diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y
index f2e6404d307..d76994a431a 100644
--- a/lib/AsmParser/llvmAsmParser.y
+++ b/lib/AsmParser/llvmAsmParser.y
@@ -418,6 +418,7 @@ static Value *getExistingVal(const Type *Ty, const ValID &D) {
 
     {
       APSInt Tmp = *D.ConstPoolInt;
+      D.destroy();
       Tmp.extOrTrunc(Ty->getPrimitiveSizeInBits());
       return ConstantInt::get(Tmp);
     }