Mark an impossible path as unreachable to pacify GCC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191436 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index cdcc36465b1d173a051211c536dc7731e8a43a51..450b5f0c82fc686bc0c5ffaacc9a187079adaf69 100644 (file)
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1625,6 +1625,7 @@ static llvm::VectorType *GetNeonType(CodeGenFunction *CGF,
   case NeonTypeFlags::Float64:
     return llvm::VectorType::get(CGF->DoubleTy, V1Ty ? 1 : (1 << IsQuad));
   }
+  llvm_unreachable("Unknown vector element type!");
 }
 
 Value *CodeGenFunction::EmitNeonSplat(Value *V, Constant *C) {