Displaying 20 results from an estimated 20000 matches similar to: "Zero-sized globals in LLVM IR"
2002 Mar 07
8
linear correlation?
Whether the two variables have the same units does not matter. Moreover,
even if there were some way of converting cm to kg the correlation would
still be the same because the correlation is invariant under unit conversion
as it is invariant under multiplication of its arguments by a constant.
As for your second question, the correlation estimator is a continuous
function of each of the
2011 Feb 21
3
assign value to multiple objects with a given ls pattern
Dear R colleagues,
This seems pretty straight forward but I have been banging my head on this for some time and can't seem to find a solution
suppose I have something like
a1<-1; a2<-2; a3<-3; a4<-4; b1<-3; b2<-4
I would like to quickly assign to objects with a certain pattern, e.g., those in
ls(pattern="a")
a specific value, e.g., "99", without
2017 Aug 07
3
AliasAnalysis: may-alias subcategory
There are function which does have optimization opportunities but because of may-alias memory dependencies sometimes optimization is not effective. May be runtime checks kills the gains of optimization. For such cases aiming to do interprocedural function specialization optimization where in the clone function version no-alias assumption can be assumed and the original function version will hold
2014 Jan 18
3
[LLVMdev] Artificial deps and stores
On Jan 17, 2014, at 4:03 PM, Andrew Trick <atrick at apple.com> wrote:
>
> On Jan 17, 2014, at 3:54 PM, Hal Finkel <hfinkel at anl.gov> wrote:
>
>> Andy, et al.,
>>
>> In ScheduleDAGInstrs::buildSchedGraph, the code for handling stores has this:
>>
>> if (!ExitSU.isPred(SU))
>> // Push store's up a bit to avoid them
2020 Aug 16
3
Supporting libunwind on Windows 10 (32bit; 64bit) for MSVC and Clang
Martin,
good to hear from you.
Thanks for the effort - I will test on 32bit and 64bit Windows 10.
I will report ASAP.
Ivan
On Sun, Aug 16, 2020 at 8:42 PM Martin Storsjö <martin at martin.st> wrote:
> On Sat, 15 Aug 2020, Ivan Serdyuk wrote:
>
> >
> >
> > On Sat, Aug 15, 2020 at 8:39 PM Martin Storsjö <martin at martin.st> wrote:
> > Hi,
> >
2004 May 26
4
how to realize "MLPPP LFI"
Hi,all
I am using iproute2/tc to manage bandwidth and control traffic.I must realize these two tricky functions in mips linux(kernel 2.4.17):
1.The device MUST support the capability to fragment AF and BE traffic in order to constrain the perturbing impact of AF and BE packets on EF traffic delay, for example using a mechanism such as MLPPP LFI.(RFC1990)
2. The packet size threshold before
2014 Oct 08
3
[LLVMdev] Proposal: bindings for the Go programming language
Hi all,
I'd like to propose that we add an official set of Go bindings to the LLVM
project. These bindings are based on the existing "gollvm" project [1]. (Note
that all contributors to the gollvm project have agreed to relicense their
changes under the LLVM license and submit them to the LLVM project.) The
bindings would live in the LLVM tree under the bindings/go directory.
One
2017 Aug 07
2
AliasAnalysis: may-alias subcategory
Hi,
The current AliasAnalysis marks may-alias for cases when memory passed as function argument.
i.e.
void foo(int *A, int *B, int *C) {
for (int i=0; i<N; i++)
A[i] = B[i] + C[i];
}
In the above example, it's may-alias for memory 'A', because 'A' is not known at 'foo' call sites.
Alias analysis is able to figure out memory 'A' is no-alias, if I
2004 Mar 10
2
copy error + control file corruption in ocfs 1.1 0
Hi Bharat/Philip,
I haven't tested it yet.
My systems are running RHAS 2.1.
I'll come back to let you now the outcome.
Regards,
Robert.
-----Original Message-----
From: Bharat_Sajnani@Dell.com
To: robert.blok@logicacmg.com
Sent: 3/10/2004 7:09 PM
Subject: RE: [Ocfs-users] copy error + control file corruption in ocfs 1.10
Hi Robert,
Have you had a chance to retest this issue with the
2005 Jun 18
6
htb child classes don''t borrow form "parent''s parent class" :(
Dear list,
I have the problem that child classes don''t seem to issue the parent
class to borrow from their parent.
