[opaque pointer type] Serialize the type of an llvm::Function as a function type rather than a function pointer type

llvm-svn: 235200

1 files changed, 3 insertions, 4 deletions

diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index e37e8f49b33..a3552e92a53 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -2935,10 +2935,9 @@ std::error_code BitcodeReader::ParseModule(bool Resume,
       Type *Ty = getTypeByID(Record[0]);
       if (!Ty)
         return Error("Invalid record");
-      if (!Ty->isPointerTy())
-        return Error("Invalid type for value");
-      FunctionType *FTy =
-        dyn_cast<FunctionType>(cast<PointerType>(Ty)->getElementType());
+      if (auto *PTy = dyn_cast<PointerType>(Ty))
+        Ty = PTy->getElementType();
+      auto *FTy = dyn_cast<FunctionType>(Ty);
       if (!FTy)
         return Error("Invalid type for value");