similar to: [LLVMdev] LNT always using clang++ as linker command

Hi, I'm new to llvm and am trying to run benchmarks from the test-suite using lnt to check loop-vectorization for various benchmarks. Test are compiling and executing fine, but I am not getting optimization remarks while using flags like -Rpass-missed=loop-vectorize and -Rpass-analysis=loop-vectorize I've tried running it like this: lnt runtest test-suite --sandbox SANDBOX --cc

Hi, I follow quick-start guide http://llvm.org/docs/lnt/quickstart.html to run LLVM test-suite. It looks like I either make a mistake or the guide is not correct. Here is the command used to run nightly test: [[ $ lnt runtest nt --sandbox=$PWD/test-suite.bld \ --small --test-style=nightly \ --cc=$PWD/llvm.bld/Release+Asserts/bin/clang \ --cxx=$PWD/llvm.bld/Release+Asserts/bin/clang++

The issues seems to be this line in the tools Makefile timeit-target: timeit.c $(LD_ENV_OVERRIDES) $(LCC) -o $@ $< $(LDFLAGS) $(CFLAGS) $(TARGET_FLAGS) -O3 It should not add target flags if we are simulating the target on the host. On 06/06/2013 06:59 PM, reed kotler wrote: > I want to get lnt to use qemu for the execution. > > In that case, RHOST= is not set. > > But I

I want to get lnt to use qemu for the execution. In that case, RHOST= is not set. But I change the Arch because I am going to run in cross mode. Then I'm setting RUNUNDER to be a script which runs qemu. In this case it builds timeit-target as a Mips which fails because this is running on x86. ~/mysandbox/bin/lnt runtest nt --sandbox ~/mysandbox --cc /local/llvmpb_a/install/bin/clang

While porting my backends to llvm-3.2, I found a few places where the optimizers could have performed better. I believe the mainstream targets can also benefits from my tweaks. But before upstreaming my changes, I would like to quantify their merits on other applications --- not just my domain specific codes. In a word, it seemed the right time for me to start using LNT :) I followed the

Hi Since the buildbot host was updated to Fedora F20 levels, the clang buildbot has been failing with the following: $ /home/clangbuild/clang-ppc64-1/lnt.venv/bin/lnt runtest --verbose --submit http://llvm.org/perf/submitRun --commit=1 nt --sandbox nt --no-timestamp --cc /home/clangbuild/clang-ppc64-1/llvm.install.1/bin/clang --cxx /home/clangbuild/clang-ppc64-1/llvm.install.1/bin/clang++

Hello, When I was running the LNT testing for LLVM test-suite, it failed to submit the results to database. The command is: lnt runtest --submit db nt --sandbox sandbox --cc clang --cxx clang++ --test-suite ./test-suite-3.2/ --llvm-src ~/projects/llvm/llvm --llvm-obj ~/projects/llvm/llvm_build/ --test-style=nightly --only-test MultiSource/Benchmarks/mediabench/ When submitting the results

On 21 Apr 2016, at 17:44, Sergey Yakoushkin <sergey.yakoushkin at gmail.com<mailto:sergey.yakoushkin at gmail.com>> wrote: Hi Kristof, The way we use LNT, we would run different configuration (e.g. -O3 vs -Os) as different "machines" in LNT's model. O2/O3 is indeed bad example. We're also using different machines for Os/O3 - such parameters apply to all

> 2. Running lnt several times on the same unmodified clang+llvm binaries gives > different results (execution time can vary wildly : ~200%). I am running lnt > on linux/x86_64. I tried to deactivate the cpufreq thing, the machine was not > loaded, but this did not change. Is there any way to run the tests multiple > times and use statistics to get reproducible numbers (within a

I followed the lnt quickstart <http://llvm.org/docs/lnt/quickstart.html> directions but got this diagnostic when doing the setup: bash-3.2$ ~/mysandbox/bin/python ~/lnt/setup.py develop /Users/dcallahan/mysandbox/lib/python2.7/site-packages/setuptools/dist.py:284: UserWarning: The version spec\ ified requires normalization, consider using '0.4.1.dev0' instead of

