diff --git a/lib/Driver/InputInfo.h b/lib/Driver/InputInfo.h
index c657bef..2a2f4b9 100644
--- a/lib/Driver/InputInfo.h
+++ b/lib/Driver/InputInfo.h
@@ -17,7 +17,6 @@
 
 namespace clang {
 namespace driver {
-  class PipedJob;
 
 /// InputInfo - Wrapper for information about an input source.
 class InputInfo {
@@ -37,7 +36,6 @@
   union {
     const char *Filename;
     const Arg *InputArg;
-    PipedJob *Pipe;
   } Data;
   Class Kind;
   types::ID Type;
@@ -56,15 +54,10 @@
     : Kind(InputArg), Type(_Type), BaseInput(_BaseInput) {
     Data.InputArg = _InputArg;
   }
-  InputInfo(PipedJob *_Pipe, types::ID _Type, const char *_BaseInput)
-    : Kind(Pipe), Type(_Type), BaseInput(_BaseInput) {
-    Data.Pipe = _Pipe;
-  }
 
   bool isNothing() const { return Kind == Nothing; }
   bool isFilename() const { return Kind == Filename; }
   bool isInputArg() const { return Kind == InputArg; }
-  bool isPipe() const { return Kind == Pipe; }
   types::ID getType() const { return Type; }
   const char *getBaseInput() const { return BaseInput; }
 
@@ -76,17 +69,11 @@
     assert(isInputArg() && "Invalid accessor.");
     return *Data.InputArg;
   }
-  PipedJob &getPipe() const {
-    assert(isPipe() && "Invalid accessor.");
-    return *Data.Pipe;
-  }
 
   /// getAsString - Return a string name for this input, for
   /// debugging.
   std::string getAsString() const {
-    if (isPipe())
-      return "(pipe)";
-    else if (isFilename())
+    if (isFilename())
       return std::string("\"") + getFilename() + '"';
     else if (isInputArg())
       return "(input arg)";
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 7a5c508..e917692 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -105,10 +105,7 @@
     // Determine the output location.
     const char *DepFile;
     if (Output.getType() == types::TY_Dependencies) {
-      if (Output.isPipe())
-        DepFile = "-";
-      else
-        DepFile = Output.getFilename();
+      DepFile = Output.getFilename();
     } else if (Arg *MF = Args.getLastArg(options::OPT_MF)) {
       DepFile = MF->getValue(Args);
     } else if (A->getOption().matches(options::OPT_M) ||
@@ -1474,9 +1471,6 @@
 
   if (Output.getType() == types::TY_Dependencies) {
     // Handled with other dependency code.
-  } else if (Output.isPipe()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back("-");
   } else if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
@@ -1489,9 +1483,7 @@
     const InputInfo &II = *it;
     CmdArgs.push_back("-x");
     CmdArgs.push_back(types::getTypeName(II.getType()));
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else if (II.isFilename())
+    if (II.isFilename())
       CmdArgs.push_back(II.getFilename());
     else
       II.getInputArg().renderAsInput(Args, CmdArgs);
@@ -1591,12 +1583,8 @@
   CmdArgs.push_back("-o");
   CmdArgs.push_back(Output.getFilename());
 
-  if (Input.isPipe()) {
-    CmdArgs.push_back("-");
-  } else {
-    assert(Input.isFilename() && "Invalid input.");
-    CmdArgs.push_back(Input.getFilename());
-  }
+  assert(Input.isFilename() && "Invalid input.");
+  CmdArgs.push_back(Input.getFilename());
 
   const char *Exec = getToolChain().getDriver().getClangProgramPath();
   Dest.addCommand(new Command(JA, *this, Exec, CmdArgs));
@@ -1650,10 +1638,7 @@
   else if (Arch == "x86_64" || Arch == "powerpc64")
     CmdArgs.push_back("-m64");
 
-  if (Output.isPipe()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back("-");
-  } else if (Output.isFilename()) {
+  if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   } else {
@@ -1688,9 +1673,7 @@
       CmdArgs.push_back(types::getTypeName(II.getType()));
     }
 
