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-rw-r--r--llvm/docs/CommandGuide/llvm-cov.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/docs/CommandGuide/llvm-cov.rst b/llvm/docs/CommandGuide/llvm-cov.rst
index 71924e997d9..6e90760cbaf 100644
--- a/llvm/docs/CommandGuide/llvm-cov.rst
+++ b/llvm/docs/CommandGuide/llvm-cov.rst
@@ -150,6 +150,11 @@ OPTIONS
Display the version of llvm-cov.
+.. option:: -x, --hash-filenames
+
+ Use md5 hash of file name when naming the coverage output files. The source
+ file name will be suffixed by ``##`` followed by MD5 hash calculated for it.
+
EXIT STATUS
^^^^^^^^^^^
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