builds are failing

Project Infrastructure LLVM Dev List Archives
1

I am seeing in the last couples of days llvm plus other projects builds are
failing, is this being worked on?

2

Hi Itaru,

(this time with the list CC'ed)

I am not sure what failure you see but our buildbots look mostly green: http://lab.llvm.org:8011/waterfall

Please provide more details as it is hard to determine if this is an LLVM issue or not.

Thanks,
Johannes

3

Without seeing more details it's impossible to tell, but it might have been me.

https://github.com/llvm/llvm-project/commit/6102310d814ad73eab60a88b21dd70874f7a056f#diff-0f9a49c4e31c311a0010e126cd785f08
changed PHI node equality check, but there were some users that
implicitly depended
on the old definition of the PHI equality, and didn't verify their
implicit assumptions with reality,
which eventually manifested as stage2-stage3 clang mismatches.

This was finally fixed in
https://github.com/llvm/llvm-project/commit/5ec2b757cc7d37ff0d03b36ee863b0962fe78108
and they have been taught to check with reality in
https://github.com/llvm/llvm-project/commit/961483a5ea7c0e628c025187287d1658457ffcb3
so this should be caught earlier next time.

Roman

4

Johannes, Roman,

Thanks for responding to my report.

[2492/4583] Building CXX object
tools/clang/lib/ARCMigrate/CMakeFiles/obj.clangARCMigrate.dir/TransAutoreleasePool.cpp.o
[2493/4583] Building AMDGPUGenGlobalISel.inc...
FAILED: lib/Target/AMDGPU/AMDGPUGenGlobalISel.inc
cd /slurm/scratch/10996/202008301514 &&
/slurm/scratch/10996/202008301514/bin/llvm-tblgen -gen-global-isel -I
/tmp/llvm-project/llvm/lib/Target/AMDGPU -I
/home/users/itaru.kitayama/projects/spack/opt/spack/linux-centos8-thunderx2/gcc-8.3.1/libxml2-2.9.10-urehecrjmaks7z77mdgi33msmcuxudm5/include/libxml2
-I /slurm/scratch/10996/202008301514/include -I
/tmp/llvm-project/llvm/include -I /tmp/llvm-project/llvm/lib/Target
/tmp/llvm-project/llvm/lib/Target/AMDGPU/AMDGPUGISel.td
--write-if-changed -o lib/Target/AMDGPU/AMDGPUGenGlobalISel.inc -d
lib/Target/AMDGPU/AMDGPUGenGlobalISel.inc.d
PLEASE submit a bug report to https://bugs.llvm.org/ and include the
crash backtrace.
Stack dump:
0. Program arguments:
/slurm/scratch/10996/202008301514/bin/llvm-tblgen -gen-global-isel -I
/tmp/llvm-project/llvm/lib/Target/AMDGPU -I
/home/users/itaru.kitayama/projects/spack/opt/spack/linux-centos8-thunderx2/gcc-8.3.1/libxml2-2.9.10-urehecrjmaks7z77mdgi33msmcuxudm5/include/libxml2
-I /slurm/scratch/10996/202008301514/include -I
/tmp/llvm-project/llvm/include -I /tmp/llvm-project/llvm/lib/Target
/tmp/llvm-project/llvm/lib/Target/AMDGPU/AMDGPUGISel.td
--write-if-changed -o lib/Target/AMDGPU/AMDGPUGenGlobalISel.inc -d
lib/Target/AMDGPU/AMDGPUGenGlobalISel.inc.d
#0 0x000000000044d07c PrintStackTraceSignalHandler(void*)
(/slurm/scratch/10996/202008301514/bin/llvm-tblgen+0x44d07c)
[2494/4583] Building CXX object
lib/Target/MSP430/CMakeFiles/LLVMMSP430CodeGen.dir/MSP430MCInstLower.cpp.o

I'm building LLVM on ThunderX2, if CMake configuration is needed, I'll
post it as well.

5

All,

Following up on my report, it was due to the CUDA Toolkit built with
Spack. Rebuilding it
with the CentOS 8's default GCC 8.3.1, the build went fine again with
the CMake configuration
I've been using it.