Re: RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag

H.J. Lu
2008-03-06T16:59:21Z

On Thu, Mar 6, 2008 at 8:23 AM, Jakub Jelinek <jakub@redhat.com> wrote:
> On Thu, Mar 06, 2008 at 07:50:12AM -0800, H. Peter Anvin wrote:
> > H.J. Lu wrote:
> > >I agree with it. There is no right or wrong here Let's start from
> > >scratch and figure out
> > >what is the best way to handle this, assuming we are defining a new psABI.
>
> BTW, just tested icc and icc doesn't generate cld either (so it matches the
> new gcc behavior).
> char buf1[32], buf2[32];
> void bar (void);
> void foo (void)
> {
> __builtin_memset (buf1, 0, 32);
> bar ();
> __builtin_memset (buf2, 0, 32);
> }
>

Icc follows the psABI. If we are saying icc/gcc 4.3 need a fix, we'd
better define
a new psABI first.

H.J.