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<h4 class="subsection">17.9.15 Miscellaneous register hooks</h4>
<p><a name="index-miscellaneous-register-hooks-4325"></a>
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— Target Hook: bool <b>TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS</b><var><a name="index-TARGET_005fCALL_005fFUSAGE_005fCONTAINS_005fNON_005fCALLEE_005fCLOBBERS-4326"></a></var><br>
<blockquote><p>Set to true if each call that binds to a local definition explicitly
clobbers or sets all non-fixed registers modified by performing the call.
That is, by the call pattern itself, or by code that might be inserted by the
linker (e.g. stubs, veneers, branch islands), but not including those
modifiable by the callee. The affected registers may be mentioned explicitly
in the call pattern, or included as clobbers in CALL_INSN_FUNCTION_USAGE.
The default version of this hook is set to false. The purpose of this hook
is to enable the fipa-ra optimization.
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