Help with building MLIR

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1

I am building MLIR with LLVM, using the

LLVM_TOOL_MLIR_BUILD:BOOL=ON

option in CMakeCache. Indeed, the MLIR files are in my build tree.

Can someone tell me how to build just MLIR, or, better yet, just mlir-tblgen? I'm building llvm-tblgen with

ninja -j 6 bin/llvm-tblgen.exe

And so, silly me, I assumed I could just add

ninja -j 6 bin/mlir-tblgen.exe

But no joy. I haven't yet gotten the hang of specifying what to build.

2

Re-replying to llvm-dev...

3

Hi Paul,

I’m not on windows, but I usually build it with just ninja mlir-tblgen.

I also use -DLLVM_ENABLE_PROJECTS=MLIR to enable it, I have never tried LLVM_TOOL_MLIR_BUILD, I don’t know if it is equivalent.
See the “Getting Started” doc here: https://mlir.llvm.org/getting_started/

(Feel free to join us on Discord if you’d like to get more “live” help: https://discord.gg/xS7Z362 )

4

Thanks! It has to be in this list, as you suggested:

LLVM_ENABLE_PROJECTS:STRING=mlir

Let me check out Discord.