<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/56948>56948</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Building LLVM of all components fails
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          zky97
      </td>
    </tr>
</table>

<pre>
    Build and compile environment
OS Windows11
python version 3.10.0
cmake version 3.23.1
ninja version 1.11.0
MinGW64 version 8.1.0_x86_64-posix-seh-rev0,
GNU Make version 4.2.1
RAM 64GB
cmake command：
`cmake -G "Ninja" -DLLVM_PARALLEL_LINK_JOBS="1" -DLLVM_PARALLEL_LINK_JOBS="1" 
            ../llvm 
            -DCMAKE_BUILD_TYPE="Debug" 
            -DCMAKE_INSTALL_PREFIX="G:\LLVM\Build" 
            -DCMAKE_C_FLAGS="-Wa,-mbig-obj" 
            -DCMAKE_CXX_FLAGS="-Wa,-mbig-obj" 
            -DLLVM_LIBC_MPFR_INSTALL_PATH="C:\Users\zky19\MPFR" 
            -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra;cross-project-tests;libclc;lld;lldb;polly;bolt;mlir;flang" 
            -DLLVM_ALL_RUNTIMES="ALL" 
            -DCMAKE_CXX_STANDARD="14" 
            -DLLVM_ENABLE_Z3_SOLVER="ON" 
            -DLLVM_OPTIMIZED_TABLEGEN="ON" 
            -DLLVM_TARGET_ARCH="host" 
            -DLLVM_USE_CRT_DEBUG="MT"`

Prompt when compiling with Ninja:
            Failed to close file obj file too large
            and
            `G:/LLVM/Source/lld/ELF/Symbols.cpp:28:35: error: static assertion failed: SymbolUnion too large
            static_assert(sizeof(SymbolUnion) <= 64, "SymbolUnion too large");`


</pre>
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