Fix build

llvm-svn: 263372

diff --git a/llvm/include/llvm/ADT/APFloat.h b/llvm/include/llvm/ADT/APFloat.h
index 45daeca..4d4ba8f 100644 (file)
--- a/llvm/include/llvm/ADT/APFloat.h
+++ b/llvm/include/llvm/ADT/APFloat.h
@@ -642,6 +642,7 @@ private:
 /// These additional declarations are required in order to compile LLVM with IBM
 /// xlC compiler.
 hash_code hash_value(const APFloat &Arg);
+int ilogb(const APFloat &Arg);
 APFloat scalbn(APFloat X, int Exp, APFloat::roundingMode);
 
 /// \brief Returns the absolute value of the argument.