[LangRef] Add entry for pcsections Metadata (#133423)
Add an entry for pcsections Metadata that references the PC Sections
Metadata document.
Fixes: https://github.com/llvm/llvm-project/issues/130552
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index cc0a778..806874f 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -8221,6 +8221,14 @@
Clang emits ``kcfi_type`` metadata nodes for address-taken functions with
``-fsanitize=kcfi``.
+'``pcsections``' Metadata
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The ``pcsections`` metadata can be attached to instructions and functions, for
+which addresses, viz. program counters (PCs), are to be emitted in specially
+encoded binary sections. More details can be found in the `PC Sections Metadata
+<PCSectionsMetadata.html>`_ documentation.
+
.. _md_memprof:
'``memprof``' Metadata
