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It looks like building ZERO_CHECK first to reconstruct the project files as needed, then running msbuild a second time to do the actual build, has solved the problem. At least, last night's run didn't take the usual two tries. Running msbuild twice is a little bit simpler than running cmake explicitly, the way I have my scripts set up, but I'm sure that would work as well. Thanks

With VS2013 I found that editing a CMakeLists.txt file caused CMake to be re-run successfully and the build to also continue successfully, but since I switched to VS2015 the CMake re-run occurs - apparently successfully, but more often than not the build failed afterwards from either the IDE and from MSBuild. Since I seldom change the CMakeLists.txt files, I simply do a clean CMake configuration

>From my own experience this is what I think happens when building the whole solution through Visual Studio's UI. This also happens for building individual projects. I assume something similar happens when building via the command-line, but I rarely do that, so I can't be certain. 1) Visual Studio/MSBuild (I don't know which, but probably MSBuild) determines the dependency graph of

Hi Mehdi! I think the value to upstream (of doing mass reformatting in fewer commits) has to do with the intrusion of nonfunctional commits into `git blame` kinds of research. Every line that someone touches for a formatting reason necessarily obscures the history of functional changes in that block of code. The fewer of those that people have to work around, the better. I admit this is a

I'm not sure if this helps, but here it is in case it does. I typically use bugpoint in a way as to keep the actual failure that I'm after. For example, with the test case you've pasted, I was looking for a specific assert. So I used bugpoint this way: $ cat reduceme.sh #!/bin/bash llc -filetype=obj $1 2>&1 | grep 'Cannot lower calls with arbitrary operand bundles'

I think MSBuild isn't capable of re-running cmake and then reloading the project files when CMakeLists.txt changes. It re-runs cmake, but then continues the build with the stale projects. That probably explains the "PipSqueek.cxx doesn't exist" errors. As for the link error, it could also be caused by things like a file rename not getting picked up by MSBuild. The fix is

msbuild is is able to re-run cmake if a CMakeLists.txt changes. CMake adds a special project "ZERO_CHECK" that does this. However, I am not sure it runs when invoking on the individual projects instead of the solution. Try the cmake --build command, which should output the following: > cmake --build . --target opt CMake is re-running because

In our fork of LLVM we often need to reduce a crash testcase for a specific assertion. After writing lots of "only give me this specific assertion" scripts like the above I decided to write a script that automates all this for me: <https://github.com/CTSRD-CHERI/clang/blob/master/utils/creduce_crash_testcase.py>. (It's called creduce_crash_test.py but it will actually use

Here are a couple of representative errors. C:\Dev\upstream\gitmono is where I keep my clone. "C:\Dev\upstream\gitmono\wbuild\ALL_BUILD.vcxproj" (Rebuild target) (1) -> "C:\Dev\upstream\gitmono\wbuild\unittests\Support\DynamicLibrary\SecondLib.vcxproj" (default target) (170:2) -> c1xx : fatal error C1083: Cannot open source file:

Valentin, in terms of limitations as Sean pointed out, an important one is that .mir doesn't have MachineFunctionInfo which may result in failure on accesses to global variables due to use of register X2. The verifier considers it an undefined register. Also, it's probably easier to reduce test cases using bugpoint starting from an IR test case. With the code you provided, I get a

Hi Philip, I think you might be reading more into the suggestion/discussion than is actually there. * I do not want upstream developers "trying to be polite" if that delays otherwise worthwhile work. Nobody suggested that. It’s perfectly possible to “be polite” and still not delay worthwhile work. * The current policy is "downstream is on their own". Nobody

Thank you both! I was running into the issue that bugpoint was reducing my test-case into other failures and I hadn't managed yet to find the right point in the Julia pass pipeline to insert the module to reproduce the issue reliably from llc and that's why I started looking at using the MIR. I will go back at looking at the pass pipeline and the IR and get a reproducer that way!

What kind of missing symbols are you getting? I had to work around dependencies for a Mingw32 build. See https://reviews.llvm.org/D44650 On Wed, May 16, 2018, 13:13 via llvm-dev <llvm-dev at lists.llvm.org> wrote: > I have the git monorepo, and Visual Studio 2015. I am finding that > running a build from the command line with msbuild (as a nightly job) > invariably fails on the

Adding Alexey here who has been driving this effort in llvm. There are about 5 patches waiting on my review: -: https://reviews.llvm.org/D54320 -: https://reviews.llvm.org/D46189 -: https://reviews.llvm.org/D51554 -: https://reviews.llvm.org/D46061 -: https://reviews.llvm.org/D45784 After which I think we're good. -eric On Mon, Dec 3, 2018 at 6:29 PM Valentin Churavy via

Hi Alex, Eric and Valentin, Thanks for the information. I don't mean to push this but I'm in desperate need of debugging some cuda code. I'm not familiar with the llvm internal but it sounds like there's at least line info now, right? If so, can you point me to a branch of llvm that can help tracing the bug down to certain line of code. I believe my bug is simply a write/read

Hello Valentin, To generate a mir test case i think the process is to first create an IR file by passing '-S -emit-llvm' to clang, then you can feed that file into llc and use stop-before to get the mir just before the if-converter pass, eg: `llc -stop-before=if-converter -simplify-mir -o test.mir test.ll`. Also there is a MIR language reference: https://llvm.org/docs/MIRLangRef.html

Just ran into the same problem, but with `-DLLVM_BUILD_TOOLS=ON` since the tools link against shlib and use the C++ interface I can't use Cosmin's solution. I managed to get through with using `RelWithDebInfo` instead of `Debug` On Sat, Jun 22, 2019 at 5:20 AM Cosmin Apreutesei via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Update: looks like the the problem was that the

Are you planning to release this as soon as it's ready or you want to make it into a major release? Is it possible to let me know (maybe by replying to this thread) once the code is ready? I know sometimes it takes a while to get things in the major release. I greatly appreciate your work on this! Thanks, Char 在 2018-12-15 05:19:50，"Alexey Bataev" <a.bataev at outlook.com>

Hello, I am trying to isolate an assertion failure in if-converter (on PPC) and I generated a textual debuglog with: ``` LLVM_ARGS=-print-before-all -print-module-scope -filter-print-funcs=japi1__require_7687 ``` and after splicing out the the MIR before the if-converter pass I would like to run `llc -march=ppc64le -run-pass=if-converter input.mir` so that I can start minimising the MIR. This

I have the git monorepo, and Visual Studio 2015. I am finding that running a build from the command line with msbuild (as a nightly job) invariably fails on the first try, and succeeds on a retry. The first msbuild command looks like this: msbuild ALL_BUILD.vcxproj /p:Configuration="RelWithDebInfo" /m:6 /t:Rebuild This appears to compile everything okay, but invariably fails with