tools/msbuild/llvm-general.xml

<?xml version="1.0" encoding="utf-8"?>
<Rule
      Name="LLVMGeneral"
      DisplayName="LLVM"
      PageTemplate="generic"
      Description="LLVM"
      xmlns="http://schemas.microsoft.com/build/2009/properties">
  <Rule.Categories>
    <Category Name="General" DisplayName="General" Description="General" />
  </Rule.Categories>
  <Rule.DataSource>
    <DataSource Persistence="ProjectFile" Label="LLVM" />
  </Rule.DataSource>

  <BoolProperty Name="UseClangCl" 
                DisplayName="Use clang-cl" 
                Description="Use clang-cl for compiling.  If this option is disabled, the Microsoft compiler (cl.exe) will be used instead." 
                Category="General" 
                Default="true">
  </BoolProperty>
  <StringProperty Name="ClangClExecutable"
                  DisplayName="clang-cl Executable"
                  Description="Specifies the path to clang-cl.exe."
                  Category="General"
                  Default="$(LLVMInstallDir)bin\clang-cl.exe"
                  Subtype="file">
  </StringProperty>

  <StringProperty Name="ClangClAdditionalOptions"
                  DisplayName="Additional Compiler Options"
                  Description="Additional options to pass to clang.  This is essentially the same as C/C++ > Command Line > Additional Options, except that it is safe to put options here that will be rejected by cl.exe in case you switch toolchains back and forth."
                  Category="General">
  </StringProperty>

  <BoolProperty Name="UseLldLink"
                DisplayName="Use lld-link"
                Description="Use lld-link for linking.  If this option is disabled, the Microsoft linker (link.exe) will be used instead."
                Category="General"
                Default="true">
  </BoolProperty>
  <StringProperty Name="LldLinkExecutable"
                  DisplayName="lld-link Executable"
                  Description="Specifies the path to lld-link.exe."
                  Category="General"
                  Default="$(LLVMInstallDir)bin\lld-link.exe"
                  Subtype="file">
  </StringProperty>

  <StringProperty Name="LldLinkAdditionalOptions"
                  DisplayName="Additional Linker Options"
                  Description="Additional options to pass to lld-link.  This is essentially the same as General > Linker > Command Line > Additional Options, except that it is safe to put options here that will be rejected by link.exe in case you switch toolchains back and forth."
                  Category="General">
  </StringProperty>

</Rule>