[llvm-dev] Newbie question on building with Visual Studio

[Adrian McCarthy via llvm-dev]

I think David is on the right track.  From your build output, it looks like
it was asked to build only the LLVMTableGen project, which corresponds to
the library.  If you just ask Visual Studio to build the solution (F7, or
Build menu -> Build Solution) rather than an individual project.  It looks
like Cmake put all the right project dependency information into the
solution, so it should just work.

For LLVM, however, I usually use ninja to build outside Visual Studio.  It
does a better job building things in parallel and keeping all the cores
working.  I find the Visual Studio solution for LLVM is still very useful
for all of its editing, browsing, and debugging features.

On Thu, Aug 6, 2020 at 3:06 PM David Blaikie via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> I don't work on Windows, so have next to no idea - but when you say
> you "aske it to build TableGen" what do you mean, specifically?
> Perhaps you asked it to build the TableGen library - so that's what it
> did? Can you instead ask it to build llvm-tblgen?
>
> On Thu, Aug 6, 2020 at 2:12 PM Paul C. Anagnostopoulos via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> >
> > I made a simple edit to TGlexer.h, which is part of TableGen. Then, in
> Visual Studio, I asked it to build Tablegen. I got the following output:
> >
> > 1>------ Build started: Project: LLVMTableGen, Configuration: Release
> x64 ------
> > 1>Main.cpp
> > 1>TGLexer.cpp
> > 1>TGParser.cpp
> > 1>LLVMTableGen.vcxproj -> D:\LLVM\Build\Release\lib\LLVMTableGen.lib
> > ========== Build: 1 succeeded, 0 failed, 3 up-to-date, 0 skipped
> ==========
> >
> > Makes sense to me. But why doesn't it continue on and relink
> llvm-tblgen.exe? I spent about half an hour searching the interwebs, but
> all I could find was complaints about building too much, not too little.
> >
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