search for: qins

LLVM3.8 version. https://bugs.llvm.org//show_bug.cgi?id=24233. The example can catch exception. But I use my own code for testing, CustomEHMemoryManager allocated memory address is very large, allocateCodeSection, allocateDataSection assigned address (more than 32 bit address space) is getting smaller and smaller. Cause registerEHFrames to fail. 3.9.1 or 4.0.0 version has been supported on win

For help: Llvm generated instruction calls a function (extern), the function will have a SEH exception (EXCEPTION_ACCESS_VIOLATION), But JIT can not capture the exception of the EXCEPTION_ACCESS_VIOLATION. I saw Bug 24233. EXCEPTION_ACCESS_VIOLATION exception cannot be captured after modification. How to catch EXCEPTION_ACCESS_VIOLATION exceptions on win64 ? haifeng.qin at wellintech.com

dear all I got this error when I try to use libspeex in visual studio. when I include speex/speex_echo.h, it complains about unresolved external symbol _speex_echo_state_init. And when I include mdf.c into the source, it generates whole bunch of errors. Any idea? thanks so much --------------------Configuration: audio - Win32 Debug-------------------- Compiling... mdf.c C:\Documents and

SCHOOL OF COMPUTING University of Teesside Fully funded University Ph.D. studentship (3 years) Ref: QinOCT11 Applications are invited for a Ph.D. student to work on program analysis and software verification or a closely related topic under the supervision of Dr. Shengchao Qin in the School of Computing in Teesside University. Dr. Qin currently has a number of postdoc and Ph.D students in his

Hi, I was unable to find a bug report for this with a cursory search, but would like clarification if this is intended or unavoidable behaviour: ```{r} # Create example data.frames parents <- data.frame(name=c("Sarah", "Max", "Qin", "Lex"), sex=c("F", "M", "F", "M"),

Hi David and Mats, Thanks for your explanation. If my understanding is correct, it means we don't need to consider the side-effect of malloc/free unless compiling with -ffreestanding. Because without -ffreestanding, user defined malloc/free should be compatible with std library. It makes sense to me. My point is, in std library, malloc is allowed to return null if this malloc failed. Why

Hi, there: When plot ann predicted results I need to indicate numbers of inputs for each column. V1 V2 V3 V4 1 86.2700 49.9380 30.7630 0.1327 2 89.5127 55.9707 33.7683 0.1186 3 91.1833 58.4670 34.5610 0.1134 matplot(t, pch = 1:4, type = "o", col = rainbow(ncol(t)),xlab = "No. of inputs ", ylab = "Mean of 6 Datasets",

Hi Mats, I think Kevin's point is malloc can return 0, if malloc/free pair is optimized way, the semantic of the original would be changed. On the other hand, malloc/free are special functions, but programmers can still define their own versions by not linking std library, so we must assume malloc/free always have side-effect like other common functions, unless we know we will link std

Hi all, Partial unrolling and runtime unrolling are enabled by default in aarch64 gcc which is help to get performance better. But these two methods are enabled for only several backends in LLVM which are X86, PowerPC and R600. I don't know the history of these two kinds of unrolling, and why they are not widely used. I also want to know is, for aarch64 backend, is it intentionally to get

Hi Hal, James told me that in PassManagerBuilder.cpp, BarrierNoopPass is already used for this kind of purpose(though there's also a fixme saying it's hacking). I think it's a good idea to use this pass here. Thanks, Kevin 2015-03-11 17:05 GMT+08:00 Hal Finkel <hfinkel at anl.gov>: > ----- Original Message ----- > > From: "Kevin Qin" <kevinqindev at

Hi, there, I cannot get accurate value for calculation. for example: ld<-sqrt(1*0.05*0.95*0.05*0.95) 0.05*0.95-ld=-6.938894e-18 0.05*0.95-ld==0 is False. I met this problem in my program, how can I handle it. Thanks. xj.

> I think we can do such optimization with operator new, because new never returns null. This is incorrect in the case of `new (std::nothrow) ...` - the whole point of `(std::nothrow)` is to tell new that it should return NULL in case of failure, rather than throw an exception (bad_alloc). But the point here is not the actual return value, but the fact that the compiler misses that the

Hello there: I got 13 variables in my training/target set, the first 12 variables are mixture of numerical and categorical variables. The last one is the one I need to predict, and it is a numerical variable. >train<-read.table("train.txt") >test<-read.table("test.txt") >cl<-factor(train[,13]) >pred<-knn(train, test, clk=3, prob=TRUE) >pred I got

On 15 Dec 2016, at 07:26, haifeng.qin at wellintech.com via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > For help: > > for loop lead to stack overflow, want to actively reclaim stack memory of alloc instruction. > > How to actively reclaim stack memory ? This sounds as if you’re putting the alloca inside the loop, not in the entry basic block and reusing it. If you

Hi all, I'm wanting to make weekly backups of host qin to host elijah. I set a crontab to run a script that effectually executes this rsync command: rsync -ave ssh --exclude-from=excludes.txt --delete / elijah:/home/backup/qin host qin is running gentoo linux with rsync version 2.5.6. host elijah is running debian linux (stable) with rsync version 2.5.7. the excludes.txt file looks like

Hi Frederick, I would expect that any duplicate names in the resulting data.frame would have the suffixes appended to them, regardless of whether or not they are used as the join key. So in my example I would expect "names.x" and "names.y" to indicate their source data.frame. While careful reading of the documentation reveals this is not the case, I would argue the intent of

it's not just adding a line at runtime. it's the openssh maintainers maintaining an odd codepath and testing it at each release and answering questions about the configuration, etc. On Thu, Jun 27, 2024 at 3:00?PM Henry Qin <hq6 at cs.stanford.edu> wrote: > > I would like to understand your opinion a little more deeply. > > Are you suggesting that it's easier to

Hi Daniel,    Thank you your replying.     Yes, the problem is about MIPS backend. You give me this message "There is limited support for the <8 x f16> type when MSA (MIPS SIMD Architecture) is enabled but even then scalar half-precision is not currently supported."  Could you give me some official link or some evidence? Thank you very much. Robin yalong at multicorewareinc.com

Thanks for all your great answers. The app I?m working on is indeed an exploratory data analysis tool for gene expression, which requires a bunch of bioconductor packages. I guess for now, my best solution is to divide my app into modules and load/unload packages as the user switch from one module to another. This brought me another question: it seems that unload package with the

I would like to understand your opinion a little more deeply. Are you suggesting that it's easier to (prepare the container and add a line at runtime) compared to (add a line to an sshd config at runtime)? The latter scenario would be the case if the patch is merged. Or did you mean that it's easier to prepare the container than to implement a correct patch into sshd to enable the option