back out r114279 as some darwin buildbots get errors compiling clang:

svn merge -c -114279 llvm/include/llvm/Support/Casting.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114280 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Support/Casting.h b/include/llvm/Support/Casting.h
index 6bb98064382e3f06a0cb219f9d124cd2d5830919..c589171bbafe67e00cbb950a1b660e576f9b5444 100644 (file)
--- a/include/llvm/Support/Casting.h
+++ b/include/llvm/Support/Casting.h
@@ -232,8 +232,8 @@ inline typename cast_retty<X, Y>::ret_type dyn_cast(const Y &Val) {
 // value is accepted.
 //
 template <class X, class Y>
-inline typename cast_retty<X, Y*>::ret_type dyn_cast_or_null(Y *Val) {
-  return (Val && isa<X>(Val)) ? cast<X>(Val) : 0;
+inline typename cast_retty<X, Y>::ret_type dyn_cast_or_null(const Y &Val) {
+  return (Val && isa<X>(Val)) ? cast<X, Y>(Val) : 0;
 }
 
 } // End llvm namespace