Merge System into Support.

llvm-svn: 120297

49 files changed, 67 insertions, 67 deletions

diff --git a/clang/examples/clang-interpreter/main.cpp b/clang/examples/clang-interpreter/main.cpp
index 1b0f042f67c..835a5a90ad1 100644
--- a/clang/examples/clang-interpreter/main.cpp
+++ b/clang/examples/clang-interpreter/main.cpp
@@ -26,8 +26,8 @@
 #include "llvm/ExecutionEngine/ExecutionEngine.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Target/TargetSelect.h"
 using namespace clang;
 using namespace clang::driver;
diff --git a/clang/include/clang/AST/CharUnits.h b/clang/include/clang/AST/CharUnits.h
index 78f796dc9fd..9a7b3720e81 100644
--- a/clang/include/clang/AST/CharUnits.h
+++ b/clang/include/clang/AST/CharUnits.h
@@ -15,7 +15,7 @@
 #define LLVM_CLANG_AST_CHARUNITS_H
 
 #include "llvm/ADT/DenseMapInfo.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 
 namespace clang {
   
diff --git a/clang/include/clang/AST/DeclGroup.h b/clang/include/clang/AST/DeclGroup.h
index 030291ea734..cb9e1681cc0 100644
--- a/clang/include/clang/AST/DeclGroup.h
+++ b/clang/include/clang/AST/DeclGroup.h
@@ -14,7 +14,7 @@
 #ifndef LLVM_CLANG_AST_DECLGROUP_H
 #define LLVM_CLANG_AST_DECLGROUP_H
 
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include <cassert>
 
 namespace clang {
diff --git a/clang/include/clang/AST/RecordLayout.h b/clang/include/clang/AST/RecordLayout.h
index ca29c9c404b..d2d4b152aed 100644
--- a/clang/include/clang/AST/RecordLayout.h
+++ b/clang/include/clang/AST/RecordLayout.h
@@ -14,7 +14,7 @@
 #ifndef LLVM_CLANG_AST_LAYOUTINFO_H
 #define LLVM_CLANG_AST_LAYOUTINFO_H
 
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include "llvm/ADT/DenseMap.h"
 #include "clang/AST/CharUnits.h"
 #include "clang/AST/DeclCXX.h"
diff --git a/clang/include/clang/AST/StmtIterator.h b/clang/include/clang/AST/StmtIterator.h
index 4da2e3474b1..ebf712a153e 100644
--- a/clang/include/clang/AST/StmtIterator.h
+++ b/clang/include/clang/AST/StmtIterator.h
@@ -14,7 +14,7 @@
 #ifndef LLVM_CLANG_AST_STMT_ITR_H
 #define LLVM_CLANG_AST_STMT_ITR_H
 
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include <cassert>
 #include <cstddef>
 #include <iterator>
diff --git a/clang/include/clang/Analysis/ProgramPoint.h b/clang/include/clang/Analysis/ProgramPoint.h
index 49cddee4b83..12597e91068 100644
--- a/clang/include/clang/Analysis/ProgramPoint.h
+++ b/clang/include/clang/Analysis/ProgramPoint.h
@@ -17,7 +17,7 @@
 
 #include "clang/Analysis/AnalysisContext.h"
 #include "clang/Analysis/CFG.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/Support/Casting.h"
diff --git a/clang/include/clang/Basic/OnDiskHashTable.h b/clang/include/clang/Basic/OnDiskHashTable.h
index 30bf39ef433..0df22f4112b 100644
--- a/clang/include/clang/Basic/OnDiskHashTable.h
+++ b/clang/include/clang/Basic/OnDiskHashTable.h
@@ -15,10 +15,10 @@
 #define LLVM_CLANG_BASIC_ON_DISK_HASH_TABLE_H
 
 #include "llvm/Support/Allocator.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Host.h"
+#include "llvm/Support/Host.h"
 #include <cassert>
 #include <cstdlib>
 
diff --git a/clang/include/clang/Basic/PartialDiagnostic.h b/clang/include/clang/Basic/PartialDiagnostic.h
index 1d96044a718..d00195b3267 100644
--- a/clang/include/clang/Basic/PartialDiagnostic.h
+++ b/clang/include/clang/Basic/PartialDiagnostic.h
@@ -18,7 +18,7 @@
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/SourceLocation.h"
 #include "llvm/ADT/STLExtras.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include <cassert>
 
 namespace clang {
diff --git a/clang/include/clang/Basic/SourceManager.h b/clang/include/clang/Basic/SourceManager.h
index e02242882c4..b8811b42c48 100644
--- a/clang/include/clang/Basic/SourceManager.h
+++ b/clang/include/clang/Basic/SourceManager.h
@@ -16,7 +16,7 @@
 
