SWDEV-330775 - SWDEV-334083 - Compiler file re-org

  - device-libs
    - Move amdgcn to lib/llvm/lib/clang/<ver>/lib/amdgcn
    - Create symlink amdgcn -> lib/llvm/lib/clang/<ver>/lib/amdgcn

Change-Id: I6cd7116b556920d2500edfa65e0e147a27dbda57

CMakeLists.txt

@@ -57,8 +57,28 @@ if (NOT PREPARE_BUILTINS)
   set (PREPARE_BUILTINS $<TARGET_FILE:prepare-builtins>)
 endif()
 
+# Following variables are required for ROCM backwards compatibility,
+# and should be removed in ROCM 7.0 release.
+set(ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_NEW "" CACHE STRING "New bitcode install location relative to CMAKE_INSTALL_PREFIX")
+set(ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_OLD "" CACHE STRING "Old bitcode install location relative to CMAKE_INSTALL_PREFIX")
+
 include(OCL)
 
+if (NOT ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_NEW STREQUAL "" AND
+    NOT ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_OLD STREQUAL "")
+  set(ROCM_DEVICE_LIBS_WRAPPER_DIR ${CMAKE_CURRENT_BINARY_DIR}/wrapper_dir)
+  file(MAKE_DIRECTORY ${ROCM_DEVICE_LIBS_WRAPPER_DIR})
+  add_custom_target(
+      FILE_REORG_ROCM_6_0 ALL
+      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+      COMMAND ${CMAKE_COMMAND} -E create_symlink
+          ${ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_NEW}
+          ${ROCM_DEVICE_LIBS_WRAPPER_DIR}/${ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_OLD})
+  install(
+      FILES ${ROCM_DEVICE_LIBS_WRAPPER_DIR}/${ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_OLD}
+      DESTINATION .)
+endif()
+
 set(AMDGCN_LIB_LIST)
 set(AMDGCN_DEP_LIST)
 add_subdirectory(irif)

cmake/OCL.cmake

@@ -39,6 +39,10 @@ set (STRIP_SUFFIX ".strip${BC_EXT}")
 set (FINAL_SUFFIX "${BC_EXT}")
 set (INSTALL_ROOT_SUFFIX "amdgcn/bitcode")
 
+if (NOT ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_NEW STREQUAL "")
+  set(INSTALL_ROOT_SUFFIX "${ROCM_DEVICE_LIBS_BITCODE_INSTALL_LOC_NEW}/bitcode")
+endif()
+
 # Set `inc_options` to contain Clang command-line for include directories for
 # current source directory.
 macro(set_inc_options)