From 4b5205d2a3e0df909f29de0bff8ea775ad21fe0f Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Mon, 30 Sep 2013 16:32:51 +0000
Subject: [PATCH] Revert "Enable building LTO on WIN32."

This reverts commit r191670.

It was causing build failures on the msvc bots:

http://bb.pgr.jp/builders/ninja-clang-i686-msc17-R/builds/5166/steps/compile/logs/stdio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191679 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/LTO/cfi_endproc.ll  |  1 +
 test/LTO/lit.local.cfg   |  2 +-
 tools/CMakeLists.txt     |  2 +-
 tools/lto/CMakeLists.txt | 16 ++--------------
 4 files changed, 5 insertions(+), 16 deletions(-)

diff --git a/test/LTO/cfi_endproc.ll b/test/LTO/cfi_endproc.ll
index ecb0ed506e6..0a47b0225ee 100644
--- a/test/LTO/cfi_endproc.ll
+++ b/test/LTO/cfi_endproc.ll
@@ -17,3 +17,4 @@ define i32 @main(i32 %argc, i8** %argv) {
   call void @PR14512()
   ret i32 0
 }
+; XFAIL: win32
diff --git a/test/LTO/lit.local.cfg b/test/LTO/lit.local.cfg
index 7a70736aeac..f61943a77af 100644
--- a/test/LTO/lit.local.cfg
+++ b/test/LTO/lit.local.cfg
@@ -2,5 +2,5 @@ targets = set(config.root.targets_to_build.split())
 if not 'X86' in targets:
   config.unsupported = True
 
-if config.root.host_os in ['Cygwin']:
+if config.root.host_os in ['Cygwin', 'MingW', 'Windows']:
   config.unsupported = True
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index d8001e75a70..468d396b59a 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -43,7 +43,7 @@ add_llvm_tool_subdirectory(llvm-symbolizer)
 add_llvm_tool_subdirectory(obj2yaml)
 add_llvm_tool_subdirectory(yaml2obj)
 
-if( NOT CYGWIN )
+if( NOT WIN32 )
   add_llvm_tool_subdirectory(lto)
   add_llvm_tool_subdirectory(llvm-lto)
 else()
diff --git a/tools/lto/CMakeLists.txt b/tools/lto/CMakeLists.txt
index 5e5d8adecf7..8b26ddd57e8 100644
--- a/tools/lto/CMakeLists.txt
+++ b/tools/lto/CMakeLists.txt
@@ -9,19 +9,7 @@ set(SOURCES
   lto.cpp
   )
 
-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()
-
+if( NOT WIN32 AND LLVM_ENABLE_PIC )
   set(bsl ${BUILD_SHARED_LIBS})
   set(BUILD_SHARED_LIBS ON)
   add_llvm_library(LTO ${SOURCES})
@@ -37,7 +25,7 @@ if( NOT BUILD_SHARED_LIBS )
   set_property(TARGET ${LTO_STATIC_TARGET_NAME} PROPERTY OUTPUT_NAME "LTO")
 endif()
 
-if( NOT CYGWIN )
+if( NOT WIN32 )
   install(FILES ${LLVM_MAIN_INCLUDE_DIR}/llvm-c/lto.h
           DESTINATION include/llvm-c)
 endif()