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-rw-r--r--llvm/docs/CommandGuide/lit.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/docs/CommandGuide/lit.rst b/llvm/docs/CommandGuide/lit.rst
index fbe1a9ab184..11337696eb5 100644
--- a/llvm/docs/CommandGuide/lit.rst
+++ b/llvm/docs/CommandGuide/lit.rst
@@ -85,6 +85,8 @@ OUTPUT OPTIONS
Echo all commands to stdout, as they are being executed.
This can be valuable for debugging test failures, as the last echoed command
will be the one which has failed.
+ To help you find the source RUN line, :program:`lit` inserts a no-op ``:``
+ command with argument ``'RUN: at line N'`` before each command pipeline.
This option implies ``--verbose``.
.. option:: -a, --show-all
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