Displaying 8 results from an estimated 8 matches for "simultaen".
Did you mean:
simultan
2006 Nov 23
4
Ryacas and fractions with simultaenously very large numerators and denominators
...on(Inf^1.260864167e+117/Inf^6.304320836e+116)
> Eval(x)
[1] NaN
No luck this way. However, I am successful with
> y <- yacas("(3/2)^400")
> y
expression(7.05507910865533e+190/2.58224987808691e+120)
> Eval(y)
[1] 2.732144e+70
If Ryacas/Yacas cannot multiply fractions with simultaenously very
large numerators and denominators, what else should I use?
Thanks in advnace,
Paul
2009 Jan 28
5
[LLVMdev] Copy Instructions?
...// y = phi(y.0, x)
> >
> > Yes, that's what mem2reg ends up with.
>
> Why is this a problem? All phis execute "atomically". What problem
> are you seeing in practice?
I'm getting incorrect answers.
How can a set of phis with a dependence execute simultaenously?
There is only one definition of x and it has to happen before the use of
x in the phi defining y, doesn't it?
Owen says:
> In this case, you can resolve it by inserting an extra PHI node:
> x.0 = 0
> y.0 = 0
> do
> foo = phi(undef, x)
> x = phi(x.0, y...
2009 Jan 28
0
[LLVMdev] Copy Instructions?
On Jan 28, 2009, at 9:50 AM, David Greene wrote:
> How can a set of phis with a dependence execute simultaenously?
> There is only one definition of x and it has to happen before the
> use of
> x in the phi defining y, doesn't it?
>
The "normal" answer would be that they execute atomically only at the
IR level. Part of the out-of-SSA translation that happens in the
backen...
2009 Jan 28
0
[LLVMdev] Copy Instructions?
On Jan 28, 2009, at 9:50 AM, David Greene wrote:
>> Why is this a problem? All phis execute "atomically". What problem
>> are you seeing in practice?
>
> I'm getting incorrect answers.
>
> How can a set of phis with a dependence execute simultaenously?
> There is only one definition of x and it has to happen before the
> use of
> x in the phi defining y, doesn't it?
PHIs can't depend on each other.
> Again, how can simultaenous execution of statements with a
> dependence have any
> meaning?
There is no such...
2009 Jan 28
1
[LLVMdev] Copy Instructions?
...28, 2009, at 9:50 AM, David Greene wrote:
> >> Why is this a problem? All phis execute "atomically". What problem
> >> are you seeing in practice?
> >
> > I'm getting incorrect answers.
> >
> > How can a set of phis with a dependence execute simultaenously?
> > There is only one definition of x and it has to happen before the
> > use of
> > x in the phi defining y, doesn't it?
>
> PHIs can't depend on each other.
So just to be clear, this means that all phi uses are considered to execute
before any phi derfs?...
2009 Jan 28
0
[LLVMdev] Copy Instructions?
On Jan 28, 2009, at 9:06 AM, David Greene wrote:
> On Tuesday 27 January 2009 18:28, Eli Friedman wrote:
>
>> You can use a no-op bitcast for scalars, but there isn't any reliable
>> way to do it for all first-class values.
>
> Guh.
>
>> That said, I don't quite follow the issue. This is SSA, so the
>> only way a
>> value can change is if
2009 Jan 28
4
[LLVMdev] Copy Instructions?
On Tuesday 27 January 2009 18:28, Eli Friedman wrote:
> You can use a no-op bitcast for scalars, but there isn't any reliable
> way to do it for all first-class values.
Guh.
> That said, I don't quite follow the issue. This is SSA, so the only way a
> value can change is if you change the code.
This isn't (yet) SSA. This is mem2reg turning things into SSA.
>
2009 Jan 27
1
Old Thunderbird problem - need a fix
I've been having a Dovecot/Thunderbird problem for about a year now and
I need a fix. When I restart dovecot everything is fine but as the day
progresses thing start deteriorating.
When I empty my trash folder it doesn't empty. I get an indication that
email has arrived in my inbox by the unread message count but can't
access it. Messages arrive by appear to be empty. Folders that