Upgrade our copy of llvm/clang to 3.4.1 release. This release contains

mostly fixes, for the following upstream bugs:

http://llvm.org/PR16365 http://llvm.org/PR17473 http://llvm.org/PR18000
http://llvm.org/PR18068 http://llvm.org/PR18102 http://llvm.org/PR18165
http://llvm.org/PR18260 http://llvm.org/PR18290 http://llvm.org/PR18316
http://llvm.org/PR18460 http://llvm.org/PR18473 http://llvm.org/PR18515
http://llvm.org/PR18526 http://llvm.org/PR18600 http://llvm.org/PR18762
http://llvm.org/PR18773 http://llvm.org/PR18860 http://llvm.org/PR18994
http://llvm.org/PR19007 http://llvm.org/PR19010 http://llvm.org/PR19033
http://llvm.org/PR19059 http://llvm.org/PR19144 http://llvm.org/PR19326

MFC after:	2 weeks

2 files changed, 5 insertions, 1 deletions

diff --git a/contrib/llvm/tools/clang/include/clang/Driver/Driver.h b/contrib/llvm/tools/clang/include/clang/Driver/Driver.h
index 867444e..73c8086 100644
--- a/contrib/llvm/tools/clang/include/clang/Driver/Driver.h
+++ b/contrib/llvm/tools/clang/include/clang/Driver/Driver.h
@@ -415,6 +415,10 @@ public:
                                 bool &HadExtra);
 };
 
+/// \return True if the last defined optimization level is -Ofast.
+/// And False otherwise.
+bool isOptimizationLevelFast(const llvm::opt::ArgList &Args);
+
 } // end namespace driver
 } // end namespace clang
 
diff --git a/contrib/llvm/tools/clang/include/clang/Driver/ToolChain.h b/contrib/llvm/tools/clang/include/clang/Driver/ToolChain.h
index 84e0b55..c212a83 100644
--- a/contrib/llvm/tools/clang/include/clang/Driver/ToolChain.h
+++ b/contrib/llvm/tools/clang/include/clang/Driver/ToolChain.h
@@ -303,7 +303,7 @@ public:
   /// AddFastMathRuntimeIfAvailable - If a runtime library exists that sets
   /// global flags for unsafe floating point math, add it and return true.
   ///
-  /// This checks for presence of the -ffast-math or -funsafe-math flags.
+  /// This checks for presence of the -Ofast, -ffast-math or -funsafe-math flags.
   virtual bool
   AddFastMathRuntimeIfAvailable(const llvm::opt::ArgList &Args,
                                 llvm::opt::ArgStringList &CmdArgs) const;