Displaying 2 results from an estimated 2 matches for "f4ee4409".
2015 Jul 31
0
[LLVMdev] optimizer clobber EFLAGS
On 7/29/15 18:35, JF Bastien wrote:
> Agreed, never emit pushf/popf. Sorry I never committed the patch, the
> cmov issue got hairy and I never got to debugging it :-)
> I can get back to it if there's interest!
You've definitely got some interest here. I've been looking at your
patch on http://reviews.llvm.org/D6629 and I think I'm up to speed on
where it's stuck.
2015 Jul 30
2
[LLVMdev] optimizer clobber EFLAGS
Agreed, never emit pushf/popf. Sorry I never committed the patch, the cmov
issue got hairy and I never got to debugging it :-)
I can get back to it if there's interest!
On Wed, Jul 29, 2015 at 4:12 PM, Reid Kleckner <rnk at google.com> wrote:
> I remember this bug. :) IMO, LLVM should never emit pushf / popf. I'm not
> sure this patch to fix it ever got committed:
>