Assertion failed in `llvm/include/llvm/IR/Instructions.h` while building a SYCL application

[fwyzard]

Describe the bug

While building a SYCL application, clang/llvm aborts due to a failed assertion in llvm/include/llvm/IR/Instructions.h:

clang-17: /data/user/fwyzard/sycl/llvm/llvm/include/llvm/IR/Instructions.h:972: static llvm::GetElementPtrInst* llvm::GetElementPtrInst::Create(llvm::Type*, llvm::Value*, llvm::ArrayRef<llvm::Value*>, const llvm::Twine&, llvm::Instruction*): Assertion `cast<PointerType>(Ptr->getType()->getScalarType()) ->isOpaqueOrPointeeTypeMatches(PointeeType)' failed.

The full error message from the original compilation is attached: message.txt.

To Reproduce Please find attached a preprocessed file that reproduces the problem: gpuVertexFinder.ii.gz .

The failure can be reproduced with

gunzip gpuVertexFinder.ii.gz
clang++ -std=c++17 -O2 -fPIC -pipe -pthread -g -fsycl gpuVertexFinder.ii -o gpuVertexFinder.o

using the latest nightly.

The nightly itself was built with

python3 llvm/buildbot/configure.py --cmake-opt=-DCMAKE_INSTALL_PREFIX=/data/user/fwyzard/sycl/install/sycl-nightly/20230805_160000 -o /data/user/fwyzard/sycl/build/sycl-nightly/20230805_160000 --cmake-gen 'Unix Makefiles' --cuda --cmake-opt=-DCUDA_TOOLKIT_ROOT_DIR=/cvmfs/patatrack.cern.ch/externals/x86_64/rhel8/nvidia/cuda-11.8.0 --hip --hip-platform AMD --cmake-opt=-DSYCL_BUILD_PI_HIP_ROCM_DIR=/cvmfs/patatrack.cern.ch/externals/x86_64/rhel8/amd/rocm-5.4.0 --enable-all-llvm-targets --disable-fusion --shared-libs -t Release
make -C /data/user/fwyzard/sycl/build/sycl-nightly/20230805_160000 -j 24 all sycl-toolchain install

from the commit 8e0cc4b7a845df9389a1313a3e680babc4d87782 corresponding to the tag sycl-nightly/20230805_160000 .

The full build log is attached: build-sycl_nightly_20230805_160000.log.gz .

Environment (please complete the following information):

• OS: Linux, observed on Ubuntu 22.04 and on RHEL 8.7
• Target device and vendor: spir64, for JIT to Intel CPU and GPU
• DPC++ version: 8e0cc4b7a845df9389a1313a3e680babc4d87782
• Dependencies version: OpenCL CPU runtime 2023.15.3.0.20

Additional context We suspect that the problem exists since some time; see an earlier report on our internal project here: https://github.com/AuroraPerego/pixeltrack-standalone/issues/6 .

The program compiles and runs successfully using oneAPI 2023.2.0, and older versions of the open source SYCL compiler.

[fwyzard]

@AuroraPerego @igorvorobtsov FYI

[maarquitos14]

@fwyzard sorry for the delay. I have just tried to reproduce the issue and I'm getting a different issue than the one shown in message.txt. May I ask to try with the latest nightly and share the result? Thank you in advance!

[github-actions[bot]]

This issue is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be automatically closed in 30 days.

[fwyzard]

@maarquitos14 thanks for your patience. I finally tried with the current nightly build, and the (original) file compiles without issues.