Merge r309860 from stable/9, as this also applies to stable/10:

Fix libllvmanalysis build failure after r309857: on stable/9, llvm is
compiled by gcc, and without -std=c++11, so the nullptr keyword is
unknown.  Use the old-school plain zero syntax instead.

1 files changed, 1 insertions, 1 deletions

diff --git a/contrib/llvm/lib/Analysis/LazyValueInfo.cpp b/contrib/llvm/lib/Analysis/LazyValueInfo.cpp
index dd0f4cc0..2fa6c8f 100644
--- a/contrib/llvm/lib/Analysis/LazyValueInfo.cpp
+++ b/contrib/llvm/lib/Analysis/LazyValueInfo.cpp
@@ -1051,7 +1051,7 @@ static bool isKnownNonConstant(Value *V) {
 Constant *LazyValueInfo::getConstant(Value *V, BasicBlock *BB) {
   // Bail out early if V is known not to be a Constant.
   if (isKnownNonConstant(V))
-    return nullptr;
+    return 0;
 
   LVILatticeVal Result = getCache(PImpl).getValueInBlock(V, BB);