Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."

This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113819 91177308-0d34-0410-b5e6-96231b3b80d8

tools/CMakeLists.txt

@@ -2,6 +2,15 @@
 # large and three small executables. This is done to minimize memory load
 # in parallel builds.  Please retain this ordering.
 
+if( NOT WIN32 OR MSYS OR CYGWIN )
+  # It is useful to build llvm-config before the other tools, so we
+  # have a fresh LibDeps.txt for regenerating the hard-coded library
+  # dependencies. llvm-config/CMakeLists.txt takes care of this but we
+  # must keep llvm-config as the first entry on the list of tools to
+  # be built.
+  add_subdirectory(llvm-config)
+endif()
+
 add_subdirectory(opt)
 add_subdirectory(llvm-as)
 add_subdirectory(llvm-dis)
@@ -29,4 +38,6 @@ add_subdirectory(llvmc)
 
 if( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/clang/CMakeLists.txt )
   add_subdirectory( ${CMAKE_CURRENT_SOURCE_DIR}/clang )
-endif()
+endif( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/clang/CMakeLists.txt )
+
+set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)

tools/bugpoint/CMakeLists.txt

@@ -1,3 +1,6 @@
+set(LLVM_LINK_COMPONENTS asmparser instrumentation scalaropts ipo
+  linker bitreader bitwriter)
+
 add_llvm_tool(bugpoint
   BugDriver.cpp
   CrashDebugger.cpp
@@ -9,13 +12,3 @@ add_llvm_tool(bugpoint
   ToolRunner.cpp
   bugpoint.cpp
   )
-
-target_link_libraries(bugpoint
-  LLVMAsmParser
-  LLVMInstrumentation
-  LLVMScalarOpts
-  LLVMipo
-  LLVMLinker
-  LLVMBitReader
-  LLVMBitWriter
-  )

tools/llc/CMakeLists.txt

@@ -1,6 +1,5 @@
+set(LLVM_LINK_COMPONENTS ${LLVM_TARGETS_TO_BUILD} bitreader asmparser)
+
 add_llvm_tool(llc
   llc.cpp
   )
-
-add_llvm_link_components(llc all)
-target_link_libraries(llc LLVMBitReader LLVMAsmParser)

tools/lli/CMakeLists.txt

@@ -1,6 +1,5 @@
+set(LLVM_LINK_COMPONENTS jit interpreter nativecodegen bitreader selectiondag)
+
 add_llvm_tool(lli
   lli.cpp
   )
-
-add_llvm_link_components(lli jit interpreter nativecodegen)
-target_link_libraries(lli LLVMBitReader LLVMSelectionDAG)

tools/llvm-ar/CMakeLists.txt

@@ -1,9 +1,8 @@
+set(LLVM_LINK_COMPONENTS archive)
 set(LLVM_REQUIRES_EH 1)
 
 add_llvm_tool(llvm-ar
   llvm-ar.cpp
   )
 
-target_link_libraries(llvm-ar LLVMArchive)
-
 # TODO: Support check-local.

tools/llvm-as/CMakeLists.txt

@@ -1,7 +1,6 @@
+set(LLVM_LINK_COMPONENTS asmparser bitwriter)
 set(LLVM_REQUIRES_EH 1)
 
 add_llvm_tool(llvm-as
   llvm-as.cpp
   )
-
-target_link_libraries(llvm-as LLVMAsmParser LLVMBitWriter)

tools/llvm-bcanalyzer/CMakeLists.txt

@@ -1,7 +1,6 @@
+set(LLVM_LINK_COMPONENTS bitreader)
 set(LLVM_REQUIRES_EH 1)
 
 add_llvm_tool(llvm-bcanalyzer
   llvm-bcanalyzer.cpp
   )
-
-target_link_libraries(llvm-bcanalyzer LLVMBitReader)

tools/llvm-config/CMakeLists.txt

@@ -110,6 +110,10 @@ add_custom_target(llvm-config.target ALL
 
 add_dependencies(llvm-config.target ${llvm_lib_targets})
 
+# Make sure that llvm-config builds before the llvm tools, so we have
+# LibDeps.txt and can use it for updating the hard-coded library
+# dependencies on cmake/modules/LLVMLibDeps.cmake when the tools'
+# build fail due to outdated dependencies:
 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} llvm-config.target)
 
 install(FILES ${LLVM_CONFIG}
@@ -118,4 +122,25 @@ install(FILES ${LLVM_CONFIG}
   DESTINATION bin)
 
