Use opt -S instead of piping bitcode output through llvm-dis.

llvm-svn: 81257
diff --git a/llvm/test/Transforms/SimplifyCFG/branch-phi-thread.ll b/llvm/test/Transforms/SimplifyCFG/branch-phi-thread.ll
index 5288f7cf..1d926d5 100644
--- a/llvm/test/Transforms/SimplifyCFG/branch-phi-thread.ll
+++ b/llvm/test/Transforms/SimplifyCFG/branch-phi-thread.ll
@@ -1,4 +1,4 @@
-; RUN: opt %s -simplifycfg -adce | llvm-dis | \
+; RUN: opt %s -simplifycfg -adce -S | \
 ; RUN:   not grep {call void @f1}
 ; END.