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Hi Chris, Thanks. I will see what I can do for this. Junjie On Wed, May 19, 2010 at 3:45 PM, Chris Lattner <clattner at apple.com> wrote: > > On May 19, 2010, at 2:38 PM, Junjie Gu wrote: > >> Many compilers support per-loop pragma, such as loop unrolling (ie >> #pragma unroll=2).  Is there any LLVM project/effort going on >&g...

...uite general (for example, it can be used to support frequency hint for a branch, etc). And it should be easy for any frontend to generate. A possible issue might be that optimizations might make the association between pragmas and their loops (in this case) less obvious. Any suggestions/ideas ? Junjie On Wed, May 19, 2010 at 4:31 PM, Junjie Gu <jgu222 at gmail.com> wrote: > Hi Chris, > > Thanks. I will see what I can do for this. > > Junjie > > On Wed, May 19, 2010 at 3:45 PM, Chris Lattner <clattner at apple.com> wrote: >> >> On May 19, 2010, at 2:3...

On Tue, Jun 1, 2010 at 5:42 PM, Junjie Gu <jgu222 at gmail.com> wrote: > Any suggestions/ideas ? IIUC, Chris suggested something like following ... header: br i1 %x, label %then, %label endif then: ... br i1 %y, label %loop_exit, label %header, !loop_pragma !1 endif: ... br i1 %z, label %loop_exit, label %header, !l...

Many compilers support per-loop pragma, such as loop unrolling (ie #pragma unroll=2). Is there any LLVM project/effort going on in this area ? What is the expected way for implementing per-loop pragma, or general pragma ? Suggestions/comments ? Thanks Junjie

I have a MDNode, and one of its operand is an int. I'd like to assign a new int value to that operand during the llvm optimization. What is the right way to do this ? (There is no setOperand() with MDNode class.) Junjie

I have TOT of llvm and it builds 64-bit without issues on my 64-bit ubuntu. My question is how to build 32-bit llvm on my 64-bit ubuntu ? I've not found any configure options to specify that. Thanks Junjie

...n is that it is hard for pragma intrinsics to stay with their associated code, another choice is to process pragma intrinsic at the beginning of optimizer and associates them to instructions by either attaching metadata to instructions and some kind maps (between instructions/BB to metadata, etc). Junjie On Wed, Jun 2, 2010 at 9:48 AM, Devang Patel <devang.patel at gmail.com> wrote: > On Tue, Jun 1, 2010 at 5:42 PM, Junjie Gu <jgu222 at gmail.com> wrote: >> Any suggestions/ideas ? > > IIUC, Chris suggested something like following ... > > header: >  br i1 %x, la...

Hi there, I'd like to plot some maps. Is it possible for me to use SAS map data in R? Thank you. Best, Junjie _________________________________________________________________ your life. [[alternative HTML version deleted]]

What is the difference between WeakAnyLinkage and ExternalWeakLinkage ? They are defined in GlobalValue.h. Thanks Junjie

On May 19, 2010, at 2:38 PM, Junjie Gu wrote: > Many compilers support per-loop pragma, such as loop unrolling (ie > #pragma unroll=2). Is there any LLVM project/effort going on > in this area ? What is the expected way for implementing per-loop > pragma, or general pragma ? Suggestions/comments ? Hi Junjie, I don...

On Jun 7, 2010, at 3:35 PM, Junjie Gu wrote: > I have a MDNode, and one of its operand is an int. I'd like to > assign a new int value to that operand during the llvm optimization. > What is the right way to do this ? (There is no setOperand() with > MDNode class.) Hi Junjie, MDNodes are uniqued, so you can...

If LLVM would like to support OpenMP pragma in the future, not sure if attaching metadata to instructions is still a good choice. Junjie On Wed, Jun 2, 2010 at 11:08 AM, Junjie Gu <jgu222 at gmail.com> wrote: > Thanks for comments/suggestions. > > Yes, attaching metadata to instructions will be good choices for many > cases. But for loops, > attaching metadata to back-edges requires that the front end to build...

...m adjr2 > var.selection$which[var.selection$adjr2==max(var.selection$adjr2),] 1 2 3 4 TRUE TRUE TRUE FALSE Actually, I use the definition of R-square in which the model is without a intercept term. Is what I am doing is correct? Thanks for any suggestion or correction. -- Junjie Li, klijunjie@gmail.com Undergranduate in DEP of Tsinghua University, [[alternative HTML version deleted]]

There is a description of all the possible linkage types at http://llvm.org/docs/LangRef.html#linkage – does this answer your question? (Basically, an extern_weak resp. ExternalWeakLinkage symbol becomes null instead of being an undefined reference) David On 3/16/11 7:06 PM, Junjie Gu wrote: > What is the difference between WeakAnyLinkage and ExternalWeakLinkage > ? They are defined in GlobalValue.h. Thanks > > Junjie > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu...

On Fri, Mar 4, 2011 at 12:38 PM, Duncan Sands <baldrick at free.fr> wrote: > Hi Junjie, > >> I have TOT of llvm and it builds 64-bit without issues on my 64-bit >> ubuntu.  My question is how to build 32-bit llvm on my 64-bit ubuntu ? >> I've not found any configure options to specify that. > > as well as "gcc -m32" and "g++ -m32" yo...

Hi, I have no problem running yum update inside the root prompt, but when running yum using sudo as logged-in as ordinary user and command the 'sudo yum update', I am having below error: Could not retrieve mirrorlist http://apt.sw.be/redhat/el5/en/mirrors-rpmforge error was [Errno 4] IOError: <urlopen error (110, 'Connection timed out')> Error: Cannot find a valid baseurl

Hi List, My Mail/Proxy server has from time to time refuse to accept accept network connection. If I restart the network service, the service will again start to accept connection but after some time will again refuse connection. I use CentOS 4.5 with Squid, DansGuardian, Postfix. Please can someone point me what are the possible cause of this. Thank you. junji aisalen.wordpress.com Linux

Hi Friends, I am planning to upgrade my mail server from CentOS4.5 to CentOS5. By this, I also planned to replace my postfix mail server with Scalix although the community edition limit me to just 25 premium user, I think it is suffice for us with the remaining user as standard user (with approx. <> 100 users total). Is there a catch on using Scalix based on your experience. I see that

On Wed, Sep 28, 2011 at 5:47 PM, Eli Friedman <eli.friedman at gmail.com> wrote: > On Wed, Sep 28, 2011 at 3:27 PM, Junjie Gu <jgu222 at gmail.com> wrote: >> Instrinsic llvm.memory.barrier does not work as expected.  Is it a bug >> or it has not been implemented yet ? > > It's going away in favor of the new fence instruction (and I'll remove > it as soon as dragonegg catches up).  It...

...in practice. For my experience, the outputs of compilers are always used to isolate the causes of compiler bugs, such as the IR after each pass or the backtrace. I am a newbie for LLVM. So I am curious how developers of LLVM or GCC find the root causes of compiler bugs in practice. Thanks! [1] Junjie Chen, Jiaqi Han, Peiyi Sun, Lingming Zhang, Dan Hao, and Lu Zhang. 2019. Compiler bug isolation via effective witness test program generation. In Proceedings of the 2019 27th ACM Joint Meeting on European Software Engineering Conference and Symposium on the Foundations of Software Engineering (ESEC...