 #include "clang/Basic/SourceLocation.h"
 #include "llvm/Support/Allocator.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/PointerUnion.h"
 #include "llvm/ADT/DenseMap.h"
diff --git a/clang/include/clang/Basic/TargetInfo.h b/clang/include/clang/Basic/TargetInfo.h
index 789761aa097..3e81fdf0e94 100644
--- a/clang/include/clang/Basic/TargetInfo.h
+++ b/clang/include/clang/Basic/TargetInfo.h
@@ -18,7 +18,7 @@
 #include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/Triple.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include <cassert>
 #include <vector>
 #include <string>
diff --git a/clang/include/clang/Checker/PathSensitive/SymbolManager.h b/clang/include/clang/Checker/PathSensitive/SymbolManager.h
index 26ed0c1bc06..e6b1255a5b9 100644
--- a/clang/include/clang/Checker/PathSensitive/SymbolManager.h
+++ b/clang/include/clang/Checker/PathSensitive/SymbolManager.h
@@ -18,7 +18,7 @@
 #include "clang/AST/Decl.h"
 #include "clang/AST/Expr.h"
 #include "clang/Analysis/AnalysisContext.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/DenseSet.h"
 
diff --git a/clang/include/clang/Driver/Driver.h b/clang/include/clang/Driver/Driver.h
index 1622c4be51e..98c8c4623ad 100644
--- a/clang/include/clang/Driver/Driver.h
+++ b/clang/include/clang/Driver/Driver.h
@@ -17,7 +17,7 @@
 
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/Triple.h"
-#include "llvm/System/Path.h" // FIXME: Kill when CompilationInfo
+#include "llvm/Support/Path.h" // FIXME: Kill when CompilationInfo
                               // lands.
 #include <list>
 #include <set>
diff --git a/clang/include/clang/Driver/ToolChain.h b/clang/include/clang/Driver/ToolChain.h
index e96259257a9..47dabb03d33 100644
--- a/clang/include/clang/Driver/ToolChain.h
+++ b/clang/include/clang/Driver/ToolChain.h
@@ -14,7 +14,7 @@
 #include "clang/Driver/Types.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Triple.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <string>
 
 namespace clang {
diff --git a/clang/include/clang/Frontend/ASTUnit.h b/clang/include/clang/Frontend/ASTUnit.h
index 6d584d4b07b..c7db42d6900 100644
--- a/clang/include/clang/Frontend/ASTUnit.h
+++ b/clang/include/clang/Frontend/ASTUnit.h
@@ -27,7 +27,7 @@
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringMap.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <map>
 #include <string>
 #include <vector>
diff --git a/clang/include/clang/Lex/LiteralSupport.h b/clang/include/clang/Lex/LiteralSupport.h
index 52e027fffcb..9d387bacc22 100644
--- a/clang/include/clang/Lex/LiteralSupport.h
+++ b/clang/include/clang/Lex/LiteralSupport.h
@@ -18,7 +18,7 @@
 #include <string>
 #include "llvm/ADT/APFloat.h"
 #include "llvm/ADT/SmallString.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 
 namespace clang {
 
diff --git a/clang/include/clang/Serialization/ASTBitCodes.h b/clang/include/clang/Serialization/ASTBitCodes.h
index 5e0f7e249e0..9a0fec7b12d 100644
--- a/clang/include/clang/Serialization/ASTBitCodes.h
+++ b/clang/include/clang/Serialization/ASTBitCodes.h
@@ -19,7 +19,7 @@
 
 #include "clang/AST/Type.h"
 #include "llvm/Bitcode/BitCodes.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include "llvm/ADT/DenseMap.h"
 
 namespace clang {
diff --git a/clang/include/clang/Serialization/ASTReader.h b/clang/include/clang/Serialization/ASTReader.h
index 528ba15ecfe..c1470ea12d8 100644
--- a/clang/include/clang/Serialization/ASTReader.h
+++ b/clang/include/clang/Serialization/ASTReader.h
@@ -31,7 +31,7 @@
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Bitcode/BitstreamReader.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include <deque>
 #include <map>
 #include <string>
diff --git a/clang/lib/Basic/FileManager.cpp b/clang/lib/Basic/FileManager.cpp
index a80fae7bfae..f126760a147 100644
--- a/clang/lib/Basic/FileManager.cpp
+++ b/clang/lib/Basic/FileManager.cpp
@@ -23,7 +23,7 @@
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Config/config.h"
 #include <map>
 #include <set>
diff --git a/clang/lib/Basic/FileSystemStatCache.cpp b/clang/lib/Basic/FileSystemStatCache.cpp
index 359e1924d00..8a590507c78 100644
--- a/clang/lib/Basic/FileSystemStatCache.cpp
+++ b/clang/lib/Basic/FileSystemStatCache.cpp
@@ -12,7 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Basic/FileSystemStatCache.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <fcntl.h>
 
