Remove explicit control flow through the use of the 'not' script

llvm-svn: 6965
diff --git a/llvm/test/Regression/Transforms/BasicAA/featuretest.ll b/llvm/test/Regression/Transforms/BasicAA/featuretest.ll
index 803dafb..0b798e2 100644
--- a/llvm/test/Regression/Transforms/BasicAA/featuretest.ll
+++ b/llvm/test/Regression/Transforms/BasicAA/featuretest.ll
@@ -1,10 +1,7 @@
 ; This testcase tests for various features the basicaa test should be able to 
 ; determine, as noted in the comments.
 
-; RUN: if as < %s | opt -basicaa -load-vn -gcse -instcombine -dce | dis | grep REMOVE
-; RUN: then exit 1
-; RUN: else exit 0
-; RUN: fi
+; RUN: as < %s | opt -basicaa -load-vn -gcse -instcombine -dce | dis | not grep REMOVE
 
 %Global = external global { int }