;FIXME: Once the ARM integrated assembler is up and going, these sorts of tests
; should run on .s source files rather than using llc to generate the
-; assembly.
+; assembly. There's also a large number of instruction encodings the
+; compiler never generates, so we need the integrated assembler to be
+; able to test those at all.
define i32 @foo(i32 %a, i32 %b) {
entry: