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<a name="GIMPLE-API"></a>
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<h3 class="section">25.1 GIMPLE API</h3>
<p><a name="index-GIMPLE-API-5112"></a>
<div class="defun">
— GIMPLE function: tree <b>gimple_simplify</b> (<var>enum tree_code, tree, tree, gimple_seq *, tree </var>(<var>*</var>)(<var>tree</var>))<var><a name="index-gimple_005fsimplify-5113"></a></var><br>
— GIMPLE function: tree <b>gimple_simplify</b> (<var>enum tree_code, tree, tree, tree, gimple_seq *, tree </var>(<var>*</var>)(<var>tree</var>))<var><a name="index-gimple_005fsimplify-5114"></a></var><br>
— GIMPLE function: tree <b>gimple_simplify</b> (<var>enum tree_code, tree, tree, tree, tree, gimple_seq *, tree </var>(<var>*</var>)(<var>tree</var>))<var><a name="index-gimple_005fsimplify-5115"></a></var><br>
— GIMPLE function: tree <b>gimple_simplify</b> (<var>enum built_in_function, tree, tree, gimple_seq *, tree </var>(<var>*</var>)(<var>tree</var>))<var><a name="index-gimple_005fsimplify-5116"></a></var><br>
— GIMPLE function: tree <b>gimple_simplify</b> (<var>enum built_in_function, tree, tree, tree, gimple_seq *, tree </var>(<var>*</var>)(<var>tree</var>))<var><a name="index-gimple_005fsimplify-5117"></a></var><br>
— GIMPLE function: tree <b>gimple_simplify</b> (<var>enum built_in_function, tree, tree, tree, gimple_seq *, tree </var>(<var>*</var>)(<var>tree</var>))<var><a name="index-gimple_005fsimplify-5118"></a></var><br>
<blockquote><p>The main GIMPLE API entry to the expression simplifications mimicing
that of the GENERIC fold_{unary,binary,ternary} functions.
</p></blockquote></div>
<p>thus providing n-ary overloads for operation or function. The
additional arguments are a gimple_seq where built statements are
inserted on (if <code>NULL</code> then simplifications requiring new statements
are not performed) and a valueization hook that can be used to
tie simplifications to a SSA lattice.
<p>In addition to those APIs <code>fold_stmt</code> is overloaded with
a valueization hook:
<div class="defun">
— bool: fold_stmt <b>(</b><var>gimple_stmt_iterator *, tree </var>(<var>*</var>)(<var>tree</var>))<var>;<a name="index-g_t_0028-5119"></a></var><br>
</div>
<p>Ontop of these a <code>fold_buildN</code>-like API for GIMPLE is introduced:
<div class="defun">
— GIMPLE function: tree <b>gimple_build</b> (<var>gimple_seq *, location_t, enum tree_code, tree, tree, tree </var>(<var>*valueize</var>) (<var>tree</var>)<var> = NULL</var>)<var>;<a name="index-gimple_005fbuild-5120"></a></var><br>
— GIMPLE function: tree <b>gimple_build</b> (<var>gimple_seq *, location_t, enum tree_code, tree, tree, tree, tree </var>(<var>*valueize</var>) (<var>tree</var>)<var> = NULL</var>)<var>;<a name="index-gimple_005fbuild-5121"></a></var><br>
— GIMPLE function: tree <b>gimple_build</b> (<var>gimple_seq *, location_t, enum tree_code, tree, tree, tree, tree, tree </var>(<var>*valueize</var>) (<var>tree</var>)<var> = NULL</var>)<var>;<a name="index-gimple_005fbuild-5122"></a></var><br>
— GIMPLE function: tree <b>gimple_build</b> (<var>gimple_seq *, location_t, enum built_in_function, tree, tree, tree </var>(<var>*valueize</var>) (<var>tree</var>)<var> = NULL</var>)<var>;<a name="index-gimple_005fbuild-5123"></a></var><br>
— GIMPLE function: tree <b>gimple_build</b> (<var>gimple_seq *, location_t, enum built_in_function, tree, tree, tree, tree </var>(<var>*valueize</var>) (<var>tree</var>)<var> = NULL</var>)<var>;<a name="index-gimple_005fbuild-5124"></a></var><br>
— GIMPLE function: tree <b>gimple_convert</b> (<var>gimple_seq *, location_t, tree, tree</var>)<var>;<a name="index-gimple_005fconvert-5125"></a></var><br>
</div>
<p>which is supposed to replace <code>force_gimple_operand (fold_buildN (...), ...)</code>
and calls to <code>fold_convert</code>. Overloads without the <code>location_t</code>
argument exist. Built statements are inserted on the provided sequence
and simplification is performed using the optional valueization hook.
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