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Document noredzone and noimplicitfloat function attributes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73246 91177308-0d34-0410-b5e6-96231b3b80d8
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Devang Patel 2009-06-12 19:45:19 +00:00
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@ -1091,19 +1091,27 @@ stack before the local variables that's checked upon return from the function to
see if it has been overwritten. A heuristic is used to determine if a function
needs stack protectors or not.
<p>If a function that has an <tt>ssp</tt> attribute is inlined into a function
<br><br>If a function that has an <tt>ssp</tt> attribute is inlined into a function
that doesn't have an <tt>ssp</tt> attribute, then the resulting function will
have an <tt>ssp</tt> attribute.</p></dd>
have an <tt>ssp</tt> attribute.</dd>
<dt><tt>sspreq</tt></dt>
<dd>This attribute indicates that the function should <em>always</em> emit a
stack smashing protector. This overrides the <tt><a href="#ssp">ssp</a></tt>
function attribute.
<p>If a function that has an <tt>sspreq</tt> attribute is inlined into a
If a function that has an <tt>sspreq</tt> attribute is inlined into a
function that doesn't have an <tt>sspreq</tt> attribute or which has
an <tt>ssp</tt> attribute, then the resulting function will have
an <tt>sspreq</tt> attribute.</p></dd>
an <tt>sspreq</tt> attribute.</dd>
<dt><tt>noredzone</tt></dt>
<dd>This attribute indicates that the code generator should not enforce red zone
mandated by target specific ABI.</dd>
<dt><tt>noimplicitfloat</tt></dt>
<dd>This attributes disables implicit floating point instructions.</dd>
</dl>
</div>