1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains/Darwin.h b/clang/lib/Driver/ToolChains/Darwin.h
index 2dc7c85880f7..1b193a4c4eb9 100644
--- a/clang/lib/Driver/ToolChains/Darwin.h
+++ b/clang/lib/Driver/ToolChains/Darwin.h
@@ -167,6 +167,10 @@ public:
   virtual void addMinVersionArgs(const llvm::opt::ArgList &Args,
                                  llvm::opt::ArgStringList &CmdArgs) const {}
 
+  virtual void addPlatformVersionArgs(const llvm::opt::ArgList &Args,
+                                      llvm::opt::ArgStringList &CmdArgs) const {
+  }
+
   /// On some iOS platforms, kernel and kernel modules were built statically. Is
   /// this such a target?
   virtual bool isKernelStatic() const { return false; }
@@ -258,6 +262,9 @@ public:
     return "";
   }
 
+  // Darwin toolchain uses legacy thin LTO API, which is not
+  // capable of unit splitting.
+  bool canSplitThinLTOUnit() const override { return false; }
   /// }
 };
 
@@ -311,6 +318,9 @@ public:
   void addMinVersionArgs(const llvm::opt::ArgList &Args,
                          llvm::opt::ArgStringList &CmdArgs) const override;
 
+  void addPlatformVersionArgs(const llvm::opt::ArgList &Args,
+                              llvm::opt::ArgStringList &CmdArgs) const override;
+
   void addStartObjectFileArgs(const llvm::opt::ArgList &Args,
                               llvm::opt::ArgStringList &CmdArgs) const override;