Hi David, That's weird, I have setup LNT in multiple different distros and have never seen this. Looks like no one ever tested on the system you're running. Can you share a bit more of your environment? Also, you can check the setup.py to see if it does any stripping of package names, which could go wrong in the wrong environment. cheers, --renato On 29 January 2015 at 20:13, David

Hi, I would like to ask whether it is possible to test my own backend pass with LNT tool and LLVM Test Suite. I successfully installed LNT and downloaded LLVM Test Suite. Now I am able to run the tool with commant line option similar to this: lnt runtest nt --sandbox SANDBOX --cc ~/{path_to_clang}/clang --test-suite ~/{path_to_test_suite}/llvm-test-suite , but i have two main problems: 1) each

> On Feb 27, 2017, at 1:36 AM, Kristof Beyls via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hi Mikael, > > Some noisiness in benchmark results is expected, but the numbers you see seem to be higher than I'd expect. > A number of tricks people use to get lower noise results are (with the lnt runtest nt command line options to enable it between brackets): > *

Hi all, I am running LNT with LLVM/Clang 3.0 Release binary and test suite, here is my flow (most of them are the same as http://llvm.org/docs/lnt/quickstart.html). --- $ svn co http://llvm.org/svn/llvm-project/lnt/trunk ~/lnt $ ~/mysandbox/bin/python ~/lnt/setup.py develop $ cd mysandbox; source bin/activate $ $ lnt runtest nt \ --sandbox SANDBOX \ --cc

On Wed, Apr 11, 2012 at 7:59 PM, 陳韋任 <chenwj at iis.sinica.edu.tw> wrote: > Hi all, > >  I am running LNT with LLVM/Clang 3.0 Release binary and test suite, here is my > flow (most of them are the same as http://llvm.org/docs/lnt/quickstart.html). > > --- > $ svn co http://llvm.org/svn/llvm-project/lnt/trunk ~/lnt > $ ~/mysandbox/bin/python ~/lnt/setup.py develop >

On 22 Apr 2016, at 11:14, Mehdi Amini <mehdi.amini at apple.com<mailto:mehdi.amini at apple.com>> wrote: On Apr 22, 2016, at 12:45 AM, Kristof Beyls via llvm-dev <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote: On 21 Apr 2016, at 17:44, Sergey Yakoushkin <sergey.yakoushkin at gmail.com<mailto:sergey.yakoushkin at gmail.com>> wrote: Hi

On Wed, Sep 5, 2012 at 7:23 PM, Sean Silva <silvas at purdue.edu> wrote: > Hi, I'm trying to use LNT to run the test-suite. I followed the > instructions on <http://lnt.llvm.org/quickstart.html>. When I run it I > get this error: > > (mysandbox)sean:~/pg/others/llvm % lnt runtest nt --sandbox mysandbox > --cc ~/pg/others/llvm/release/bin/clang --test-suite

Hi! I have implemented a security feature in LLVM and now I want to evaluate the performance impact by comparing the perf profile of the originally compiled program and the modified program. For that I have run a benchmark with lnt runtest test-suite and -use-perf=all. I can compare the recorded counters in the lnt runserver webinterface perfectly fine with the side by side comparison. However,

Hi, I'm trying to use LNT to run the test-suite. I followed the instructions on <http://lnt.llvm.org/quickstart.html>. When I run it I get this error: (mysandbox)sean:~/pg/others/llvm % lnt runtest nt --sandbox mysandbox --cc ~/pg/others/llvm/release/bin/clang --test-suite test-suite nt.py:1185: note: inferred C++ compiler under test as:

Two other things: 1) I get massively more stable execution times on 16.04 than on 14.04 on both x86 and ARM because 16.04 does far fewer gratuitous moves from one core to another, even without explicit pinning. 2) turn off ASLR: "echo 0 > /proc/sys/kernel/randomize_va_space". As well as getting stable addresses for debugging repeatability, it also stabilizes execution time