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

llvm-svn: 6965
diff --git a/llvm/test/Regression/Transforms/Reassociate/basictest.ll b/llvm/test/Regression/Transforms/Reassociate/basictest.ll
index ac59320..cad7a5a 100644
--- a/llvm/test/Regression/Transforms/Reassociate/basictest.ll
+++ b/llvm/test/Regression/Transforms/Reassociate/basictest.ll
@@ -1,11 +1,8 @@
 ; With reassociation, constant folding can eliminate the 12 and -12 constants.
 ;
-; RUN: if as < %s | opt -reassociate -constprop -instcombine -die | dis | grep add
-; RUN: then exit 1
-; RUN: else exit 0
-; RUN: fi
+; RUN: as < %s | opt -reassociate -constprop -instcombine -die | dis | not grep add
 
-int "test"(int %arg) {
+int %test(int %arg) {
 	%tmp1 = sub int -12, %arg
 	%tmp2 = add int %tmp1, 12
 	ret int %tmp2