Update CGExprConstant for change to emit padding values as undef.
- This fixes 2003-05-21-BitfieldHandling.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90876 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index 9289f78..d428983 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -167,7 +167,11 @@
}
// Or in the bits that go into the previous byte.
- Tmp |= cast<llvm::ConstantInt>(Elements.back())->getValue();
+ if (llvm::ConstantInt *Val = dyn_cast<llvm::ConstantInt>(Elements.back()))
+ Tmp |= Val->getValue();
+ else
+ assert(isa<llvm::UndefValue>(Elements.back()));
+
Elements.back() = llvm::ConstantInt::get(CGM.getLLVMContext(), Tmp);
if (FitsCompletelyInPreviousByte)