Merge commit '4ed05312a155' from llvm.org/main into next

git apple-llvm automerger · git apple-llvm automerger · commit 8340d78cb0d4 · 2021-09-24T08:57:15.000+05:30
diff --git a/llvm/docs/CommandGuide/opt.rst b/llvm/docs/CommandGuide/opt.rst
@@ -104,6 +104,10 @@ OPTIONS
 
      opt -load=plugin.so -help
 
+.. option:: -print-passes
+
+ Print all available passes and exit.
+
 EXIT STATUS
 -----------
 
