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+;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
+;; RUN: wasm-opt < %s - -S -o - | filecheck %s
+
+;; Test that file `-` is interpreted as stdin and stdout.
+
+(module
+ ;; CHECK: (func $foo
+ ;; CHECK-NEXT: (nop)
+ ;; CHECK-NEXT: )
+ (func $foo
+ (nop)
+ )
+)