[llvm] r191670 - Enable building LTO on WIN32.

[Rafael Espindola]

Author: rafael
Date: Mon Sep 30 10:28:14 2013
New Revision: 191670

URL: http://llvm.org/viewvc/llvm-project?rev=191670&view=rev
Log:
Enable building LTO on WIN32.

Enable building the LTO library (.lib and.dll) and llvm-lto.exe on Windows with
MSVC and Mingw as well as re-enabling the associated test.

Patch by Greg Bedwell!

Modified:
    llvm/trunk/test/LTO/cfi_endproc.ll
    llvm/trunk/test/LTO/lit.local.cfg
    llvm/trunk/tools/CMakeLists.txt
    llvm/trunk/tools/lto/CMakeLists.txt

Modified: llvm/trunk/test/LTO/cfi_endproc.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/LTO/cfi_endproc.ll?rev=191670&r1=191669&r2=191670&view=diff
==============================================================================
--- llvm/trunk/test/LTO/cfi_endproc.ll (original)
+++ llvm/trunk/test/LTO/cfi_endproc.ll Mon Sep 30 10:28:14 2013
@@ -17,4 +17,3 @@ define i32 @main(i32 %argc, i8** %argv)
   call void @PR14512()
   ret i32 0
 }
-; XFAIL: win32

Modified: llvm/trunk/test/LTO/lit.local.cfg
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/LTO/lit.local.cfg?rev=191670&r1=191669&r2=191670&view=diff
==============================================================================
--- llvm/trunk/test/LTO/lit.local.cfg (original)
+++ llvm/trunk/test/LTO/lit.local.cfg Mon Sep 30 10:28:14 2013
@@ -2,5 +2,5 @@ targets = set(config.root.targets_to_bui
 if not 'X86' in targets:
   config.unsupported = True
 
-if config.root.host_os in ['Cygwin', 'MingW', 'Windows']:
+if config.root.host_os in ['Cygwin']:
   config.unsupported = True

Modified: llvm/trunk/tools/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/CMakeLists.txt?rev=191670&r1=191669&r2=191670&view=diff
==============================================================================
--- llvm/trunk/tools/CMakeLists.txt (original)
+++ llvm/trunk/tools/CMakeLists.txt Mon Sep 30 10:28:14 2013
@@ -43,7 +43,7 @@ add_llvm_tool_subdirectory(llvm-symboliz
 add_llvm_tool_subdirectory(obj2yaml)
 add_llvm_tool_subdirectory(yaml2obj)
 
-if( NOT WIN32 )
+if( NOT CYGWIN )
   add_llvm_tool_subdirectory(lto)
   add_llvm_tool_subdirectory(llvm-lto)
 else()

Modified: llvm/trunk/tools/lto/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/lto/CMakeLists.txt?rev=191670&r1=191669&r2=191670&view=diff
==============================================================================
--- llvm/trunk/tools/lto/CMakeLists.txt (original)
+++ llvm/trunk/tools/lto/CMakeLists.txt Mon Sep 30 10:28:14 2013
@@ -9,7 +9,19 @@ set(SOURCES
   lto.cpp
   )
 
-if( NOT WIN32 AND LLVM_ENABLE_PIC )
+if( NOT CYGWIN AND LLVM_ENABLE_PIC )
+  if ( WIN32 )
+    # Create .def file containing a list of exports preceeded by
+    # 'EXPORTS'.  The file "lto.exports" already contains the list, so we
+    # massage it into the correct format here to create "lto.exports.def".
+    set(LTO_EXPORTS_DEF ${CMAKE_CURRENT_BINARY_DIR}/lto.exports.def)
+    file(READ "lto.exports" exports_list)
+    file(WRITE ${LTO_EXPORTS_DEF} "LIBRARY LTO\n")
+    file(APPEND ${LTO_EXPORTS_DEF} "EXPORTS\n")
+    file(APPEND ${LTO_EXPORTS_DEF} ${exports_list})
+    set(SOURCES ${SOURCES} ${LTO_EXPORTS_DEF})
+  endif()
+
   set(bsl ${BUILD_SHARED_LIBS})
   set(BUILD_SHARED_LIBS ON)
   add_llvm_library(LTO ${SOURCES})
@@ -25,7 +37,7 @@ if( NOT BUILD_SHARED_LIBS )
   set_property(TARGET ${LTO_STATIC_TARGET_NAME} PROPERTY OUTPUT_NAME "LTO")
 endif()
 
-if( NOT WIN32 )
+if( NOT CYGWIN )
   install(FILES ${LLVM_MAIN_INCLUDE_DIR}/llvm-c/lto.h
           DESTINATION include/llvm-c)
 endif()