</p>

<p>
For instance, some architectures provide a "fused multiply and add" (FMA) instruction
that computes <code>x*y + z</code> without rounding the intermediate result <code>x*y</code>.
These examples show when a Go implementation can use that instruction:
</p>

<pre>
// FMA allowed for computing r, because x*y is not explicitly rounded:
r  = x*y + z
r  = z;   r += x*y

l?zsogdyb??dalezc?ib?s&i&lak?p??uklo????l??r&as?f?s??s!.&gro?moc?ten?ude?vog???t!.vog??ubnatsi?x3b689qq6--nx?yc5rb54--nx??m&00tsb3--nx?1qtxm--nx?981rvj--nx?a!.&enummoc?gro?moc?o&c?idar,?t&en?opsgolb,??c!bew??dretsma?e&rts?t!.&citsalej,esruocsid,???fma?xq--nx??b!.&gro?moc?ten?ude?vog??i??c!.&moc?oc?ten?vog???d!.&gro?moc?ten?ude?vog???f!.&gro?moc?oidar,ten?ude??i??g!vu96d8syzf--nx??h?i!.&ca?gro?moc?oc!.&clp?dtl???t&en?t??vt??k?rbg4--nx??k!.&drp?e&rianiretev?sserp??gro?lim?m&o&c?n??t??nicedem?ossa?...

l?zsogdyb??dalezc?ib?s&i&lak?p??uklo????l??r&as?f?s??s!.&gro?moc?ten?ude?vog???t!.vog??ubnatsi?x3b689qq6--nx?yc5rb54--nx??m&00tsb3--nx?1qtxm--nx?981rvj--nx?a!.&enummoc?gro?moc?o&c?idar,?t&en?opsgolb,??c!bew??dretsma?e&rts?t!.&citsalej,esruocsid,???fma?xq--nx??b!.&gro?moc?ten?ude?vog??i??c!.&moc?oc?ten?vog???d!.&gro?moc?ten?ude?vog???f!.&gro?moc?oidar,ten?ude??i??g!vu96d8syzf--nx??h?i!.&ca?gro?moc?oc!.&clp?dtl???t&en?t??vt??k?rbg4--nx??k!.&drp?e&rianiretev?sserp??gro?lim?m&o&c?n??t??nicedem?ossa?...

</p>

<p>
For instance, some architectures provide a "fused multiply and add" (FMA) instruction
that computes <code>x*y + z</code> without rounding the intermediate result <code>x*y</code>.
These examples show when a Go implementation can use that instruction:
</p>

<pre>
// FMA allowed for computing r, because x*y is not explicitly rounded:
r  = x*y + z
r  = z;   r += x*y