[llvm-dev] Build Error from mlir-capi-ir-test

[Vermeersch, Aaron via llvm-dev]

Hello,

I pulled from git again and re-did the installation. I didn't make it far enough into the installation to test the issue that I had as the installation failed with this:


[ 49%] Built target LLVMXCoreCodeGen

[ 49%] Built target LLVMXCoreDisassembler

[ 49%] Linking CXX shared library ../../lib/libLTO.so

/usr/bin/ld:/p/work1/avermeer/llvm-project/build/tools/lto/LTO.exports:3: syntax error in VERSION script

collect2: error: ld returned 1 exit status

make[3]: *** [lib/libLTO.so.12git] Error 1

make[2]: *** [tools/lto/CMakeFiles/LTO.dir/all] Error 2

make[1]: *** [CMakeFiles/check-all.dir/rule] Error 2

make: *** [check-all] Error 2



​Aaron Vermeersch

HPCMP PET Computational Scientist
M   517.648.9980

aaron.vermeersch at gdit.com

www.gdit.com<http://www.gdit.com>

[cid:image001.png at 01D664F5.C0E0A040]



________________________________
From: Mehdi AMINI <joker.eph at gmail.com>
Sent: Tuesday, January 12, 2021 4:34 PM
To: Vermeersch, Aaron <Aaron.Vermeersch at gdit.com>
Cc: llvm-dev at lists.llvm.org <llvm-dev at lists.llvm.org>
Subject: Re: [llvm-dev] Build Error from mlir-capi-ir-test


 [External: Use caution with links & attachments]

Hi,

It seems like you were unlucky and checked out a buggy revision: this was a known bug a couple of days ago. Please git pull and try again, let us know if you have any issues!

Also MLIR folks communicate mainly here: https://llvm.discourse.group/c/mlir/31<https://urldefense.us/v2/url?u=https-3A__llvm.discourse.group_c_mlir_31&d=DwMFaQ&c=kBZcWdBOH-UDm7cX7sUnio9i4Dr7DDged-ltBm3Bq7Y&r=_ZfOCgFouUhaMZw8Eekg6AE3jogUblRXCLkTpccaBEM&m=c9B0CmUi9msp4zzuInINlYkTjXu3mJiJO4E3WDHFfKo&s=EG3h7Vr3DXCi2dGxcvVJ_VNtGIlkHIsBzNcXlvSUW58&e=>

Best,

--
Mehdi


--
Mehdi




On Tue, Jan 12, 2021 at 1:29 PM Vermeersch, Aaron via llvm-dev <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote:
Hello,

I'm having an issue installing LLVM and Flang on a SGI and Cray machine and both are giving me the same error. This is using the latest version from GitHub that I just downloaded. I use the following for the cmake instruction:


cmake -G "Unix Makefiles" -DLLVM_ENABLE_PROJECTS=flang -DCMAKE_INSTALL_PREFIX=install_prefix -DCMAKE_CXX_COMPILER=pathway_to_g++ -DCMAKE_C_COMPILER=pathway_to_gcc ../llvm

The installation crashes with the following message:


Scanning dependencies of target mlir-capi-ir-test

[ 78%] Building C object tools/mlir/test/CAPI/CMakeFiles/mlir-capi-ir-test.dir/ir.c.o

[ 78%] Linking C executable ../../../../bin/mlir-capi-ir-test

CMakeFiles/mlir-capi-ir-test.dir/ir.c.o: In function `printAffineExpr':

/llvm-project/mlir/test/CAPI/ir.c:1272: undefined reference to `mlirAffineExprIsNull'

collect2: error: ld returned 1 exit status

make[2]: *** [bin/mlir-capi-ir-test] Error 1

make[1]: *** [tools/mlir/test/CAPI/CMakeFiles/mlir-capi-ir-test.dir/all] Error 2

make: *** [all] Error 2

In a previous build, I was able to use:


cmake --build . --target check-mlir

Following the instructions here: https://github.com/tensorflow/mlir/issues/138<https://urldefense.us/v2/url?u=https-3A__github.com_tensorflow_mlir_issues_138&d=DwMFaQ&c=kBZcWdBOH-UDm7cX7sUnio9i4Dr7DDged-ltBm3Bq7Y&r=_ZfOCgFouUhaMZw8Eekg6AE3jogUblRXCLkTpccaBEM&m=c9B0CmUi9msp4zzuInINlYkTjXu3mJiJO4E3WDHFfKo&s=NO9T5JyaOTnaEa4PSUpz0f7wABN1K5amrihKUtCj0GU&e=> to fix a similar issue but it hasn't been successful this time. Does anyone know what might be happening and how to fix the issue?


​Aaron Vermeersch

HPC Computational Scientist



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