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[LLVM] Doc sret only works with void returns #112167

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Oct 14, 2024
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[LLVM] Doc sret only works with void returns #112167

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6 changes: 4 additions & 2 deletions llvm/docs/LangRef.rst
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Expand Up @@ -1309,12 +1309,14 @@ Currently, only the following parameter attributes are defined:
structure that is the return value of the function in the source
program. This pointer must be guaranteed by the caller to be valid:
loads and stores to the structure may be assumed by the callee not
to trap and to be properly aligned. This is not a valid attribute
for return values.
to trap and to be properly aligned.

The sret type argument specifies the in memory type, which must be
the same as the pointee type of the argument.

A function that accepts an ``sret`` argument must return ``void``.
A return value may not be ``sret``.

.. _attr_elementtype:

``elementtype(<ty>)``
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