 // FIXME: This is terrible, we need this for ::close.
diff --git a/clang/lib/Basic/SourceManager.cpp b/clang/lib/Basic/SourceManager.cpp
index 2f974dc6423..54bdfd31660 100644
--- a/clang/lib/Basic/SourceManager.cpp
+++ b/clang/lib/Basic/SourceManager.cpp
@@ -19,7 +19,7 @@
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <algorithm>
 #include <string>
 #include <cstring>
diff --git a/clang/lib/Checker/AnalysisConsumer.cpp b/clang/lib/Checker/AnalysisConsumer.cpp
index 16ad5a7ef19..8024fbd8c8c 100644
--- a/clang/lib/Checker/AnalysisConsumer.cpp
+++ b/clang/lib/Checker/AnalysisConsumer.cpp
@@ -35,8 +35,8 @@
 #include "clang/Frontend/AnalyzerOptions.h"
 #include "clang/Lex/Preprocessor.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Program.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
 #include "llvm/ADT/OwningPtr.h"
 
 using namespace clang;
diff --git a/clang/lib/Checker/HTMLDiagnostics.cpp b/clang/lib/Checker/HTMLDiagnostics.cpp
index ff9867fb5f1..6b0bb7db2d3 100644
--- a/clang/lib/Checker/HTMLDiagnostics.cpp
+++ b/clang/lib/Checker/HTMLDiagnostics.cpp
@@ -23,7 +23,7 @@
 #include "clang/Lex/Preprocessor.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 
 using namespace clang;
 
diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index e033d2fa691..f01690665c6 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -32,7 +32,7 @@
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/Dwarf.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Target/TargetMachine.h"
 using namespace clang;
 using namespace clang::CodeGen;
diff --git a/clang/lib/Driver/Compilation.cpp b/clang/lib/Driver/Compilation.cpp
index 446b2ed5f18..6626febc53e 100644
--- a/clang/lib/Driver/Compilation.cpp
+++ b/clang/lib/Driver/Compilation.cpp
@@ -17,7 +17,7 @@
 #include "clang/Driver/ToolChain.h"
 
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Program.h"
+#include "llvm/Support/Program.h"
 #include <sys/stat.h>
 #include <errno.h>
 using namespace clang::driver;
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 5bb9a651d09..98c1a21559f 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -30,8 +30,8 @@
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/Support/PrettyStackTrace.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Program.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
 
 #include "InputInfo.h"
 
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index d80b1e7653d..2de7c30abc2 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -25,7 +25,7 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 
 #include <cstdlib> // ::getenv
 
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index fafe1d2e153..8d27bf59386 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -27,8 +27,8 @@
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Process.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Process.h"
 
 #include "InputInfo.h"
 #include "ToolChains.h"
diff --git a/clang/lib/Frontend/ASTConsumers.cpp b/clang/lib/Frontend/ASTConsumers.cpp
index 5c7c02da9b0..274d3ad6f3d 100644
--- a/clang/lib/Frontend/ASTConsumers.cpp
+++ b/clang/lib/Frontend/ASTConsumers.cpp
@@ -24,7 +24,7 @@
 #include "llvm/Module.h"
 #include "llvm/Support/Timer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 using namespace clang;
 
 //===----------------------------------------------------------------------===//
diff --git a/clang/lib/Frontend/ASTUnit.cpp b/clang/lib/Frontend/ASTUnit.cpp
index 09403620ac7..a43d0d3ca11 100644
--- a/clang/lib/Frontend/ASTUnit.cpp
+++ b/clang/lib/Frontend/ASTUnit.cpp
@@ -35,8 +35,8 @@
 #include "clang/Basic/Diagnostic.h"
 #include "llvm/ADT/StringSet.h"
 #include "llvm/Support/MemoryBuffer.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Timer.h"
 #include <cstdlib>
diff --git a/clang/lib/Frontend/CacheTokens.cpp b/clang/lib/Frontend/CacheTokens.cpp
index ae4cdb5063a..ee8c8aaa2c2 100644
--- a/clang/lib/Frontend/CacheTokens.cpp
+++ b/clang/lib/Frontend/CacheTokens.cpp
@@ -25,7 +25,7 @@
 #include "llvm/ADT/StringMap.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 
 // FIXME: put this somewhere else?
 #ifndef S_ISDIR
diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 7f3eb21bb8c..b5feadb96de 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -32,10 +32,10 @@
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Support/Timer.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Program.h"
-#include "llvm/System/Signals.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
+#include "llvm/Support/Signals.h"
 using namespace clang;
 
