[openmp] post-merge: Fix openmp build (llvm#3963)

Author: ronlieb

openmp/device/CMakeLists.txt

@@ -96,7 +96,7 @@ endif()
 # Trick to combine these into a bitcode file via the linker's LTO pass.
 add_executable(libompdevice ${src_files})
 set_target_properties(libompdevice PROPERTIES
-  RUNTIME_OUTPUT_DIRECTORY "${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE}"
+  RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
   LINKER_LANGUAGE CXX
   BUILD_RPATH ""
   INSTALL_RPATH ""
@@ -124,7 +124,7 @@ install(TARGETS libompdevice
 
 add_library(ompdevice.all_objs OBJECT IMPORTED)
 set_property(TARGET ompdevice.all_objs APPEND PROPERTY IMPORTED_OBJECTS
-             ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE}/libomptarget-${target_name}.bc)
+             ${CMAKE_CURRENT_BINARY_DIR}/libomptarget-${target_name}.bc)
 
 # Archive all the object files generated above into a static library
 add_library(ompdevice STATIC)