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else if (II.isFilename())
+    if (II.isFilename())
       CmdArgs.push_back(II.getFilename());
     else
       // Don't render as input, we need gcc to do the translations.
@@ -2032,10 +2015,7 @@
          it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
     const InputInfo &II = *it;
 
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else
-      CmdArgs.push_back(II.getFilename());
+    CmdArgs.push_back(II.getFilename());
   }
 
   Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA,
@@ -2088,12 +2068,9 @@
     CmdArgs.push_back("-traditional-cpp");
 
   ArgStringList OutputArgs;
-  if (Output.isFilename()) {
-    OutputArgs.push_back("-o");
-    OutputArgs.push_back(Output.getFilename());
-  } else {
-    assert(Output.isPipe() && "Unexpected CC1 output.");
-  }
+  assert(Output.isFilename() && "Unexpected CC1 output.");
+  OutputArgs.push_back("-o");
+  OutputArgs.push_back(Output.getFilename());
 
   if (Args.hasArg(options::OPT_E)) {
     AddCPPOptionsArgs(Args, CmdArgs, Inputs, OutputArgs);
@@ -2143,9 +2120,7 @@
   ArgStringList OutputArgs;
   if (Output.getType() != types::TY_PCH) {
     OutputArgs.push_back("-o");
-    if (Output.isPipe())
-      OutputArgs.push_back("-");
-    else if (Output.isNothing())
+    if (Output.isNothing())
       OutputArgs.push_back("/dev/null");
     else
       OutputArgs.push_back(Output.getFilename());
@@ -2178,10 +2153,7 @@
         return;
       }
 
-      if (II.isPipe())
-        CmdArgs.push_back("-");
-      else
-        CmdArgs.push_back(II.getFilename());
+      CmdArgs.push_back(II.getFilename());
     }
 
     if (OutputArgsEarly) {
@@ -2253,12 +2225,8 @@
   CmdArgs.push_back("-o");
   CmdArgs.push_back(Output.getFilename());
 
-  if (Input.isPipe()) {
-    CmdArgs.push_back("-");
-  } else {
-    assert(Input.isFilename() && "Invalid input.");
-    CmdArgs.push_back(Input.getFilename());
-  }
+  assert(Input.isFilename() && "Invalid input.");
+  CmdArgs.push_back(Input.getFilename());
 
   // asm_final spec is empty.
 
@@ -2641,18 +2609,12 @@
                        options::OPT_Xassembler);
 
   CmdArgs.push_back("-o");
-  if (Output.isPipe())
-    CmdArgs.push_back("-");
-  else
-    CmdArgs.push_back(Output.getFilename());
+  CmdArgs.push_back(Output.getFilename());
 
   for (InputInfoList::const_iterator
          it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
     const InputInfo &II = *it;
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else
-      CmdArgs.push_back(II.getFilename());
+    CmdArgs.push_back(II.getFilename());
   }
 
   const char *Exec =
@@ -2688,10 +2650,7 @@
     }
   }
 
-  if (Output.isPipe()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back("-");
-  } else if (Output.isFilename()) {
+  if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   } else {
@@ -2733,9 +2692,7 @@
       D.Diag(clang::diag::err_drv_no_linker_llvm_support)
         << getToolChain().getTripleString();
 
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else if (II.isFilename())
+    if (II.isFilename())
       CmdArgs.push_back(II.getFilename());
     else
       II.getInputArg().renderAsInput(Args, CmdArgs);
@@ -2777,18 +2734,12 @@
                        options::OPT_Xassembler);
 
   CmdArgs.push_back("-o");
-  if (Output.isPipe())
-    CmdArgs.push_back("-");
-  else
-    CmdArgs.push_back(Output.getFilename());
+  CmdArgs.push_back(Output.getFilename());
 
   for (InputInfoList::const_iterator
          it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
     const InputInfo &II = *it;
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else
-      CmdArgs.push_back(II.getFilename());
+    CmdArgs.push_back(II.getFilename());
   }
 
   const char *Exec =
@@ -2823,10 +2774,7 @@
     }
   }
 
-  if (Output.isPipe()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back("-");
-  } else if (Output.isFilename()) {
+  if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   } else {
@@ -2866,9 +2814,7 @@
       D.Diag(clang::diag::err_drv_no_linker_llvm_support)
         << getToolChain().getTripleString();
 
