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-rw-r--r--docs/LangRef.rst8
1 files changed, 7 insertions, 1 deletions
diff --git a/docs/LangRef.rst b/docs/LangRef.rst
index c863090..84680df 100644
--- a/docs/LangRef.rst
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@@ -2537,11 +2537,17 @@ guaranteed to be separate for each loop. The loop-level metadata is prefixed
with ``llvm.loop``.
The loop identifier metadata is implemented using a metadata that refers to
-itself as follows:
+itself to avoid merging it with any other identifier metadata, e.g.,
+during module linkage or function inlining. That is, each loop should refer
+to their own identification metadata even if they reside in separate functions.
+The following example contains loop identifier metadata for two separate loop
+constructs:
.. code-block:: llvm
!0 = metadata !{ metadata !0 }
+ !1 = metadata !{ metadata !1 }
+
'``llvm.loop.parallel``' Metadata
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^