Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll b/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll
index 7174968..20f2c2b 100644
--- a/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll
+++ b/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll
@@ -1,4 +1,4 @@
-; RUN: opt %s -loop-unswitch -stats -disable-output |& grep "1 loop-unswitch - Number of branches unswitched" | count 1
+; RUN: opt < %s -loop-unswitch -stats -disable-output |& grep "1 loop-unswitch - Number of branches unswitched" | count 1
 ; PR 3170
 define i32 @a(i32 %x, i32 %y) nounwind {
 entry: