[SAoC] MLIR Support for LDC

Johan Engelen j at j.nl
Thu Oct 3 06:22:35 UTC 2019

On Wednesday, 2 October 2019 at 23:45:03 UTC, Roberto Rosmaninho 
> On Wednesday, 2 October 2019 at 20:31:02 UTC, Johan Engelen 
> wrote:
>> As far as I can tell, if you checkout MLIR into your local 
>> LLVM checkout [1], then it is automatically built with LLVM 
>> and the header files will be part of the LLVM install.
> Yes! I found a solution: create a cmake find for mlir, ldc have 
> to mlir and it fixes the problem: http://bit.ly/2n7xEJS

This doesn't look quite right.
You should `ninja install` LLVM (set an install path using 
-DCMAKE_INSTALL_PREFIX="..." when running cmake to generate the 
ninja build file), such that you get a local LLVM installation 
that contains also the MLIR stuff. Are you sure that MLIR is 
built when building LLVM? Perhaps cmake argument 
-DLLVM_ENABLE_PROJECTS="mlir;compiler-rt;lld" is needed.


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