similar to: One question about R

Hello, (Sorry for the repost, i am resending in plain text) I have a function 'ewrap' (see below for definition). It takes 3 expressions and returns another expression e.g. map <- ewrap({ len <- length(r$addon) rhcollect(len,1) }) becomes: expression({ NULL result <- mapply(function(.index, k, r) { { len <- length(r$addon)

The summary stats for the xin and yin variables below are correct. However, if I use plot(xin,yin), an exception is thrown saying that "object xin is not found." Also, it is apparent that I can't successfully replace the x and y vectors with values from xin and yin. The four plots on one panel are showing but the range of x and y is only [0,1], and therefore, it seems like an

Hi Duncan, Yes, exactly. However, we need define Opcode MIN/MAX Into ISDOpcodes.h. Do you like to add those two definitions Into the tree? Thanks, Yin -----Original Message----- From: Duncan Sands [mailto:duncan.sands at gmail.com] On Behalf Of Duncan Sands Sent: Tuesday, October 30, 2012 12:10 PM To: Yin Ma Cc: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] Any plan to

On Thu, Nov 7, 2013 at 11:02 AM, Yin Ma <yinma at codeaurora.org> wrote: > Hi John, > > > > It seems the dereferencing a NULL pointer is undefined behavior but > > Calling a function through a null pointer seems o.k. > What is the well defined behavior of calling a null function pointer? > > > If so , for this place, we need comment out the check. >

Hi John, It seems the dereferencing a NULL pointer is undefined behavior but Calling a function through a null pointer seems o.k. If so , for this place, we need comment out the check. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#232 look at Notes from the October 2003 meeting. Yin From: John Criswell [mailto:criswell at illinois.edu] Sent: Wednesday,

Hi Yin, MCA does support the –mcpu and –mtriple options. We have one arm test in llvm/test/tools/llvm-mca/ARM for a cortex-9, which is an Out of Order chip. Hope that helps! -Matt From: Yin Liu <yinliu.tiger at gmail.com> Sent: Tuesday, May 8, 2018 2:49 PM To: Davis, Matthew <Matthew.Davis at sony.com> Cc: llvm-dev at lists.llvm.org Subject: Re: [llvm-dev] Is there any relationship

Hi Yin, > To use select, usually, there is a compare before select. > Presence of comparison will disable some opportunities to > optimize some code. Select and Compare is not associative > neither. at the IR level LLVM already has pattern matching helpers for identifying min/max idioms, here is part of a transform using this, from InstructionSimplify.cpp: // Signed variants

Hi Yin, I second David's words. I use shared libs myself on debug builds, but static builds with gold on a local disk is pretty feasible. Before I used gold, I had to have 16GB of RAM on my laptop, now I need less than 8GB for static builds. On 28 January 2016 at 23:58, Yin Ma via cfe-dev <cfe-dev at lists.llvm.org> wrote: > It is O.K. I just hope BUILD_SHARED_LIBS=ON is tested

Hi Matt, Thanks you so much for the reply! I've tried the llvm-mca, it is helpful. I was wondering whether the llvm-mca support the assembly code for the ARM? I cross-compile the test file for ARM like that: clang test.c -O2 -target arm-linux-gnueabihf -static -S -o test.s If I want to check the performance using llvm-mca, is there any option of "-mcpu" for ARM ? Thanks, Yin

Hi Duncan, To use select, usually, there is a compare before select. Presence of comparison will disable some opportunities to optimize some code. Select and Compare is not associative neither. Thanks, Yin -----Original Message----- From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Duncan Sands Sent: Tuesday, October 30, 2012

On 11/6/13 6:36 PM, Yin Ma wrote: > > Hi, > > For a small case, that calls NULL pointer function. LLVM explicitly > converts > > It to a store because it thinks it is not reachable like calling > undefvalue. > > In InstCombineCalls.cpp:930 > > I think it is not a right approach because calling null pointer function > > Will segfault the program.

Hi Yin, From: llvm-dev <llvm-dev-bounces at lists.llvm.org> On Behalf Of Yin Liu via llvm-dev > Hello, > > As is known to all, there is a relationship between program's instructions and its execution time. In other words, we can estimate the execution time based on the number of program > instructions. > > I'm curious about what the relationship between IR

Hi David, I assume you have a powerful machine. Our drive space is on network mounted machined by IT department. The machine is default Ubuntu setup with 8 cores. Shared build is showing huge advantage due to size reduction. I will try those two debug options to see how it works. Thanks, Yin From: David Blaikie [mailto:dblaikie at gmail.com] Sent: Thursday, January 28, 2016

----- Original Message ----- > From: "Yin Ma" <yinma at codeaurora.org> > To: "Andrew Trick" <atrick at apple.com> > Cc: llvmdev at cs.uiuc.edu > Sent: Thursday, March 14, 2013 4:21:50 PM > Subject: Re: [LLVMdev] Suggestion About Adding Target Dependent Decision in LSR Please > > > > > > Hi Andy, > > > > Actually,

Howdy folks, As I was putting together a rough form for a rails app, I got to thinking how much smoother (in my siytuation) a little calendar widget would be than the default date picker selects. Does anyone know if such a thing exists ? I suspect it would have to be somewhat designed with rails in mind to populate the right kind of post params for convenient use at the controller end.

I am trying to calculate the number of days between 2 dates using Time.now - object.date where object.date is a date pulled from a database. I want to display the age of the entry in the database in days. I keep getting an error about not being able to convert a date into a float. What am I doing wrong. If I use object.date - object.date it seems to work but the answer is useless (0). I

I'm trying to install a package on OS X (Snow Leopard) using the following command, but instead of respecting the arch directive it install i386. How can this be resolved? R --arch=x86_64 CMD INSTALL .... * installing to library ‘/Library/Frameworks/R.framework/Versions/2.15/Resources/library’ * installing *source* package ‘Rhipe’ ... ** libs *** arch - i386 g++ -arch i386

On Thu, Jan 28, 2016 at 3:06 PM, Jonathan Roelofs <jonathan at codesourcery.com > wrote: > > > On 1/28/16 4:00 PM, Yin Ma via cfe-dev wrote: > >> Hi David, >> >> I assume you have a powerful machine. Our drive space is on network >> mounted >> >> machined by IT department. The machine is default Ubuntu setup with 8 >> cores. >>

Hi, For a small case, that calls NULL pointer function. LLVM explicitly converts It to a store because it thinks it is not reachable like calling undefvalue. In InstCombineCalls.cpp:930 I think it is not a right approach because calling null pointer function Will segfault the program. Converting to a store will make program pass Silently. This changes the behavior of a program.

Greetings, I would like to announce the 0.1 release of RHIPE:R and Hadoop Integrated Processing Environment. The website is located at : http://www.stat.purdue.edu/~sguha/rhipe<http://www.stat.purdue.edu/%7Esguha/rhipe>. The download link is the bottom most link on left side of the page. RHIPE works on top of Hadoop, providing the R user a way to distribute commands over the Hadoop