set up buildbot

.circleci/config.yml

@@ -8,8 +8,14 @@ jobs:
       - checkout
 
       - run:
-          name: Greeting
-          command: echo Hello, world.
+          name: Set up MLIR.
+          command: |
+            git clone https://github.com/llvm/llvm-project.git  
+            git clone https://github.com/tensorflow/mlir llvm-project/llvm/projects/mlir 
+            mkdir llvm-project/build 
+            cd llvm-project/build 
+            cmake -G Ninja ../llvm -DLLVM_ENABLE_RTTI=ON  -DLLVM_BUILD_EXAMPLES=OFF -DLLVM_TARGETS_TO_BUILD="host" 
+            cmake --build . --target check-mlir
 
       - run:
           name: Print the Current Time