 
+# Regeneration of library dependencies.
+
+# See the comments at the end of cmake/modules/LLVMConfig.cmake for
+# notes and guidelines.
+
+set(LLVMLibDeps ${LLVM_MAIN_SRC_DIR}/cmake/modules/LLVMLibDeps.cmake)
+set(LLVMLibDeps_TMP ${CMAKE_CURRENT_BINARY_DIR}/LLVMLibDeps.cmake.tmp)
+
+add_custom_command(OUTPUT ${LLVMLibDeps_TMP}
+  COMMAND sed -e s'@\\.a@@g' -e s'@\\.so@@g' -e 's@libLLVM@LLVM@g' -e 's@: @ @' -e 's@\\\(.*\\\)@set\(MSVC_LIB_DEPS_\\1\)@' ${FINAL_LIBDEPS} > ${LLVMLibDeps_TMP}
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different ${LLVMLibDeps_TMP} ${LLVMLibDeps}
+  DEPENDS ${FINAL_LIBDEPS}
+  COMMENT "Updating cmake library dependencies file ${LLVMLibDeps}"
+  )
+
+if( LLVM_TARGETS_TO_BUILD STREQUAL LLVM_ALL_TARGETS )
+  add_custom_target(llvmlibdeps.target ALL DEPENDS ${LLVMLibDeps_TMP})
+  add_dependencies(llvmlibdeps.target llvm-config.target)
+  set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} llvmlibdeps.target)
+endif()
+
 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)

tools/llvm-diff/CMakeLists.txt

@@ -1,6 +1,6 @@
+set(LLVM_LINK_COMPONENTS support asmparser bitreader)
+
 add_llvm_tool(llvm-diff
   llvm-diff.cpp
   DifferenceEngine.cpp
   )
-
-target_link_libraries(llvm-diff LLVMAsmParser LLVMBitReader)

tools/llvm-dis/CMakeLists.txt

@@ -1,7 +1,6 @@
+set(LLVM_LINK_COMPONENTS bitreader)
 set(LLVM_REQUIRES_EH 1)
 
 add_llvm_tool(llvm-dis
   llvm-dis.cpp
   )
-
-target_link_libraries(llvm-dis LLVMCore LLVMBitReader)

tools/llvm-extract/CMakeLists.txt

@@ -1,10 +1,5 @@
+set(LLVM_LINK_COMPONENTS asmparser ipo bitreader bitwriter)
+
 add_llvm_tool(llvm-extract
   llvm-extract.cpp
   )
-
-target_link_libraries(llvm-extract
-  LLVMAsmParser
-  LLVMipo
-  LLVMBitReader
-  LLVMBitWriter
-  )

tools/llvm-ld/CMakeLists.txt

@@ -1,12 +1,6 @@
+set(LLVM_LINK_COMPONENTS ipo scalaropts linker archive bitwriter)
+
 add_llvm_tool(llvm-ld
   Optimize.cpp
   llvm-ld.cpp
   )
-
-target_link_libraries(llvm-ld
-  LLVMipo
-  LLVMScalarOpts
-  LLVMLinker
-  LLVMArchive
-  LLVMBitWriter
-  )

tools/llvm-link/CMakeLists.txt

@@ -1,10 +1,5 @@
+set(LLVM_LINK_COMPONENTS linker bitreader bitwriter asmparser)
+
 add_llvm_tool(llvm-link
   llvm-link.cpp
   )
-
-target_link_libraries(llvm-link
-  LLVMLinker
-  LLVMBitReader
-  LLVMBitWriter
-  LLVMAsmParser
-  )

tools/llvm-mc/CMakeLists.txt

@@ -1,7 +1,6 @@
+set(LLVM_LINK_COMPONENTS ${LLVM_TARGETS_TO_BUILD} support MC MCParser MCDisassembler)
+
 add_llvm_tool(llvm-mc
   llvm-mc.cpp
   Disassembler.cpp
   )
-
-add_llvm_link_components(llvm-mc all)
-target_link_libraries(llvm-mc LLVMMC LLVMMCParser LLVMMCDisassembler)

tools/llvm-nm/CMakeLists.txt

@@ -1,5 +1,5 @@
+set(LLVM_LINK_COMPONENTS archive bitreader)
+
 add_llvm_tool(llvm-nm
   llvm-nm.cpp
   )
-
-target_link_libraries(llvm-nm LLVMArchive LLVMBitReader)

tools/llvm-prof/CMakeLists.txt

@@ -1,5 +1,5 @@
+set(LLVM_LINK_COMPONENTS bitreader analysis)
+
 add_llvm_tool(llvm-prof
   llvm-prof.cpp
   )
-
-target_link_libraries(llvm-prof LLVMBitReader LLVMAnalysis)

tools/llvm-ranlib/CMakeLists.txt

@@ -1,7 +1,6 @@
+set(LLVM_LINK_COMPONENTS archive)
 set(LLVM_REQUIRES_EH 1)
 
 add_llvm_tool(llvm-ranlib
   llvm-ranlib.cpp
   )
-
-target_link_libraries(llvm-ranlib LLVMArchive)

tools/opt/CMakeLists.txt

@@ -1,15 +1,8 @@
+set(LLVM_LINK_COMPONENTS bitreader asmparser bitwriter instrumentation scalaropts ipo)
+
 add_llvm_tool(opt
   AnalysisWrappers.cpp
   GraphPrinters.cpp
   PrintSCC.cpp
   opt.cpp
   )
-
-target_link_libraries(opt
-  LLVMBitReader
-  LLVMAsmParser
-  LLVMBitWriter
-  LLVMInstrumentation
-  LLVMScalarOpts
-  LLVMipo
-  )