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[LangRef] allow omitting va_end #203087

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folkertdev merged 4 commits into from
Jun 15, 2026
+13 −3
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[LangRef] allow omitting va_end #203087

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[LangRef] allow omitting `va_end`
folkertdev Jun 10, 2026
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add notes about
folkertdev Jun 10, 2026
963b62a
update va_copy description
folkertdev Jun 12, 2026
ca4b6cc
fix typo
folkertdev Jun 15, 2026
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9 changes: 6 additions & 3 deletions llvm/docs/LangRef.rst
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Expand Up @@ -14631,10 +14631,13 @@ Semantics:

The '``llvm.va_end``' intrinsic works just like the ``va_end`` macro
available in C. In a target-dependent way, it destroys the ``va_list``
element to which the argument points. Calls to
element to which the argument points. Calls to ``llvm.va_end`` can be
omitted when they are a no-op for the given target. ``llvm.va_end``
is a no-op for all currently supported targets.

When used, calls to ``llvm.va_end`` must be matched exactly with calls to
:ref:`llvm.va_start <int_va_start>` and
:ref:`llvm.va_copy <int_va_copy>` must be matched exactly with calls to
``llvm.va_end``.
:ref:`llvm.va_copy <int_va_copy>`.

.. _int_va_copy:

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