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else if (II.isFilename())
+    if (II.isFilename())
       CmdArgs.push_back(II.getFilename());
     else
       II.getInputArg().renderAsInput(Args, CmdArgs);
@@ -2930,18 +2876,12 @@
                        options::OPT_Xassembler);
 
   CmdArgs.push_back("-o");
-  if (Output.isPipe())
-    CmdArgs.push_back("-");
-  else
-    CmdArgs.push_back(Output.getFilename());
+  CmdArgs.push_back(Output.getFilename());
 
   for (InputInfoList::const_iterator
          it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
     const InputInfo &II = *it;
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else
-      CmdArgs.push_back(II.getFilename());
+    CmdArgs.push_back(II.getFilename());
   }
 
   const char *Exec =
@@ -2976,10 +2916,7 @@
     CmdArgs.push_back("elf_i386_fbsd");
   }
 
-  if (Output.isPipe()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back("-");
-  } else if (Output.isFilename()) {
+  if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   } else {
@@ -3017,9 +2954,7 @@
       D.Diag(clang::diag::err_drv_no_linker_llvm_support)
         << getToolChain().getTripleString();
 
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else if (II.isFilename())
+    if (II.isFilename())
       CmdArgs.push_back(II.getFilename());
     else
       II.getInputArg().renderAsInput(Args, CmdArgs);
@@ -3084,18 +3019,12 @@
                        options::OPT_Xassembler);
 
   CmdArgs.push_back("-o");
-  if (Output.isPipe())
-    CmdArgs.push_back("-");
-  else
-    CmdArgs.push_back(Output.getFilename());
+  CmdArgs.push_back(Output.getFilename());
 
   for (InputInfoList::const_iterator
          it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
     const InputInfo &II = *it;
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else
-      CmdArgs.push_back(II.getFilename());
+    CmdArgs.push_back(II.getFilename());
   }
 
   const char *Exec =
@@ -3111,10 +3040,7 @@
   const Driver &D = getToolChain().getDriver();
   ArgStringList CmdArgs;
 
-  if (Output.isPipe()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back("-");
-  } else if (Output.isFilename()) {
+  if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   } else {
@@ -3140,9 +3066,7 @@
       D.Diag(clang::diag::err_drv_no_linker_llvm_support)
         << getToolChain().getTripleString();
 
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else if (II.isFilename())
+    if (II.isFilename())
       CmdArgs.push_back(II.getFilename());
     else
       II.getInputArg().renderAsInput(Args, CmdArgs);
@@ -3196,18 +3120,12 @@
                        options::OPT_Xassembler);
 
   CmdArgs.push_back("-o");
-  if (Output.isPipe())
-    CmdArgs.push_back("-");
-  else
-    CmdArgs.push_back(Output.getFilename());
+  CmdArgs.push_back(Output.getFilename());
 
   for (InputInfoList::const_iterator
          it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
     const InputInfo &II = *it;
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else
-      CmdArgs.push_back(II.getFilename());
+    CmdArgs.push_back(II.getFilename());
   }
 
   const char *Exec =
@@ -3241,10 +3159,7 @@
     CmdArgs.push_back("elf_i386");
   }
 
-  if (Output.isPipe()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back("-");
-  } else if (Output.isFilename()) {
+  if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   } else {
@@ -3282,9 +3197,7 @@
       D.Diag(clang::diag::err_drv_no_linker_llvm_support)
         << getToolChain().getTripleString();
 
-    if (II.isPipe())
-      CmdArgs.push_back("-");
-    else if (II.isFilename())
+    if (II.isFilename())
       CmdArgs.push_back(II.getFilename());
     else
       II.getInputArg().renderAsInput(Args, CmdArgs);