; This test shows a few canonicalizations made by deadargelim
-; RUN: opt %s -deadargelim -S > %t
+; RUN: opt < %s -deadargelim -S > %t
; This test should remove {} and replace it with void
; RUN: cat %t | grep {define internal void @test}
; This test shouls replace the {i32} return value with just i32