Hi Gerald, The attached patch mention Loongson 3a1000 3a2000 3a3000 2k1000 support in gcc9.
ok for commit?
Index: changes.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-9/changes.html,v retrieving revision 1.30 diff -u -r1.30 changes.html --- changes.html 3 Dec 2018 17:20:20 -0000 1.30 +++ changes.html 31 Dec 2018 10:21:32 -0000 @@ -214,6 +214,44 @@ </li> </ul> +<h3 id="mips">MIPS</h3> +<ul> + <li> + The Loongson <code>loongson-mmi</code> and <code>loongson-ext</code> + extension has now been splited from <code>loongson3a</code>: + <ul> + <li><code>loongson-mmi</code> which contains + the Loongson MultiMedia extension Instructions operations.</li> + <li><code>loongson-ext</code> which contains + the Loongson EXTension instructions.</li> + </ul> + <li> + The Loongson EXTension R2 instructions is now supported. + <ul> + <li><code>loongson-ext2</code> which contains the Loongson EXTension R2 instructions.</li> + </ul> + Use -mxxx or -mno-xxx will enable or disable those extersions. + for example: Using <code>-mloongson-mmi</code>/<code>-mno-loongson-mmi</code> + will enable/disable Loongson MultiMedia Instructions extensions. + <li> + Support has been added for the following processors + (GCC identifiers in parentheses): + <ul> + <li>Loongson 3A1000 (<code>gs464</code>) + which default enable <code>loongson-mmi</code>, <code>loongson-ext</code>.</li> + <li>Loongson 3A2000/3A3000 (<code>gs464e</code>) + which default enable <code>loongson-mmi</code>, <code>loongson-ext</code>, <code>loongson-ext2</code>.</li> + <li>Loongson 2K1000 (<code>gs264e</code>) + which default enable <code>loongson-ext</code>, <code>loongson-ext2</code>, <code>msa</code>.</li> + </ul> + The GCC identifiers can be used + as arguments to the <code>-mcpu</code> or <code>-mtune</code> options, + for example: <code>-mcpu=gs464</code> or + <code>-mtune=gs464e</code> or as arguments to the equivalent target + attributes and pragmas. + </li> +</ul> + <!-- <h3 id="hsa">Heterogeneous Systems Architecture</h3> --> <!-- <h3 id="x86">IA-32/x86-64</h3> -->
