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

llvm-svn: 81257
diff --git a/llvm/test/Transforms/InstCombine/apint-cast-cast-to-and.ll b/llvm/test/Transforms/InstCombine/apint-cast-cast-to-and.ll
index 1e7ac10..ccd0306 100644
--- a/llvm/test/Transforms/InstCombine/apint-cast-cast-to-and.ll
+++ b/llvm/test/Transforms/InstCombine/apint-cast-cast-to-and.ll
@@ -1,4 +1,4 @@
-; RUN: opt %s -instcombine | llvm-dis | not grep i41
+; RUN: opt %s -instcombine -S | not grep i41
 
 define i61 @test1(i61 %X) {
         %Y = trunc i61 %X to i41 ;; Turn i61o an AND