This is a simplified version of my script:
tc qdisc del dev $DEV root
tc qdisc add dev $DEV root handle 1: htb default 10
tc class add dev $DEV parent 1: classid 1:1 htb rate 10mbit
tc class add dev $DEV parent 1:1 classid 1:10 htb rate 1kbit ceil
512kbit
#groups
tc
2012 May 24
2
[LLVMdev] -fbounds-checking vs {SAFECode,ASan}
On 5/24/12 5:41 AM, Duncan Sands wrote:
> Hi Kostya, I'm also curious to know where Nuno is going with this, and the
> details of his design. I'm worried he might be reinventing the wheel. I'm
> also worried that he may be inventing a square wheel :)
I believe Nuno's goal is to prevent run-time exploitation of software.
Nuno, please correct me if I'm wrong.
And
2012 May 25
0
[LLVMdev] -fbounds-checking vs {SAFECode,ASan}
On Thu, May 24, 2012 at 9:23 PM, John Criswell <criswell at illinois.edu>wrote:
> On 5/24/12 5:41 AM, Duncan Sands wrote:
> > Hi Kostya, I'm also curious to know where Nuno is going with this, and
> the
> > details of his design. I'm worried he might be reinventing the wheel.
> I'm
> > also worried that he may be inventing a square wheel :)
>
>
2020 Feb 19
2
The semantics of nonnull attribute
On Wed, Feb 19, 2020 at 3:51 AM Juneyoung Lee via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> I think not_poison (Johannes's used keyword) makes sense. We can simulate the original UB semantics by simply attaching it, as explained.
> For the attributes other than nonnull, we may need more discussion; align attribute seems to be okay with defining it as poison, dereferenceable
2014 Oct 09
2
[LLVMdev] Proposal: bindings for the Go programming language
> Importing this path would cause 'go get' to check out LLVM plus the bindings
> from SVN using the mechanism described in [3]. We would check index.html
> files into the www repository to support this.
>
> There doesn't seem to be a good way to build complex C++ projects such as LLVM
> using 'go get', so there is a script (update_llvm.sh) that builds LLVM and
2012 May 24
5
[LLVMdev] alloc_size metadata
On 5/24/12 3:51 AM, Duncan Sands wrote:
> Hi Nuno,
>
>> I'm implementing the alloc_size function attribute in clang.
> does anyone actually use this attribute? And if they do, can it really buy
> them anything? How about "implementing" it by ignoring it!
Tools like ASan and SAFECode *could* use this attribute to determine the
size of memory objects created by
2010 Oct 05
3
Zero-sized Maildir files and index corruption on over-quota
We are using Postfix as an MTA delivering via Dovecot's LDA (with sieve). We also use Dovecot as a POP/IMAP server. Mail storage is Maildir on NFS, indexes are stored locally. Quotas are FS quotas enforced by the NFS server. The Dovecot version is 1.2.11.
Recently, for one user being over quota, some attempts to deliver mail bounced as expected while some others resulted in zero-sized Maildir
2009 Jan 10
2
[LLVMdev] How to represent zero-sized string?
Hi all,
int main() {
t("");
return 0;
}
On Mac OS X, llvm-gcc compiles the zero-sized string to:
.lcomm LC,1,0
gcc:
.cstring
LC0:
.ascii "\0"
The difference seems innocent enough. However, in objc if the zero-
sized string is part of a cfstring, it causes a problem. The linker
expects it in the readonly __cstring section, but llvm puts it in the
2012 Sep 11
1
help in running r query in pre defined time intervals
Hi Team,
I am not sure how to run some r queries in continuos time interval for say in each 30 minutes.
Will be very grateful if some one can give me some heads up in good direction.
Unfortunately I dont have any query written or data which I can share and I know most of the respected people will not like it but
it's kind of a thought which is perturbing me from some days.
Thanks in
2012 Nov 10
2
[LLVMdev] Forward references of globals in .ll files
I'm experiencing a weird issue during .ll file parsing, and I'm not sure if
it's a bug in the .ll parser, or if I'm just not understanding the IR.
Take the following IR:
@a = addrspace(1) global i8 0
@a2 = global i8 addrspace(1)* @a
This parses fine. But if I rearrange the statements to:
@a2 = global i8 addrspace(1)* @a
@a = addrspace(1) global i8 0
then I get an ugly
2012 Feb 17
4
How can I tabulate time series data (in RStudio or any other R editor)?
Hello,
I have a question on how to tabulate the time series data. I use
RStudio, but if can be done in any other R editor, it should work in
RStudio as well.
> a1<-11:22
> a1ts<-ts(a1, frequency=4, start=c(1978,1))
> a1ts Qtr1 Qtr2 Qtr3 Qtr4
1978 11 12 13 14
1979 15 16 17 18
1980 19 20 21 22
If I click the variable "a1ts" on the