Driver: Move Clang "triple" computation routines to method on the

ToolChain. This fixes a potenial bad cast when running Clang on PPC code, since
the tool chain in effect is not a subclass of the Darwin one, but we were
treating it like it was.
 - This introduces some gross code duplication, but the right fix for it is to
   just move the Driver to start depending on the targets in libBasic, so I am
   not planning on fixing it immediately.

llvm-svn: 111856

1 files changed, 4 insertions, 0 deletions

diff --git a/clang/lib/Driver/ToolChains.h b/clang/lib/Driver/ToolChains.h
index 742daadab80..d1f15565e6c 100644
--- a/clang/lib/Driver/ToolChains.h
+++ b/clang/lib/Driver/ToolChains.h
@@ -73,6 +73,8 @@ public:
   Darwin(const HostInfo &Host, const llvm::Triple& Triple);
   ~Darwin();
 
+  std::string ComputeEffectiveClangTriple(const ArgList &Args) const;
+
   /// @name Darwin Specific Toolchain API
   /// {
 
@@ -251,6 +253,8 @@ public:
   Darwin_Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple)
     : Generic_GCC(Host, Triple) {}
 
+  std::string ComputeEffectiveClangTriple(const ArgList &Args) const;
+
   virtual const char *GetDefaultRelocationModel() const { return "pic"; }
 };