; Instcombine was missing a test that caused it to make illegal transformations
; sometimes. In this case, it transforms the sub into an add:
; RUN: echo foo
-; RUN: if as < %s | opt -instcombine | dis | grep add
-; RUN: then exit 1
-; RUN: else exit 0
-; RUN: fi
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep add
;