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Hi, In my experiments, I need to disable several linking optimizations. However, bzip2, vortex and eon failed if "-disable-opt" was passed to gccld. I tried the out-of-box llvm and the building process provided by llvm-test. The same problem was observed, when I specified EXTRA_LINKTIME_OPT_FLAGS = -disable-opt on Makefile.program and simplied typed "make" under

Thank you, Reid. I have applied tha patch to ltdl.c ltdl.h. The problem still exists. I looked up the symbol on libLLVMCore.a, and found three U-entries and one T-entry. However, the Darwin linker is not able to find the T-entry. Any idea? pollux:~/test jingyu$ opt -load /Users/jingyu/tools/build-ppc/Release/lib/LLVMHello.so -help Error opening

I got Python 2.7.3 Sounds right? On Fri Aug 08 2014 at 4:45:01 PM Yi Kong <kongy.dev at gmail.com> wrote: > Hi Jingyue, > > I've never seen this error before. It looks like something to do with > virtualenv. > > What do you get by running `~/mysandbox/bin/python --version`? > > -Yi > > On 8 August 2014 23:48, Jingyue Wu <jingyue at google.com> wrote: > > Hi, > > >...

Hi Jingyue, Sorry to ask again, but how exactly could I glue the fatbin with the instrumented host code? Or does it mean we actually cannot instrument both the host & device code at the same time? Thanks! yuanfeng On Tue, Mar 15, 2016 at 10:09 AM, Jingyue Wu <jingyue at google.com> wrote: >...

Hey Jingyue, Though I tried `opt -nvvm-reflect` on both bc files, the nvvm reflect anchor didn't go away; ptxas is still complaining about the duplicate definition of of function '_ZL21__nvvm_reflect_anchorv' . Did I misused the nvvm-reflect pass? Thanks! yuanfeng On Fri, Mar 11, 2016 at 10:10...

Hey Jingyue, Thanks for being so responsive! I finally figured out a way to resolve the issue: all I have to do is to use `-only-needed` when merging the device bitcodes with llvm-link. However, since we actually need to instrument the host code as well, I encountered another issue when I tried to glue the...

On Tue, Jun 17, 2014 at 2:33 PM, Jingyue Wu <jingyue at google.com> wrote: > Hi Eric, > > In the IR, besides "target datalayout" and "target triple", we have a > special "target cpu" string which is set by the Clang front-end according to > its -target-cpu flag. We also write a Module::ge...

Hi, I am following the instructions on Writing an LLVM Pass on Darwin(8.7.0) powerpc. The loadable library is built. But "opt -load " gives error saying "Symbol not found". I am using LLVM 1.8. Could someone tell me how to fix it? I have tried the same procedure on Pentium4 Redhat9. Everything is ok there. So I think there must be some specific problem on Darwin that I should

...That’s an interesting case. AFAIK, inlining should be restricted here for > the reason you mention. Inlining should only be valid if it doesn’t > duplicate the barrier. Which nvcc shows this behavior? > > Adding Vinod and Yuan for comment. > > > On Aug 21, 2015, at 4:24 PM, Jingyue Wu <jingyue at google.com> wrote: > > > > Hi Justin, > > > > Is a compiler allowed to inline a function that calls __syncthreads? I > saw nvcc does that, but not sure it's valid though. For example, > > > > void foo() { > > __syncthreads(); &...

On Sun, 2006-08-27 at 21:57 -0500, Jing Yu wrote: > Hi, > Hi Jing, > I am following the instructions on Writing an LLVM Pass on > Darwin(8.7.0) powerpc. The loadable library is built. But "opt -load > " gives error saying "Symbol not found". I am using LLVM 1.8. Could > someone tell me how to fix it? I have tried the same procedure on > Pentium4 Redhat9.

...t that hook function called from your device code, you should merge the IR of the hook function and the IR of your device code into one IR (via linking or direct IR emitting) before the IR to PTX. On Wed, Mar 9, 2016 at 4:31 PM, Yuanfeng Peng <yuanfeng.jack.peng at gmail.com> wrote: > Hi Jingyue, > > Thanks for the instructions! I instrumented the device code and got a > binary of axpy.cu; however, the resulting executable always fails on the > first cudaMalloc call in host code (the kernel had not even been launched > yet), with the error code being 30 (cudaErrorUnknown)....

On Fri, Mar 4, 2016 at 5:50 PM, Yuanfeng Peng <yuanfeng.jack.peng at gmail.com> wrote: > Hi Jingyue, > > My name is Yuanfeng Peng, I'm a PhD student at UPenn. I'm sorry to bother > you, but I'm having trouble with gpucc in my project, and I would be really > grateful for your help! > > Currently we're trying to instrument CUDA code using LLVM 3.9, and I've &...

Eh? How do you envision this? -eric On Tue, Jun 17, 2014 at 2:09 PM, Jingyue Wu <jingyue at google.com> wrote: > Hi Nick, > > That makes sense. I think a main issue here is that the ranges of these PTX > special registers (e.g., threadIdx.x) depend on -target-cpu which is only > visible to clang and llc. Would you mind we specify "target cpu"...

Hi, I followed the instructions on http://llvm.org/docs/lnt/quickstart.html, and got stuck on installation Step 4. ~/mysandbox/bin/python ~/lnt/setup.py develop said running develop error: None and returned error code 1. The lnt binary wasn't installed anywhere. Any clue? Thanks much, Jingyue -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140808/f49a71ad/attachment.html>

+ the new llvm-dev On Fri, Aug 7, 2015 at 11:30 AM, Jingyue Wu <jingyue at google.com> wrote: > Hi folks, > > Unsurprisingly, leveraging the fact that certain address spaces don't > alias can significantly improve alias analysis precision and enhance > (observably 2x performance gain) load/store optimizations such as LICM and >...

On Fri, Aug 7, 2015 at 12:01 PM, Matt Arsenault <Matthew.Arsenault at amd.com> wrote: > On 08/07/2015 11:35 AM, Jingyue Wu wrote: > > + the new llvm-dev > > On Fri, Aug 7, 2015 at 11:30 AM, Jingyue Wu <jingyue at google.com> wrote: > >> Hi folks, >> >> Unsurprisingly, leveraging the fact that certain address spaces don't >> alias can significantly improve alias analys...

CostModule::getInstructionCost also consults TTI ( http://llvm.org/docs/doxygen/html/CostModel_8cpp_source.html#l00380). No? Jingyue On Wed, Jan 14, 2015 at 4:05 PM, Chandler Carruth <chandlerc at google.com> wrote: > > On Wed, Jan 14, 2015 at 3:54 PM, Jingyue Wu <jingyue at google.com> wrote: > >> I'm looking for APIs that compute instruction costs, and noticed several >> of them. >>...

Thanks for your help! After I installed the sandbox to /tmp/mysandbox instead of ~/mysandbox, everything starts to work. It still looks weird though. My home folder is not symlinked by the way. Jingyue On Sat Aug 09 2014 at 10:59:49 AM Renato Golin <renato.golin at linaro.org> wrote: > On 9 August 2014 02:56, Jingyue Wu <jingyue at google.com> wrote: > > I got > > Python 2.7.3 > > > > Sounds right? > > Yup, that's odd, I have never seen that erro...

On Aug 7, 2015, at 8:28 PM, Hal Finkel <hfinkel at anl.gov<mailto:hfinkel at anl.gov>> wrote: ________________________________ From: "Jingyue Wu" <jingyue at google.com<mailto:jingyue at google.com>> To: "Matt Arsenault" <Matthew.Arsenault at amd.com<mailto:Matthew.Arsenault at amd.com>> Cc: llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>, "Hal Finkel" <hfinkel at an...

Thanks! That’s probably close enough for practical purposes. I looked at the overrides on various targets, and they all return true if the FMA hardware exists. - Arch From: Jingyue Wu [mailto:jingyue at google.com] Sent: Wednesday, December 10, 2014 2:56 PM To: Robison, Arch Cc: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] Best way for JIT to query whether llvm.fma.* is fast? Does TargetLowering::isFMAFasterThanFMulAndFAdd (http://llvm.org/docs/doxygen/html/TargetLowering_8...