ ((__gnu_inline__,
On Tue, Mar 18, 2014 at 11:11 AM, Richard Biener
richard.guent...@gmail.com wrote:
Btw, without this zeroing (where zero is also undefined) this may
be an information leak and thus possibly a security issue? That is,
how is _mm_undefined_pd () specified?
People aren't accidentally using the
On 16 Mar 07:12, Ulrich Drepper wrote:
[This patch is so far really meant for commenting. I haven't tested it
at all yet.]
Intel's intrinsic specification includes one set which currently is not
defined in gcc's headers: the _mm*_undefined_* intrinsics.
What specification are talking about?
On Mon, Mar 17, 2014 at 7:39 AM, Ilya Tocar tocarip.in...@gmail.com wrote:
Do you know of any cases where xor is
generated (except for destination in gather/scatter)
I don't have any code exhibiting this handy right now. I'll keep an eye out.
but it also clobbers
flags. Maybe just define
