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<a name="GIMPLE_005fCALL"></a>
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Next: <a href="GIMPLE_005fCATCH.html#GIMPLE_005fCATCH" accesskey="n" rel="next"><code>GIMPLE_CATCH</code></a>, Previous: <a href="GIMPLE_005fBIND.html#GIMPLE_005fBIND" accesskey="p" rel="prev"><code>GIMPLE_BIND</code></a>, Up: <a href="Tuple-specific-accessors.html#Tuple-specific-accessors" accesskey="u" rel="up">Tuple specific accessors</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="GIMPLE_005fCALL-1"></a>
<h4 class="subsection">12.8.4 <code>GIMPLE_CALL</code></h4>
<a name="index-GIMPLE_005fCALL"></a>

<dl>
<dt><a name="index-_002agimple_005fbuild_005fcall"></a>GIMPLE function: <em>gcall</em> <strong>*gimple_build_call</strong> <em>(tree fn, unsigned nargs, ...)</em></dt>
<dd><p>Build a <code>GIMPLE_CALL</code> statement to function <code>FN</code>.  The argument <code>FN</code>
must be either a <code>FUNCTION_DECL</code> or a gimple call address as
determined by <code>is_gimple_call_addr</code>.  <code>NARGS</code> are the number of
arguments.  The rest of the arguments follow the argument <code>NARGS</code>,
and must be trees that are valid as rvalues in gimple (i.e., each
operand is validated with <code>is_gimple_operand</code>).
</p></dd></dl>


<dl>
<dt><a name="index-_002agimple_005fbuild_005fcall_005ffrom_005ftree"></a>GIMPLE function: <em>gcall</em> <strong>*gimple_build_call_from_tree</strong> <em>(tree call_expr, tree fnptrtype)</em></dt>
<dd><p>Build a <code>GIMPLE_CALL</code> from a <code>CALL_EXPR</code> node.  The arguments
and the function are taken from the expression directly.  The type of the
<code>GIMPLE_CALL</code> is set from the second parameter passed by a caller.
This routine assumes that <code>call_expr</code> is already in GIMPLE form.
That is, its operands are GIMPLE values and the function call needs no further
simplification.  All the call flags in <code>call_expr</code> are copied over
to the new <code>GIMPLE_CALL</code>.
</p></dd></dl>

<dl>
<dt><a name="index-_002agimple_005fbuild_005fcall_005fvec"></a>GIMPLE function: <em>gcall</em> <strong>*gimple_build_call_vec</strong> <em>(tree fn, <code>vec&lt;tree&gt;</code> args)</em></dt>
<dd><p>Identical to <code>gimple_build_call</code> but the arguments are stored in a
<code>vec&lt;tree&gt;</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005flhs"></a>GIMPLE function: <em>tree</em> <strong>gimple_call_lhs</strong> <em>(gimple g)</em></dt>
<dd><p>Return the <code>LHS</code> of call statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005flhs_005fptr"></a>GIMPLE function: <em>tree *</em> <strong>gimple_call_lhs_ptr</strong> <em>(gimple g)</em></dt>
<dd><p>Return a pointer to the <code>LHS</code> of call statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fset_005flhs"></a>GIMPLE function: <em>void</em> <strong>gimple_call_set_lhs</strong> <em>(gimple g, tree lhs)</em></dt>
<dd><p>Set <code>LHS</code> to be the <code>LHS</code> operand of call statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005ffn"></a>GIMPLE function: <em>tree</em> <strong>gimple_call_fn</strong> <em>(gimple g)</em></dt>
<dd><p>Return the tree node representing the function called by call
statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fset_005ffn"></a>GIMPLE function: <em>void</em> <strong>gimple_call_set_fn</strong> <em>(gcall *g, tree fn)</em></dt>
<dd><p>Set <code>FN</code> to be the function called by call statement <code>G</code>.  This has
to be a gimple value specifying the address of the called
function.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005ffndecl"></a>GIMPLE function: <em>tree</em> <strong>gimple_call_fndecl</strong> <em>(gimple g)</em></dt>
<dd><p>If a given <code>GIMPLE_CALL</code>&rsquo;s callee is a <code>FUNCTION_DECL</code>, return it.
Otherwise return <code>NULL</code>.  This function is analogous to
<code>get_callee_fndecl</code> in <code>GENERIC</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fset_005ffndecl"></a>GIMPLE function: <em>tree</em> <strong>gimple_call_set_fndecl</strong> <em>(gimple g, tree fndecl)</em></dt>
<dd><p>Set the called function to <code>FNDECL</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005freturn_005ftype"></a>GIMPLE function: <em>tree</em> <strong>gimple_call_return_type</strong> <em>(const gcall *g)</em></dt>
<dd><p>Return the type returned by call statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fchain"></a>GIMPLE function: <em>tree</em> <strong>gimple_call_chain</strong> <em>(gimple g)</em></dt>
<dd><p>Return the static chain for call statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fset_005fchain"></a>GIMPLE function: <em>void</em> <strong>gimple_call_set_chain</strong> <em>(gcall *g, tree chain)</em></dt>
<dd><p>Set <code>CHAIN</code> to be the static chain for call statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fnum_005fargs"></a>GIMPLE function: <em>unsigned</em> <strong>gimple_call_num_args</strong> <em>(gimple g)</em></dt>
<dd><p>Return the number of arguments used by call statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005farg"></a>GIMPLE function: <em>tree</em> <strong>gimple_call_arg</strong> <em>(gimple g, unsigned index)</em></dt>
<dd><p>Return the argument at position <code>INDEX</code> for call statement <code>G</code>.  The
first argument is 0.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005farg_005fptr"></a>GIMPLE function: <em>tree *</em> <strong>gimple_call_arg_ptr</strong> <em>(gimple g, unsigned index)</em></dt>
<dd><p>Return a pointer to the argument at position <code>INDEX</code> for call
statement <code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fset_005farg"></a>GIMPLE function: <em>void</em> <strong>gimple_call_set_arg</strong> <em>(gimple g, unsigned index, tree arg)</em></dt>
<dd><p>Set <code>ARG</code> to be the argument at position <code>INDEX</code> for call statement
<code>G</code>.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fset_005ftail"></a>GIMPLE function: <em>void</em> <strong>gimple_call_set_tail</strong> <em>(gcall *s)</em></dt>
<dd><p>Mark call statement <code>S</code> as being a tail call (i.e., a call just
before the exit of a function). These calls are candidate for
tail call optimization.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005ftail_005fp"></a>GIMPLE function: <em>bool</em> <strong>gimple_call_tail_p</strong> <em>(gcall *s)</em></dt>
<dd><p>Return true if <code>GIMPLE_CALL</code> <code>S</code> is marked as a tail call.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fnoreturn_005fp"></a>GIMPLE function: <em>bool</em> <strong>gimple_call_noreturn_p</strong> <em>(gimple s)</em></dt>
<dd><p>Return true if <code>S</code> is a noreturn call.
</p></dd></dl>

<dl>
<dt><a name="index-gimple_005fcall_005fcopy_005fskip_005fargs"></a>GIMPLE function: <em>gimple</em> <strong>gimple_call_copy_skip_args</strong> <em>(gcall *stmt, bitmap args_to_skip)</em></dt>
<dd><p>Build a <code>GIMPLE_CALL</code> identical to <code>STMT</code> but skipping the arguments
in the positions marked by the set <code>ARGS_TO_SKIP</code>.
</p></dd></dl>


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