CMake: Builds all targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56641 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
new file mode 100644
index 0000000..f7b081c
--- /dev/null
+++ b/cmake/modules/TableGen.cmake
@@ -0,0 +1,12 @@
+# LLVM_TARGET_DEFINITIONS must contain the name of the .td file to process.
+# Extra parameters for `tblgen' may come after `ofn' parameter.
+# Adds the name of the generated file to TABLEGEN_OUTPUT.
+
+macro(tablegen ofn)
+  add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
+    COMMAND tblgen ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR} -I ${CMAKE_SOURCE_DIR}/lib/Target -I ${llvm_include_path} ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS} -o ${ofn}
+    DEPENDS tblgen ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS}
+    COMMENT "Building ${ofn}..."
+    )
+  set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn})
+endmacro(tablegen)