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