Change these tests to feed the assembly files to opt directly, instead
of using llvm-as, now that opt supports this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/SimplifyCFG/branch-phi-thread.ll b/test/Transforms/SimplifyCFG/branch-phi-thread.ll
index c536b6c..5288f7c 100644
--- a/test/Transforms/SimplifyCFG/branch-phi-thread.ll
+++ b/test/Transforms/SimplifyCFG/branch-phi-thread.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | opt -simplifycfg -adce | llvm-dis | \
+; RUN: opt %s -simplifycfg -adce | llvm-dis | \
 ; RUN:   not grep {call void @f1}
 ; END.