[llvm] [mlir] [llvm][CMake][TableGen] Add all TableGen files to tablegen_compile_commands.yml (PR #71686)

[David Spickett via llvm-commits]

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@@ -91,6 +95,29 @@ function(tablegen project ofn)
   # but lets us having smaller and cleaner code here.
   get_directory_property(tblgen_includes INCLUDE_DIRECTORIES)
   list(APPEND tblgen_includes ${ARG_EXTRA_INCLUDES})
+
+  # Get the current set of include paths for this td file.
+  cmake_parse_arguments(ARG "" "" "DEPENDS;EXTRA_INCLUDES" ${ARGN})
+  get_directory_property(tblgen_includes INCLUDE_DIRECTORIES)
+  list(APPEND tblgen_includes ${ARG_EXTRA_INCLUDES})
+  # Filter out any empty include items.
+  list(REMOVE_ITEM tblgen_includes "")
+
+  # Build the absolute path for the current input file.
+  if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
+    set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
+  else()
+    set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
+  endif()
+
+  # Append the includes used for this file to the tablegen_compile_commands
+  # file.
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DavidSpickett wrote:

I've noted what uses this file.

https://github.com/llvm/llvm-project/pull/71686