1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/IR/AsmWriter.cpp b/llvm/lib/IR/AsmWriter.cpp
index 4d4ffe93a806..b7106fea2248 100644
--- a/llvm/lib/IR/AsmWriter.cpp
+++ b/llvm/lib/IR/AsmWriter.cpp
@@ -1806,6 +1806,15 @@ static void writeConstantInternal(raw_ostream &Out, const Constant *CV,
       }
     }
 
+    // Use zeroinitializer for inttoptr(0) constant expression.
+    if (CE->getOpcode() == Instruction::IntToPtr) {
+      Constant *SrcCI = cast<Constant>(CE->getOperand(0));
+      if (SrcCI->isZeroValue()) {
+        Out << "zeroinitializer";
+        return;
+      }
+    }
+
     Out << CE->getOpcodeName();
     writeOptimizationInfo(Out, CE);
     Out << " (";