Add MSVC Component Llvm ClangToolset to VM

[MVoz]

https://github.com/reupen/azure-pipelines-image-generation/blob/master/images/win/scripts/Installers/Vs2019/Install-VS2019.ps1

https://github.com/microsoft/azure-pipelines-image-generation/pull/1297/files

[MVoz]

argument(s): "The directory is not empty.

error (x64_uwp) OR (arm_uwp) !?

[MVoz]

example of using LLVM in another folder

<LLVMInstallDir>PATH_TO_LLVM</LLVMInstallDir>

msbuild /p:LLVMInstallDir="C:\Program Files (x86)\LLVM" /p:PlatformToolset="ClangCL"

[BillyONeal]

What is the use case you intend to enable with this?

[BillyONeal]

This creates the liklihood of the installed bits changing a lot over time, so I don't think we should do that.

[MVoz]

@BillyONeal
#11140

[MVoz]

😕

[MVoz]

the project apparently does not want to develop

[BillyONeal]

@voskrese It isn't that 'we don't want to develop' -- I've been blocked from updating the VMs due to an unrelated issue. That's a heavy switch to flip since we need to get a clean baseline run when we do that. I've applied the install of LLVM over here: #11365

As for 'are we going to add that as a triplet', that's a different question. Given that we ship LLVM in the box though it might make sense. /cc @ras0219-msft @ras0219

[MVoz]

ok

I needed only Microsoft.VisualStudio.Component.VC.Llvm.ClangToolset

but without the dependencies of Microsoft.VisualStudio.Component.VC.Llvm.Clang it won't install

triplet's - were for testing, and showing features

[BillyONeal]

but without the dependencies of Microsoft.VisualStudio.Component.VC.Llvm.Clang it won't install

I observe the installer adding the right dependencies; I did this testing with 16.6. Rest assured when I get a VM update landed I'll make sure it's on the box

[MVoz]

okey

[BillyONeal]

@voskrese I believe your VM changes landed in #11365