[llvm-bugs] [Bug 51692] New: symlinks creation is broken in LLVM 13 Windows build

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51692

            Bug ID: 51692
           Summary: symlinks creation is broken in LLVM 13 Windows build
           Product: Build scripts
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: cmake
          Assignee: unassignedbugs at nondot.org
          Reporter: arina.neshlyaeva at intel.com
                CC: llvm-bugs at lists.llvm.org

LLVM branch origin/release/13.x.
LLVM is built inside Github Actions "windows-2019" image using the following
command:

cmake -Thost=x64 -G "Visual Studio 16" -DCMAKE_INSTALL_PREFIX="..\bin-13.0"  
-DCMAKE_BUILD_TYPE=Release  -DLLVM_ENABLE_PROJECTS="clang"
-DLLVM_ENABLE_DUMP=ON   -DLLVM_ENABLE_ASSERTIONS=ON  -DLLVM_INSTALL_UTILS=ON 
-DLLVM_TARGETS_TO_BUILD=AArch64\;ARM\;X86 
-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly 
-DLLVM_LIT_TOOLS_DIR="C:\gnuwin32\bin" ..\llvm-13.0/llvm

The build and installation are reported as successful but symlinks are broken.

08/26/2021  02:59 AM                 0 clang++.exe
08/26/2021  02:59 AM                 0 llvm-lib.exe
08/26/2021  02:59 AM                 0 clang-cl.exe
08/26/2021  02:59 AM                 0 clang-cpp.exe
08/26/2021  02:43 AM        91,814,912 clang.exe

There is no issue before commit f37ea62e57b5e0e7b52102a2254288e205bfef89. So it
seems that "cmake -E create_symlink" command was not successful but error code
was not returned.

List of the tools installed inside "windows-2019" can be found here:
https://github.com/actions/virtual-environments/blob/main/images/win/Windows2019-Readme.md

You can access LLVM artifacts from mentioned build in Github Actions here:
https://github.com/ispc/ispc/suites/3636454262/artifacts/88150157

Link to the LLVM build log:
https://github.com/ispc/ispc/runs/3467483548

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