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-rw-r--r--llvm/test/tools/llvm-strings/stdin-filename.test4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-strings/stdin-filename.test b/llvm/test/tools/llvm-strings/stdin-filename.test
index 9c87e5c45d8..7ba4e90a39a 100644
--- a/llvm/test/tools/llvm-strings/stdin-filename.test
+++ b/llvm/test/tools/llvm-strings/stdin-filename.test
@@ -1,3 +1,7 @@
+## Show that --print-file-name works when the input is standard input.
+
RUN: echo abcd | llvm-strings -f - | FileCheck %s
+RUN: echo abcd | llvm-strings -f | FileCheck %s
RUN: echo abcd | llvm-strings --print-file-name - | FileCheck %s
+RUN: echo abcd | llvm-strings --print-file-name | FileCheck %s
CHECK: {standard input}: abcd
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