Clang toolchain driver for PNaCl

include/clang/Driver/ToolChain.h

Index: include/clang/Driver/ToolChain.h
diff --git a/include/clang/Driver/ToolChain.h b/include/clang/Driver/ToolChain.h
index 560df19e25cea6bce09d5ac9c19cba5e2d3c243a..8df16e1794404d6b1cb969fe406ef8ab40893633 100644
--- a/include/clang/Driver/ToolChain.h
+++ b/include/clang/Driver/ToolChain.h
@@ -345,6 +345,9 @@ public:
   virtual bool
   AddFastMathRuntimeIfAvailable(const llvm::opt::ArgList &Args,
                                 llvm::opt::ArgStringList &CmdArgs) const;
+
+  /// isVirtualTarget - Whether the toolchain has a coresponding backend target.
+  virtual bool isVirtualTarget() const { return false; }

[Derek Schuff, 2016/02/02 23:19:11]

This should probably have a different name because virtual target would imply
something like NVPTX or wasm; i.e. targets with backends but not physical
hardware. Maybe isBitcodeOnlyTarget?

[Petr Hosek, 2016/02/03 22:49:26]

Done.

 };
 
 } // end namespace driver