 CompilerInstance::CompilerInstance()
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 80643b2d4be..c00ffc88a6d 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -26,8 +26,8 @@
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/Support/ErrorHandling.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Path.h"
 using namespace clang;
 
 static const char *getAnalysisName(Analyses Kind) {
diff --git a/clang/lib/Frontend/InitHeaderSearch.cpp b/clang/lib/Frontend/InitHeaderSearch.cpp
index a7166423d10..9df1e02a1b8 100644
--- a/clang/lib/Frontend/InitHeaderSearch.cpp
+++ b/clang/lib/Frontend/InitHeaderSearch.cpp
@@ -23,7 +23,7 @@
 #include "llvm/ADT/Triple.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Config/config.h"
 #ifdef _MSC_VER
   #define WIN32_LEAN_AND_MEAN 1
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index 08ced99c081..e3279c2021a 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -23,7 +23,7 @@
 #include "clang/Basic/SourceManager.h"
 #include "llvm/ADT/APFloat.h"
 #include "llvm/Support/MemoryBuffer.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 using namespace clang;
 
 // Append a #define line to Buf for Macro.  Macro should be of the form XXX,
diff --git a/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp b/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
index 711cbb64006..de87fbdab3c 100644
--- a/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
+++ b/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
@@ -24,7 +24,7 @@
 #include "clang/Frontend/FrontendPluginRegistry.h"
 #include "clang/Rewrite/FrontendActions.h"
 #include "llvm/Support/ErrorHandling.h"
-#include "llvm/System/DynamicLibrary.h"
+#include "llvm/Support/DynamicLibrary.h"
 using namespace clang;
 
 static FrontendAction *CreateFrontendBaseAction(CompilerInstance &CI) {
diff --git a/clang/lib/Lex/HeaderMap.cpp b/clang/lib/Lex/HeaderMap.cpp
index 81a58d41830..be3f7019212 100644
--- a/clang/lib/Lex/HeaderMap.cpp
+++ b/clang/lib/Lex/HeaderMap.cpp
@@ -15,7 +15,7 @@
 #include "clang/Basic/FileManager.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/ADT/SmallString.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include <cstdio>
diff --git a/clang/lib/Lex/HeaderSearch.cpp b/clang/lib/Lex/HeaderSearch.cpp
index 8d89048c787..6b7409081be 100644
--- a/clang/lib/Lex/HeaderSearch.cpp
+++ b/clang/lib/Lex/HeaderSearch.cpp
@@ -15,7 +15,7 @@
 #include "clang/Lex/HeaderMap.h"
 #include "clang/Basic/FileManager.h"
 #include "clang/Basic/IdentifierTable.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include "llvm/ADT/SmallString.h"
 #include <cstdio>
 using namespace clang;
diff --git a/clang/lib/Rewrite/FixItRewriter.cpp b/clang/lib/Rewrite/FixItRewriter.cpp
index 09dcfa622f0..8dcc5dcba78 100644
--- a/clang/lib/Rewrite/FixItRewriter.cpp
+++ b/clang/lib/Rewrite/FixItRewriter.cpp
@@ -19,7 +19,7 @@
 #include "clang/Basic/SourceManager.h"
 #include "clang/Frontend/FrontendDiagnostic.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include "llvm/ADT/OwningPtr.h"
 #include <cstdio>
 
diff --git a/clang/lib/Rewrite/FrontendActions.cpp b/clang/lib/Rewrite/FrontendActions.cpp
index f8f1efa2952..ec99ace18a9 100644
--- a/clang/lib/Rewrite/FrontendActions.cpp
+++ b/clang/lib/Rewrite/FrontendActions.cpp
@@ -20,7 +20,7 @@
 #include "clang/Rewrite/Rewriters.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 using namespace clang;
 
