Reapply a subset of r167567 to clean up Darwin-specific code for invoking gcc.

Unlike my previous attempt at this, this patch leaves intact the check for
whether clang can handle the input file type, and for non-Darwin toolchains it
will invoke gcc for things it cannot handle. For Darwin toolchains, the
behavior reported in pr14338 still occurs with this patch, but that is a
definite improvement from what happens currently, where it just crashes with
an assertion failure.

llvm-svn: 168505

1 files changed, 7 insertions, 57 deletions

diff --git a/clang/lib/Driver/Tools.h b/clang/lib/Driver/Tools.h
index 5898c660a49..cef7d80d982 100644
--- a/clang/lib/Driver/Tools.h
+++ b/clang/lib/Driver/Tools.h
@@ -31,6 +31,13 @@ namespace tools {
 
   /// \brief Clang compiler tool.
   class LLVM_LIBRARY_VISIBILITY Clang : public Tool {
+    static const char *getBaseInputName(const ArgList &Args,
+                                        const InputInfoList &Inputs);
+    static const char *getBaseInputStem(const ArgList &Args,
+                                        const InputInfoList &Inputs);
+    static const char *getDependencyFileName(const ArgList &Args,
+                                             const InputInfoList &Inputs);
+
     void AddPreprocessingOptions(Compilation &C,
                                  const Driver &D,
                                  const ArgList &Args,
@@ -218,63 +225,6 @@ namespace darwin {
                const ToolChain &TC) : Tool(Name, ShortName, TC) {}
   };
 
-  class LLVM_LIBRARY_VISIBILITY CC1 : public DarwinTool  {
-    virtual void anchor();
-  public:
-    static const char *getBaseInputName(const ArgList &Args,
-                                 const InputInfoList &Input);
-    static const char *getBaseInputStem(const ArgList &Args,
-                                 const InputInfoList &Input);
-    static const char *getDependencyFileName(const ArgList &Args,
-                                             const InputInfoList &Inputs);
-
-  protected:
-    const char *getCC1Name(types::ID Type) const;
-
-    void AddCC1Args(const ArgList &Args, ArgStringList &CmdArgs) const;
-    void RemoveCC1UnsupportedArgs(ArgStringList &CmdArgs) const;
-    void AddCC1OptionsArgs(const ArgList &Args, ArgStringList &CmdArgs,
-                           const InputInfoList &Inputs,
-                           const ArgStringList &OutputArgs) const;
-    void AddCPPOptionsArgs(const ArgList &Args, ArgStringList &CmdArgs,
-                           const InputInfoList &Inputs,
-                           const ArgStringList &OutputArgs) const;
-    void AddCPPUniqueOptionsArgs(const ArgList &Args,
-                                 ArgStringList &CmdArgs,
-                                 const InputInfoList &Inputs) const;
-    void AddCPPArgs(const ArgList &Args, ArgStringList &CmdArgs) const;
-
-  public:
-    CC1(const char *Name, const char *ShortName,
-        const ToolChain &TC) : DarwinTool(Name, ShortName, TC) {}
-
-    virtual bool hasGoodDiagnostics() const { return true; }
-    virtual bool hasIntegratedCPP() const { return true; }
-  };
-
-  class LLVM_LIBRARY_VISIBILITY Preprocess : public CC1  {
-  public:
-    Preprocess(const ToolChain &TC) : CC1("darwin::Preprocess",
-                                          "gcc preprocessor", TC) {}
-
-    virtual void ConstructJob(Compilation &C, const JobAction &JA,
-                              const InputInfo &Output,
-                              const InputInfoList &Inputs,
-                              const ArgList &TCArgs,
-                              const char *LinkingOutput) const;
-  };
-
-  class LLVM_LIBRARY_VISIBILITY Compile : public CC1  {
-  public:
-    Compile(const ToolChain &TC) : CC1("darwin::Compile", "gcc frontend", TC) {}
-
-    virtual void ConstructJob(Compilation &C, const JobAction &JA,
-                              const InputInfo &Output,
-                              const InputInfoList &Inputs,
-                              const ArgList &TCArgs,
-                              const char *LinkingOutput) const;
-  };
-
   class LLVM_LIBRARY_VISIBILITY Assemble : public DarwinTool  {
   public:
     Assemble(const ToolChain &TC) : DarwinTool("darwin::Assemble",