// Promote i8/i16 arguments to i32.
CCIfType<[i8, i16], CCPromoteToType<i32>>,
+ // The 'nest' parameter, if any, is passed in R11.
+ CCIfNest<CCAssignToReg<[R11]>>,
+
// The first 4 integer arguments are passed in integer registers.
CCIfType<[i32], CCAssignToReg<[R0, R1, R2, R3]>>,