[VENTUS][fix] Add files to install package && add VENTUS_INSTALL_PREFIX enviroments variable

Add VENTUS_INSTALL_PREFIX for runtime use(pocl)

README.md

@@ -49,9 +49,11 @@ You can dive into `build-ventus.sh` file to see the detailed information about b
 
 ### 3: Bridge icd loader
 
-Run `export LD_LIBRARY_PATH=<path_to>/ventus-llvm/install/lib` to tell OpenCL application to use your own built `libOpenCL.so`, also to correctly locate LLVM shared libraries
+Run `export VENTUS_INSTALL_PREFIX=<path_to_install>` to set `VENTUS_INSTALL_PREFIX` environment variable(system environment variable recommended)
 
-Run `export OCL_ICD_VENDORS=<path_to>/libpocl.so` to tell ocl icd loader where the icd driver is.
+Run `export LD_LIBRARY_PATH=${VENTUS_INSTALL_PREFIX}/lib` to tell OpenCL application to use your own built `libOpenCL.so`, also to correctly locate LLVM shared libraries
+
+Run `export OCL_ICD_VENDORS=${VENTUS_INSTALL_PREFIX}/lib/libpocl.so` to tell ocl icd loader where the icd driver is.
 
 Finally, run `export POCL_DEVICES="ventus"` to tell pocl driver which device is available(should we set ventus as default device?).
 

assemble.sh

@@ -2,10 +2,7 @@
 
 # This script will be used by pocl
 
-# echo "converting object file:"
-# echo $1
-script_dir=$(cd "$(dirname "$0")" && pwd)
-export PATH=$script_dir/install/bin:$PATH
+export PATH=${VENTUS_INSTALL_PREFIX}/bin:$PATH
 if [[ -f $1.vmem ]];then
   rm $1.vmem
 fi

llvm/CMakeLists.txt

@@ -1370,3 +1370,11 @@ endif()
 if (LLVM_INCLUDE_UTILS AND LLVM_INCLUDE_TOOLS)
   add_subdirectory(utils/llvm-locstats)
 endif()
+
+install(DIRECTORY ../utils/ldscripts
+  DESTINATION "${CMAKE_INSTALL_PREFIX}/lib"
+)
+
+install(FILES ../assemble.sh
+  DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/scripts"
+)