FAIL: libomptarget :: offloading/parallel_offloading_map.cpp on rolling distros and Ubuntu 20.10

[Quuxplusone]

Bugzilla Link	PR49533
Status	NEW
Importance	P normal
Reported by	Neil Nelson (nnelson@infowest.com)
Reported on	2021-03-10 17:58:16 -0800
Last modified on	2021-09-27 10:15:30 -0700
Version	unspecified
Hardware	PC Linux
CC	bryanpkc@gmail.com, htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, lukebenes@hotmail.com
Fixed by commit(s)
Attachments
Blocks
Blocked by
See also	PR49250, PR51150

FAIL: libomptarget :: offloading/parallel_offloading_map.cpp (84762 of 89700)
******************** TEST 'libomptarget ::
offloading/parallel_offloading_map.cpp' FAILED ********************
Script:
--
: 'RUN: at line 1';   echo ignored-command
: 'RUN: at line 2';   echo ignored-command
: 'RUN: at line 3';   echo ignored-command
: 'RUN: at line 4';   /home/nnelson/Documents/llvm-project/build/./bin/clang++ -
fopenmp -pthread -fno-experimental-isel  -I /home/nnelson/Documents/llvm-
project/openmp/libomptarget/test -I /home/nnelson/Documents/llvm-
project/build/projects/openmp/runtime/src -L /home/nnelson/Documents/llvm-
project/build/projects/openmp/libomptarget -L /home/nnelson/Documents/llvm-
project/build/lib  -fopenmp-targets=x86_64-pc-linux-gnu
/home/nnelson/Documents/llvm-
project/openmp/libomptarget/test/offloading/parallel_offloading_map.cpp -o
/home/nnelson/Documents/llvm-
project/build/projects/openmp/libomptarget/test/offloading/Output/parallel_offloading_map.cpp.tmp-
x86_64-pc-linux-gnu && /home/nnelson/Documents/llvm-
project/build/projects/openmp/libomptarget/test/offloading/Output/parallel_offloading_map.cpp.tmp-
x86_64-pc-linux-gnu | /home/nnelson/Documents/llvm-
project/build/./bin/FileCheck /home/nnelson/Documents/llvm-
project/openmp/libomptarget/test/offloading/parallel_offloading_map.cpp
: 'RUN: at line 5';   echo ignored-command
--
Exit Code: 2

Command Output (stdout):
--
$ ":" "RUN: at line 1"
note: command had no output on stdout or stderr
$ "echo" "ignored-command"
# command output:
ignored-command

$ ":" "RUN: at line 2"
note: command had no output on stdout or stderr
$ "echo" "ignored-command"
# command output:
ignored-command

$ ":" "RUN: at line 3"
note: command had no output on stdout or stderr
$ "echo" "ignored-command"
# command output:
ignored-command

$ ":" "RUN: at line 4"
note: command had no output on stdout or stderr
$ "/home/nnelson/Documents/llvm-project/build/./bin/clang++" "-fopenmp" "-
pthread" "-fno-experimental-isel" "-I" "/home/nnelson/Documents/llvm-
project/openmp/libomptarget/test" "-I" "/home/nnelson/Documents/llvm-
project/build/projects/openmp/runtime/src" "-L" "/home/nnelson/Documents/llvm-
project/build/projects/openmp/libomptarget" "-L" "/home/nnelson/Documents/llvm-
project/build/lib" "-fopenmp-targets=x86_64-pc-linux-gnu"
"/home/nnelson/Documents/llvm-
project/openmp/libomptarget/test/offloading/parallel_offloading_map.cpp" "-o"
"/home/nnelson/Documents/llvm-project/build/projects/openmp/libomptarget/test/offloading/Output/parallel_offloading_map.cpp.tmp-x86_64-pc-linux-gnu"
note: command had no output on stdout or stderr
$ "/home/nnelson/Documents/llvm-
project/build/projects/openmp/libomptarget/test/offloading/Output/parallel_offloading_map.cpp.tmp-x86_64-pc-linux-gnu"
# command stderr:
parallel_offloading_map.cpp.tmp-x86_64-pc-linux-gnu:
/home/nnelson/Documents/llvm-
project/openmp/libomptarget/test/offloading/parallel_offloading_map.cpp:35: int
main(int, char **): Assertion `array[i] == ref' failed.

