[LIT] Fix lit copying path.

This commit changes directory which used to copy llvm-lit binary.

Author: Devjiu

.github/workflows/build-llvm.yml

@@ -28,7 +28,6 @@ jobs:
           cmake -G Ninja llvm -B build -DCMAKE_INSTALL_PREFIX=llvm-install \
             -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=true -DLLVM_ENABLE_PROJECTS="mlir" -DLLVM_TARGETS_TO_BUILD="X86" -DLLVM_INSTALL_UTILS=true -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
           cmake --build build --target install
-          cp llvm/bin/llvm-lit llvm-install/bin
           cd llvm-install
           tar -zcf ../llvm.tgz .
 

scripts/compile.sh

@@ -21,8 +21,12 @@ get_llvm() (
 
 test -f "$llvm_dir/llvm-$llvm_hash"/llvm.tgz || get_llvm
 
+# Currently to use llvm-lit we should pack 
+# whole llvm-build directory. To avoid this we will 
+# use pip version. 
+pip install lit
 cmake -S . -G Ninja -B build \
     -DCMAKE_BUILD_TYPE=RelWithDebInfo \
     -DMLIR_DIR=$llvm_dir/lib/cmake/mlir \
-    -DLLVM_EXTERNAL_LIT=$llvm_dir/bin/llvm-lit
+    -DLLVM_EXTERNAL_LIT=$(which lit)
 cmake --build build --parallel $(nproc)