seanbruno added a comment. The code that is changing seems to apply fine, but three of the test files now fail to apply cleanly: ./test/CodeGen/Mips/fcopysign-f32-f64.ll.rej ./test/CodeGen/Mips/llvm-ir/call.ll.rej ./test/CodeGen/Mips/tailcall/tailcall.ll.rej https://reviews.llvm.org/D23652