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Minor grammar and word usage fix to 'returned' parameter attribute section of LangRef

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184479 91177308-0d34-0410-b5e6-96231b3b80d8
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Stephen Lin 2013-06-20 21:55:10 +00:00
parent b0bdcb5f8a
commit 8592fba155
1 changed files with 7 additions and 8 deletions
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docs/LangRef.rst
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@ -733,14 +733,13 @@ Currently, only the following parameter attributes are defined:
attribute for return values and can only be applied to one parameter. attribute for return values and can only be applied to one parameter.
``returned`` ``returned``
This indicates that the value of the function always returns the value This indicates that the function always returns the argument as its return
of the parameter as its return value. This is an optimization hint to value. This is an optimization hint to the code generator when generating
the code generator when generating the caller, allowing tail call the caller, allowing tail call optimization and omission of register saves
optimization and omission of register saves and restores in some cases; and restores in some cases; it is not checked or enforced when generating
it is not checked or enforced when generating the callee. The parameter the callee. The parameter and the function return type must be valid
and the function return type must be valid operands for the operands for the :ref:`bitcast instruction <i_bitcast>`. This is not a
:ref:`bitcast instruction <i_bitcast>`. This is not a valid attribute for valid attribute for return values and can only be applied to one parameter.
return values and can only be applied to one parameter.
.. _gc: .. _gc: