Revert "No additional object library necessary"

This reverts commit a35bd89.

Author: Meinersbur

llvm/utils/TableGen/CMakeLists.txt

@@ -7,18 +7,25 @@ add_subdirectory(Common)
 
 set(LLVM_LINK_COMPONENTS Support)
 
-# llvm-min-tablegen only contains a subset of backends necessary to
-# build llvm/include. It must not depend on TableGenCommon, as
-# TableGenCommon depends on this already to generate things such as
-# ValueType definitions.
-add_tablegen(llvm-min-tblgen LLVM_HEADERS
+# Sources included in llvm-min-tblgen and llvm-tblgen.
+add_llvm_library(LLVMTableGenBoth OBJECT EXCLUDE_FROM_ALL DISABLE_LLVM_LINK_LLVM_DYLIB
   TableGen.cpp
   ARMTargetDefEmitter.cpp
   Attributes.cpp
   DirectiveEmitter.cpp
   IntrinsicEmitter.cpp
   RISCVTargetDefEmitter.cpp
   VTEmitter.cpp
+
+  PARTIAL_SOURCES_INTENDED
+  )
+
+# llvm-min-tablegen only contains a subset of backends necessary to
+# build llvm/include. It must not depend on TableGenCommon, as
+# TableGenCommon depends on this already to generate things such as
+# ValueType definitions.
+add_tablegen(llvm-min-tblgen LLVM_HEADERS
+  $<TARGET_OBJECTS:obj.LLVMTableGenBoth>
   $<TARGET_OBJECTS:obj.LLVMTableGenBasic>
 
   PARTIAL_SOURCES_INTENDED
@@ -70,7 +77,7 @@ add_tablegen(llvm-tblgen LLVM
   X86ModRMFilters.cpp
   X86RecognizableInstr.cpp
 
-  $<TARGET_OBJECTS:llvm-min-tblgen>
+  $<TARGET_OBJECTS:obj.LLVMTableGenBoth>
   $<TARGET_OBJECTS:obj.LLVMTableGenBasic>
   $<TARGET_OBJECTS:obj.LLVMTableGenCommon>