Convert scripts from using explicit control flow to use the new grep-not script

llvm-svn: 6955
diff --git a/llvm/test/Regression/Transforms/InstCombine/load.ll b/llvm/test/Regression/Transforms/InstCombine/load.ll
index 47da1ff..f80e02e 100644
--- a/llvm/test/Regression/Transforms/InstCombine/load.ll
+++ b/llvm/test/Regression/Transforms/InstCombine/load.ll
@@ -1,10 +1,7 @@
 ; This test makes sure that these instructions are properly eliminated.
 ;
 
-; RUN: if as < %s | opt -instcombine | dis | grep load
-; RUN: then exit 1
-; RUN: else exit 0
-; RUN: fi
+; RUN: as < %s | opt -instcombine | dis | grep-not load
 
 %X = constant int 42
 %Y = constant [2 x { int, float }] [ { int, float } { int 12, float 1.0 },