 //===----------------------------------------------------------------------===//
diff --git a/clang/lib/Rewrite/RewriteMacros.cpp b/clang/lib/Rewrite/RewriteMacros.cpp
index 910fa6ba4c2..2efa69479c2 100644
--- a/clang/lib/Rewrite/RewriteMacros.cpp
+++ b/clang/lib/Rewrite/RewriteMacros.cpp
@@ -17,7 +17,7 @@
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Basic/SourceManager.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include "llvm/ADT/OwningPtr.h"
 #include <cstdio>
 
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 39d538a5b84..86732484bcd 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -40,7 +40,7 @@
 #include "llvm/Bitcode/BitstreamReader.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/ErrorHandling.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <algorithm>
 #include <iterator>
 #include <cstdio>
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 468729a371b..b143ce4b1b5 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -41,7 +41,7 @@
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/Bitcode/BitstreamWriter.h"
 #include "llvm/Support/MemoryBuffer.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <cstdio>
 using namespace clang;
 using namespace clang::serialization;
diff --git a/clang/runtime/libcxx/Makefile b/clang/runtime/libcxx/Makefile
index bbe5b67c405..e0780206305 100644
--- a/clang/runtime/libcxx/Makefile
+++ b/clang/runtime/libcxx/Makefile
@@ -43,7 +43,7 @@ ifeq ($(HOST_OS),Darwin)
     LLVMLibsOptions += -Wl,-compatibility_version,1
 
     # Don't link with default libraries.
-    LLVMLibsOptions += -nodefaultlibs -lSystem
+    LLVMLibsOptions += -nodefaultlibs -lSupport
 
     # Reexport libc++abi.
     LLVMLibsOptions += -Wl,-reexport_library,/usr/lib/libc++abi.dylib
diff --git a/clang/tools/driver/cc1as_main.cpp b/clang/tools/driver/cc1as_main.cpp
index fb68d07ab25..a0901fd7555 100644
--- a/clang/tools/driver/cc1as_main.cpp
+++ b/clang/tools/driver/cc1as_main.cpp
@@ -39,9 +39,9 @@
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/Timer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Signals.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Signals.h"
 #include "llvm/Target/TargetAsmBackend.h"
 #include "llvm/Target/TargetAsmParser.h"
 #include "llvm/Target/TargetData.h"
diff --git a/clang/tools/driver/driver.cpp b/clang/tools/driver/driver.cpp
index 57765fed803..e0021505185 100644
--- a/clang/tools/driver/driver.cpp
+++ b/clang/tools/driver/driver.cpp
@@ -29,10 +29,10 @@
 #include "llvm/Support/Regex.h"
 #include "llvm/Support/Timer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Program.h"
-#include "llvm/System/Signals.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
+#include "llvm/Support/Signals.h"
 using namespace clang;
 using namespace clang::driver;
 
diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 7de7d40e03d..7fc2f6ebb4a 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -40,10 +40,10 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Timer.h"
-#include "llvm/System/Mutex.h"
-#include "llvm/System/Program.h"
-#include "llvm/System/Signals.h"
-#include "llvm/System/Threading.h"
+#include "llvm/Support/Mutex.h"
+#include "llvm/Support/Program.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/Threading.h"
 #include "llvm/Support/Compiler.h"
 
 using namespace clang;
diff --git a/clang/tools/libclang/CIndexCodeCompletion.cpp b/clang/tools/libclang/CIndexCodeCompletion.cpp
index 7fb1e8022b3..7441f4fa1d0 100644
--- a/clang/tools/libclang/CIndexCodeCompletion.cpp
+++ b/clang/tools/libclang/CIndexCodeCompletion.cpp
@@ -28,7 +28,7 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Timer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Program.h"
+#include "llvm/Support/Program.h"
 #include <cstdlib>
 #include <cstdio>
 
diff --git a/clang/tools/libclang/CIndexer.cpp b/clang/tools/libclang/CIndexer.cpp
index 95949b899b2..992d76a2efe 100644
--- a/clang/tools/libclang/CIndexer.cpp
+++ b/clang/tools/libclang/CIndexer.cpp
@@ -25,7 +25,7 @@
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Program.h"
+#include "llvm/Support/Program.h"
 
 #include <cstdio>
 #include <vector>
diff --git a/clang/tools/libclang/CIndexer.h b/clang/tools/libclang/CIndexer.h
index 8bcdce343ad..b40891a02f6 100644
--- a/clang/tools/libclang/CIndexer.h
+++ b/clang/tools/libclang/CIndexer.h
@@ -17,7 +17,7 @@
 
 #include "clang-c/Index.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/System/Path.h"
+#include "llvm/Support/Path.h"
 #include <vector>
 
 namespace llvm {