add a missing check

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36859 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 283cd1df7751fe03f929c4ac88dbc11282de1d7e..2e9de1c1f132aff585e488e29c675dc8827d7481 100644 (file)
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -691,6 +691,7 @@ bool BitcodeReader::ParseConstants() {
         V = UndefValue::get(CurTy);  // Unknown cast.
       } else {
         const Type *OpTy = getTypeByID(Record[1]);
+        if (!OpTy) return Error("Invalid CE_CAST record");
         Constant *Op = ValueList.getConstantFwdRef(Record[2], OpTy);
         V = ConstantExpr::getCast(Opc, Op, CurTy);
       }