error: command failed with exit status: -6
$ "/home/nnelson/Documents/llvm-project/build/./bin/FileCheck"
"/home/nnelson/Documents/llvm-project/openmp/libomptarget/test/offloading/parallel_offloading_map.cpp"
# command stderr:
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/nnelson/Documents/llvm-
project/build/./bin/FileCheck /home/nnelson/Documents/llvm-
project/openmp/libomptarget/test/offloading/parallel_offloading_map.cpp

error: command failed with exit status: 2
This bug obtained with the following sequence.
Xubuntu 20.10.

From the Ubuntu distribution
clang++ --version
Ubuntu clang version 11.0.0-2

git command executed close to 9pm Mar. 9, 2021, Mountain Standard Time.
git clone https://github.com/llvm/llvm-project.git
cd llvm-project
mkdir build
cd build

cmake -G Ninja -DLLVM_ENABLE_PROJECTS="clang;llvm;clang-tools-extra;compiler-
rt;flang;libc;libclc;libcxx;libcxxabi;libunwind;lld;lldb;mlir;openmp;parallel-
libs;polly;pstl;utils" -DLLVM_USE_LINKER=lld -DCMAKE_BUILD_TYPE="Release" -
DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_ENABLE_LIBPFM=OFF -
DRUN_HAVE_GNU_POSIX_REGEX=0 -DLLVM_LIBC_ENABLE_LINTING=ON -Wno-dev ../llvm &>
~/Documents/cmake.log

ninja -j 31 &> ~/Documents/ninja.log
ninja -j 31 check-all &> ~/Documents/check-all.log

From check-all.log
Failed Tests (11):
  Builtins-i386-linux :: muldc3_test.c
  HWAddressSanitizer-x86_64 :: TestCases/global.c
  SanitizerCommon-asan-i386-Linux :: Linux/crypt_r.cpp
  SanitizerCommon-asan-i386-Linux :: Posix/crypt.cpp
  SanitizerCommon-lsan-i386-Linux :: Linux/crypt_r.cpp
  SanitizerCommon-lsan-i386-Linux :: Posix/crypt.cpp
  SanitizerCommon-ubsan-i386-Linux :: Linux/crypt_r.cpp
  SanitizerCommon-ubsan-i386-Linux :: Posix/crypt.cpp
  libomptarget :: offloading/memory_manager.cpp
  libomptarget :: offloading/parallel_offloading_map.cpp
  lldb-api :: tools/lldb-vscode/runInTerminal/TestVSCode_runInTerminal.py

Testing Time: 467.65s
  Unsupported      : 23487
  Passed           : 66034
  Expectedly Failed:   168
  Failed           :    11

[Quuxplusone]

This failure appears to affect newer distros. I'm seeing the parallel_offloading_map.cpp failure with OpenSUSE Tumbleweed 20210428, gcc 10.3. The same system passes these tests under Ubuntu 20.4. Shilei suggested this could be related to Bug 48330 or elf64 using libffi.

[Quuxplusone]

I see this failure on Ubuntu 18.04 (both x86_64 and aarch64) and CentOS 7.7 (aarch64). I build LLVM with GCC 9.3. libelf and libffi development packages are provided by the operating systems.

[Quuxplusone]

The parallel_offloading_map.cpp test has been disabled for x86_64-pc-linux-gnu

https://github.com/llvm/llvm-project/commit/ad0f6e1d984067a3dc81c17abcdd2fc3c7ff9946