Displaying 4 results from an estimated 4 matches for "valid2".
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2011 Oct 10
3
[LLVMdev] Disable Short-Circuit Evaluation?
...globalIndexY0 >= 4 && globalIndexY0 < 3910;
int globalIndexY1 = get_group_id(1)*186 + 6*get_local_id(1) + 1 + 1;
bool valid1 = validX && globalIndexY1 >= 4 && globalIndexY1 < 3910;
int globalIndexY2 = get_group_id(1)*186 + 6*get_local_id(1) + 2 + 1;
bool valid2 = validX && globalIndexY2 >= 4 && globalIndexY2 < 3910;
Clang, even at -O0, is performing short-circuit evaluation of these
expressions, resulting in a fair number of branch instructions being
generated. For most targets, this is a beneficial optimizations. However,
f...
2011 Oct 10
1
[LLVMdev] [cfe-dev] Disable Short-Circuit Evaluation?
Justin Holewinski <justin.holewinski at gmail.com> writes:
> int globalIndexY2 = get_group_id(1)*186 + 6*get_local_id(1) + 2 + 1;
> bool valid2 = validX && globalIndexY2 >= 4 && globalIndexY2 < 3910;
>
> Clang, even at -O0, is performing short-circuit evaluation of these
> expressions, resulting in a fair number of branch instructions being
> generated.
It has to. This is the semantics of C. Short...
2011 Oct 10
0
[LLVMdev] [cfe-dev] Disable Short-Circuit Evaluation?
10.10.2011, 18:29, "David A. Greene" <greened at obbligato.org>:
> Justin Holewinski <justin.holewinski at gmail.com> writes:
>
>> int globalIndexY2 = get_group_id(1)*186 + 6*get_local_id(1) + 2 + 1;
>> bool valid2 = validX && globalIndexY2 >= 4 && globalIndexY2 < 3910;
>>
>> Clang, even at -O0, is performing short-circuit evaluation of these
>> expressions, resulting in a fair number of branch instructions being
>> generated.
>
> It has to. This i...
2016 Jun 04
0
factors with non-unique ("duplicated") levels have been deprecated since 2009 -- are *more* deprecated now -- and why you should be hesitant misusing suppressWarnings()
...abels <- x at value.labels
if (length(labels)) {
values <- labels at values
labels <- labels at .Data
}
else {
values <- labels <- sort(unique(x at .Data))
}
filter <- x at value.filter
use.levels <- if (length(filter))
is.valid2(values, filter)
else TRUE
f <- suppressWarnings(factor(x at .Data, levels = values[use.levels],
labels = labels[use.levels]))
if (length(attr(x, "contrasts")))
contrasts(f) <- contrasts(x)
f
}
<environment: namespace:memisc>
and the suppressW...