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/LoopSimplify/single-backedge.ll b/test/Transforms/LoopSimplify/single-backedge.ll
index a965fb4..f9567f1 100644
--- a/test/Transforms/LoopSimplify/single-backedge.ll
+++ b/test/Transforms/LoopSimplify/single-backedge.ll
@@ -2,7 +2,7 @@
 ; for all loops.  This allows the -indvars pass to recognize the %IV 
 ; induction variable in this testcase.
 
-; RUN: opt %s -indvars -S | grep indvar
+; RUN: opt < %s -indvars -S | grep indvar
 
 define i32 @test(i1 %C) {
 ; <label>:0