SWDEV-269027 - Add HIP Clang repo, branch, and patch level to HIP cmake config

Adding hip-config.cmake variables HIP_CLANG_REPO,
HIP_CLANG_BRANCH, and HIP_CLANG_PATCH_LEVEL. These
are extracted from either hipcc or clang++ --version
output.

Change-Id: I5386b71160d592d95d1867e0b563e91514b1b84b

hip-config.cmake.in

@@ -104,11 +104,11 @@ if(HIP_COMPILER STREQUAL "clang")
   if(NOT HIP_CXX_COMPILER)
     set(HIP_CXX_COMPILER ${CMAKE_CXX_COMPILER})
   endif()
+  execute_process(COMMAND ${HIP_CXX_COMPILER} --version
+                  OUTPUT_STRIP_TRAILING_WHITESPACE
+                  OUTPUT_VARIABLE HIP_CXX_COMPILER_VERSION_OUTPUT)
   if(HIP_CXX_COMPILER MATCHES ".*hipcc")
-    execute_process(COMMAND ${HIP_CXX_COMPILER} --version
-                    OUTPUT_STRIP_TRAILING_WHITESPACE
-                    OUTPUT_VARIABLE HIP_CLANG_CXX_COMPILER_VERSION_OUTPUT)
-    if(HIP_CLANG_CXX_COMPILER_VERSION_OUTPUT MATCHES "InstalledDir:[ \t]*([^\n]*)")
+    if(HIP_CXX_COMPILER_VERSION_OUTPUT MATCHES "InstalledDir:[ \t]*([^\n]*)")
       get_filename_component(HIP_CLANG_ROOT "${CMAKE_MATCH_1}" DIRECTORY)
     endif()
   elseif (HIP_CXX_COMPILER MATCHES ".*clang\\+\\+")
@@ -127,6 +127,17 @@ if(HIP_COMPILER STREQUAL "clang")
   set(GPU_SUPPORTED_TARGETS "gfx701;gfx801;gfx802;gfx803;gfx900;gfx906;gfx908;gfx90a;gfx1010;gfx1011;gfx1012;gfx1030;gfx1031")
   set(GPU_TARGETS "${GPU_DEFAULT_TARGETS}" CACHE STRING "GPU targets to compile for")
   set_property(CACHE GPU_TARGETS PROPERTY STRINGS ${GPU_SUPPORTED_TARGETS})
+
+  # Capture the repo, branch and patch level details of the HIP CXX Compiler.
+  # Ex. clang version 13.0.0 (https://github.com/ROCm-Developer-Tools/HIP main 12345 COMMIT_HASH)
+  # HIP_CLANG_REPO: https://github.com/ROCm-Developer-Tools/HIP
+  # HIP_CLANG_BRANCH: main
+  # HIP_CLANG_PATCH_LEVEL: 12345
+  if(${HIP_CXX_COMPILER_VERSION_OUTPUT} MATCHES "clang version [0-9]+\\.[0-9]+\\.[0-9]+ \\(([^ \n]*) ([^ \n]*) ([^ \n]*)")
+    set(HIP_CLANG_REPO ${CMAKE_MATCH_1})
+    set(HIP_CLANG_BRANCH ${CMAKE_MATCH_2})
+    set(HIP_CLANG_PATCH_LEVEL ${CMAKE_MATCH_3})
+  endif()
 endif()
 
 if(NOT WIN32)