Revert r122143 through r122140, which collectively broke the LLVMC tests on
the buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122149 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CompilerDriver/CompilationGraph.cpp b/lib/CompilerDriver/CompilationGraph.cpp
index 0e8f5d5..87a2c48 100644
--- a/lib/CompilerDriver/CompilationGraph.cpp
+++ b/lib/CompilerDriver/CompilationGraph.cpp
@@ -32,7 +32,7 @@
 namespace llvmc {
 
   const std::string* LanguageMap::GetLanguage(const sys::Path& File) const {
-    StringRef suf = sys::path::extension(File.str());
+    StringRef suf = File.getSuffix();
     LanguageMap::const_iterator Lang =
       this->find(suf.empty() ? "*empty*" : suf);
     if (Lang == this->end()) {
diff --git a/lib/CompilerDriver/Main.cpp b/lib/CompilerDriver/Main.cpp
index 88cfdb2..4f87940 100644
--- a/lib/CompilerDriver/Main.cpp
+++ b/lib/CompilerDriver/Main.cpp
@@ -43,7 +43,8 @@
       return 0;
     }
     else if (SaveTemps == SaveTempsEnum::Obj && !OutputFilename.empty()) {
-      tempDir = sys::path::parent_path(OutputFilename);
+      tempDir = OutputFilename;
+      tempDir = tempDir.getDirname();
     }
     else {
       // SaveTemps == Cwd --> use current dir (leave tempDir empty).
diff --git a/lib/CompilerDriver/Tool.cpp b/lib/CompilerDriver/Tool.cpp
index 876759a..232bd41 100644
--- a/lib/CompilerDriver/Tool.cpp
+++ b/lib/CompilerDriver/Tool.cpp
@@ -61,7 +61,7 @@
       Out.appendSuffix(OutputSuffix);
     }
     else {
-      Out.set(sys::path::stem(In.str()));
+      Out.set(In.getBasename());
       Out.appendSuffix(OutputSuffix);
     }
   }
@@ -69,7 +69,7 @@
     if (IsJoin())
       Out = MakeTempFile(TempDir, "tmp", OutputSuffix);
     else
-      Out = MakeTempFile(TempDir, sys::path::stem(In.str()), OutputSuffix);
+      Out = MakeTempFile(TempDir, In.getBasename(), OutputSuffix);
   }
   return Out;
 }