https://bugs.llvm.org/show_bug.cgi?id=40272

            Bug ID: 40272
           Summary: LLVM Visual Studio Toolchain no longer works with
                    Incredibuild
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Driver
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected], [email protected],
                    [email protected]

Prior to Clang 7.0.0, we shipped a LLVM-vs2015 toolchain file which required
the compiler to be named `CL.exe`, so we also generated a compiler driver of
that name from the buildsystem.

However, after Clang 7.0.0, we ship a new toolchain file which instructs
MSBuild to use `clang-cl.exe` as the compiler. This means that we no longer
ship a clang driver named `CL.exe`.

Incredibuild requires the compiler to be named `CL.exe`. If it is not so named,
Incredibuild does not distribute or parallelize the build. This means that
builds which ordinarily rely on Incredibuild are so slow that clang-cl can not
be adopted.

I suggest making clang-cl.exe work with Incredibuild again by some means.

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