[llvm-bugs] [Bug 50031] New: On s390x: Ubuntu Hirsute - binary fails with "terminate called after throwing an instance of 'std::system_error'"

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=50031

            Bug ID: 50031
           Summary: On s390x: Ubuntu Hirsute  - binary fails with
                    "terminate called after throwing an instance of
                    'std::system_error'"
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: SystemZ
          Assignee: unassignedbugs at nondot.org
          Reporter: sylvestre at debian.org
                CC: llvm-bugs at lists.llvm.org

With the latest Ubuntu Hirsute (21.04), binaries fails to start with:

cd
"/root/llvm-toolchain-11-11.1.0~++20210405103929+1fdec59bffc1/build-llvm/include/llvm/IR"
&& ../../../bin/llvm-tblgen -gen-attrs -I
/root/llvm-toolchain-11-11.1.0~++20210405103929+1fdec59bffc1/llvm/include/llvm/IR
-I
/root/llvm-toolchain-11-11.1.0~++20210405103929+1fdec59bffc1/build-llvm/include
-I /root/llvm-toolchain-11-11.1.0~++20210405103929+1fdec59bffc1/llvm/include
/root/llvm-toolchain-11-11.1.0~++20210405103929+1fdec59bffc1/llvm/include/llvm/IR/Attributes.td
--write-if-changed -o
/root/llvm-toolchain-11-11.1.0~++20210405103929+1fdec59bffc1/build-llvm/include/llvm/IR/Attributes.inc
terminate called after throwing an instance of 'std::system_error'
  what():  Unknown error -1
Aborted (core dumped)

Or easier:
./build-llvm/bin/llvm-tblgen 
terminate called after throwing an instance of 'std::system_error'
  what():  Unknown error -1
Aborted (core dumped)

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