Hello,
On Thu, 18 Apr 2019 14:42:22 +0200 Richard Biener
wrote:
> On Thu, Apr 18, 2019 at 2:20 PM Uecker, Martin
> wrote:
> > 1.) Compilers do not use conditional equivalences for
> > optimizations of pointers (or only when additional
> > conditions apply which make it safe)
> >
> > 2.) We mak
Hello Jakub,
On Fri, 19 Apr 2019 10:49:08 +0200 Jakub Jelinek
wrote:
> On Fri, Apr 19, 2019 at 10:19:28AM +0200, Jens Gustedt wrote:
> > > OTOH GCC transforms
> > > (uintptr_t)&a != (uintptr_t)(&b+1)
> > > into &a != &b + 1 (for equality compa
Hello Peter,
On Fri, 19 Apr 2019 10:11:43 +0100 Peter Sewell
wrote:
> On 19/04/2019, Jakub Jelinek wrote:
> > On Fri, Apr 19, 2019 at 10:19:28AM +0200, Jens Gustedt wrote:
> [...]
> > That penalizes quite a few optimizations though.
> > If you have
> >
Hello Jakub,
On Fri, 19 Apr 2019 11:34:33 +0200 Jakub Jelinek
wrote:
> On Fri, Apr 19, 2019 at 11:09:27AM +0200, Jens Gustedt wrote:
> > > similarly, if one of the
> > > pointers is &object or &object + sizeof (object).
> >
> > Here I don't follo
Am 24. April 2019 20:43:03 MESZ schrieb Jeff Law :
>On 4/24/19 4:24 AM, Richard Biener wrote:
>> On Fri, Apr 19, 2019 at 11:09 AM Jens Gustedt
>wrote:
>>>
>>> Hello Jakub,
>>>
>>> On Fri, 19 Apr 2019 10:49:08 +0200 Jakub Jelinek
>>> wrote
