The `noundef` attribute indicates an argument or return value which may never have an undef value representation. This patch allows LLVM to parse the attribute. Differential Revision: https://reviews.llvm.org/D83412
The `noundef` attribute indicates an argument or return value which may never have an undef value representation. This patch allows LLVM to parse the attribute. Differential Revision: https://reviews.llvm.org/D83412