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...GB away in memory, which > cannot be encoded as an immediate offset in the call instruction. So, > the value is first materialized with a mov instruction which can > encode the immediate and then jumped to through a register. > > Reid > > On Tue, Feb 22, 2011 at 12:03 PM, Xin Tong Utoronto <x.tong at utoronto.ca> > wrote: > > I have a question on the LLVM JIT > > > > I did some brief memory reading one day and I found that a call to a > > non-library function is resolved by the X86CompilationCallback, but the > > X86CompilationCallback...

...gt; ==> > > 0xa743a0 <X86CompilationCallback>: push %rbp > 0xa743a1 <X86CompilationCallback+1>: mov %rsp,%rbp > 0xa743a4 <X86CompilationCallback+4>: push %rdi > 0xa743a5 <X86CompilationCallback+5>: push %rsi -- Kind Regards Xin Tong -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110222/812862a9/attachment.html>

...of the callee may be more than 2 GB away in memory, which cannot be encoded as an immediate offset in the call instruction. So, the value is first materialized with a mov instruction which can encode the immediate and then jumped to through a register. Reid On Tue, Feb 22, 2011 at 12:03 PM, Xin Tong Utoronto <x.tong at utoronto.ca> wrote: > I have a question on the LLVM JIT > > I did some brief memory reading one day and I found that a call to a > non-library function is resolved by the X86CompilationCallback, but the > X86CompilationCallback is reached through a trampolin...

...specific > than "Re: Contents of LLVMdev digest..." > > > Today's Topics: > > 1. Re: GSOC Adaptive Compilation Framework for LLVM JIT Compiler > (Stephen Kyle) > 2. Re: GSOC Adaptive Compilation Framework for LLVM JIT Compiler > (Xin Tong Utoronto) > 3. Re: GSOC Adaptive Compilation Framework for LLVM JIT Compiler > (Owen Anderson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 4 Apr 2011 18:19:01 +0100 > From: Stephen Kyle <s.kyle at...

Should not the 4.0.0 release be March _2017_ in the "Release Emails" section on http://llvm.org/ ? -Xin

Is there a way to limit outbound calls when feeding files to the outgoing directory in asterisk? I several thousand files i need to feed asterisk, hoping to copy it to the outgoing directory all at 1 time.

I would like to know the status of the autovectorization support in LLVM. does LLVM have a loop dependence analysis, does LLVM have a infrastructure for autovectorization ? etc. Kind Regards Xin Tong -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110624/3dc35318/attachment.html>

...t; #include <Rdefines.h> #include <Rmath.h> SEXP test( ) { double x; x=dnorm(1.0,0.0,1.0,1); printf(" x value is: %d \n",x); return(R_NilValue); } I got the result : x value is: -466460838 Could someone explain to me what was wrong here ? Thanks a lot. tong

...ead, I got something like this (copied the first two lines): [00000000]???73?74?72?75??63?74?75?72??65?28?6C?69??73?74?28?78???? structure(list(x [00000010]???20?3D?20?63??28?2D?30?2E??33?36?33?31??36?31?30?33 ?????=?c(-0.36316103 Did I do something wrong here ? Thanks a lot for any help tong

I do not know too much about clang, is opencl publicly supported in clang ? how about cuda ? Thanks Xin

Hi I see when LLVM builds the CallGraph SCCs. a function calling through a function pointer is conservatively assumed to call internal and external functions. Therefore, it has an edges pointing to the externalnode2, ie. the externalnode representing outgoing calls from this module. does LLVM have any function pointer analysis capabilities in the mainline ? Thanks, -Trent

...dy gid = nobody use chroot = no max connections = 4 pid file = /var/run/rsyncd.pid lock file = /var/run/rsync.lock log file = /var/log/rsyncd.log [web] # just a test path = /BGI/UCSC-mirror/bin/apache_1.3.27 comment = tmp backup directory ignore errors read only = yes list = no auth users = tongw secrets file = /etc/backserver.pas hosts allow = 192.168.1.120 Another question, when I initiate the rsync server in 192.168.1.30 by "rsync --daemon" command, the script is soon completed, no errors or runing information. How can I know whether the "daemon" mode of rsync...

How do you calculate T and P statistics (T- test) in R? Is there a package out there that can do these calculations? Best, Michael Tong Futures Associate Quantitative Research Services Franklin Templeton Investments, Inc. 600 Fifth Ave New York, NY 10020 (212) 632-4254 mtong@templeton.com Notice: All email and instant messages (including attachments) sent to or from Franklin Templeton Investments (FTI) personnel may be retaine...

...(Unknown command line argument '-cfl-aa') It seems that they are not working properly. Could you please give some advice? And I was wondering if these alias analyses can produce alias results as precise as andersen or steensgaard. Thank you! Zhiyuan On Thu, Apr 9, 2015 at 10:19 PM, Xin Tong <trent.tong at gmail.com> wrote: > Hi Zhiyuan > > LLVM has globalsmodref-aa for global variables, TBAA - type based > alias analysis and CFL-AA. > > Xin > > On Tue, Apr 7, 2015 at 9:32 PM, Wan Zhiyuan <wanzhiyuan at gmail.com> wrote: > > Dear all, > &gt...

...lt;clchiou at gmail.com> wrote: > You specify shader model, bit size and etc. arch-specified parameters > though -march, -mattr and -mcpu, but AFAIK, PTX backend does not use > the GPU thread/block/grid size information in optimization yet. > > On Mon, Mar 12, 2012 at 8:17 PM, Xin Tong <xerox.time.tech at gmail.com> wrote: >> I am wondering that how does the LLVM PTX backend find out the >> constraints on executing GPU thread/block/grid size ( i.e. a block can >> at most have 1024 threads). Can anyone point me to the code ? I need >> information in t...

On Thu, Jan 23, 2020 at 11:37 AM David Greene <greened at obbligato.org> wrote: > Hubert Tong <hubert.reinterpretcast at gmail.com> writes: > > >> I read this as the refresh being an entirely new GitHub PR. Is that > >> right? Normally I would expect the same PR to be used but the rebase > >> would cause a force-push of the branch which would update the...

On 29 March 2011 12:35, Xin Tong Utoronto <x.tong at utoronto.ca> wrote: > *Project Description:* > > * > * > > LLVM has gained much popularity in the programming languages and compiler > industry from the time it is developed. Lots of researchers have used LLVM > as frameworks for their researches a...

On Wed, Feb 12, 2014 at 10:32:03PM +0800, Hurricane Tong wrote: > I seem to run into some trouble. > I succeeded in building the source code of Xapian in ubuntu, > but when I write a demo c++ application > > [snip] > I can't get it built. > > > hurricanetong at hurricanetong-VirtualBox:~/workspace$ g++ -L/usr/local/lib...

Do any of you have an idea as to what the Compilation Time vs Execution Time looks like in LLVM JIT with most aggressive optimizations on. Is adaptive compilation going to bring any benefits to the LLVM JIT ? -- Kind Regards Xin Tong -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110228/d6f5dac8/attachment.html>

How do I submit my GSOC proposal to the llvmdev mailing list ? -- Kind Regards Xin Tong -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110328/4f068139/attachment.html>