From dc209b8a83677910445f36b870dfc26e16404bc9 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4civic@gmail.com>
Date: Sun, 26 Jan 2014 12:41:38 +0000
Subject: [PATCH] [CMake] tablegen(): Use -I <dir> according to the list by
 include_directories().

For now, local_tds and global_tds are integrated to dependent_tds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200150 91177308-0d34-0410-b5e6-96231b3b80d8
---
 cmake/modules/TableGen.cmake | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index b1e15492471..7b69882dee5 100644
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -3,8 +3,16 @@
 # Adds the name of the generated file to TABLEGEN_OUTPUT.
 
 function(tablegen project ofn)
-  file(GLOB local_tds "*.td")
-  file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td")
+  # Use the list by include_directories().
+  get_property(include_dirs DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
+
+  # Collect possible dependent *.td(s).
+  # FIXME: It is far from optimal.
+  file(GLOB dependent_tds "*.td")
+  foreach(inc ${include_dirs})
+    file(GLOB tds "${inc}/*.td")
+    list(APPEND dependent_tds ${tds})
+  endforeach()
 
   if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
     set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
@@ -12,16 +20,20 @@ function(tablegen project ofn)
     set(LLVM_TARGET_DEFINITIONS_ABSOLUTE 
       ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
   endif()
+  foreach(inc ${include_dirs})
+    list(APPEND TABLEGEN_INCLUDE_DIRECTORIES -I ${inc})
+  endforeach()
   add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
     # Generate tablegen output in a temporary file.
-    COMMAND ${${project}_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
-    -I ${LLVM_MAIN_SRC_DIR}/lib/Target -I ${LLVM_MAIN_INCLUDE_DIR}
+    COMMAND ${${project}_TABLEGEN_EXE} ${ARGN}
+    -I ${CMAKE_CURRENT_SOURCE_DIR}
+    ${TABLEGEN_INCLUDE_DIRECTORIES}
     ${LLVM_TARGET_DEFINITIONS_ABSOLUTE} 
     -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
     # The file in LLVM_TARGET_DEFINITIONS may be not in the current
     # directory and local_tds may not contain it, so we must
     # explicitly list it here:
-    DEPENDS ${${project}_TABLEGEN_EXE} ${local_tds} ${global_tds}
+    DEPENDS ${${project}_TABLEGEN_EXE} ${dependent_tds}
     ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
     COMMENT "Building ${ofn}..."
     )
-- 
2.34.1