Index: htdocs/gcc-8/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-8/changes.html,v
retrieving revision 1.26
diff -u -r1.26 changes.html
--- htdocs/gcc-8/changes.html	11 Jan 2018 09:31:53 -0000	1.26
+++ htdocs/gcc-8/changes.html	11 Jan 2018 15:47:15 -0000
@@ -147,7 +147,51 @@
 
 <h3 id="aarch64">AArch64</h3>
 <ul>
-  <li></li>
+  <li>
+    The Armv8.4-A architecture is now supported.  It can be used by
+    specifying the <code>-march=armv8.4-a</code> option.
+  </li>
+  <li>
+    The Dot Product instructions are now supported as an optional extension to the
+    Armv8.2-A architecture and newer and are mandatory on Armv8.4-A.  The extension can be used by
+    specifying the <code>+dotprod</code> architecture extension.  E.g. <code>-march=armv8.2-a+dotprod</code>.
+  </li>
+  <li>
+    The Armv8-A <code>+crypto</code> extension has now been split into two extensions for finer grained control:
+    <ul>
+       <li><code>+aes</code> which contains the Armv8-A AES crytographic instructions.</li>
+       <li><code>+sha2</code> which contains the Armv8-A SHA2 and SHA1 cryptographic instructions.</li>
+    </ul>
+    Using <code>+crypto<code> will now enable these two extensions.
+  </li>
+  <li>
+    New Armv8.4-A FP16 Floating Point Multiplication Variant instructions have been added.  These instructions are
+    mandatory in Armv8.4-A but available as an optional extension to Armv8.2-A and Armv8.3-A.  The new extension
+    can be used by specifying the <code>+fp16fml</code> architectural extension on Armv8.2-A and Armv8.3-A. On Armv8.4-A
+    the instructions can be enabled by specifying <code>+fp16</code>.
+  </li>
+  <li>
+    New cryptographic instructions have been added as optional extensions to Armv8.2-A and newer.  These instructions can
+    be enabled with:
+    <ul>
+      <li><code>+sha3</code> New SHA3 and SHA2 instructions from Armv8.4-A.  This implies <code>+sha2</code>.
+      <li><code>+sm4</code> New SM3 and SM4 instructions from Armv8.4-A.
+    </ul>
+ </li>
+  <li>
+       Support has been added for the following processors
+       (GCC identifiers in parentheses):
+       <ul>
+         <li>Arm Cortex-A75 (<code>cortex-a75</code>).</li>
+	 <li>Arm Cortex-A55 (<code>cortex-a55</code>).</li>
+	 <li>Arm Cortex-A55/Cortex-A75 DynamIQ big.LITTLE (<code>cortex-a75.cortex-a55</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=cortex-a75</code> or
+       <code>-mtune=thunderx2t99p1</code> or as arguments to the equivalent target
+       attributes and pragmas.
+  </li>
 </ul>
 
 <h3 id="arm">ARM</h3>
@@ -169,14 +213,58 @@
     removed in a future release.
   </li>
   <li>
-    The default link behavior for ARMv6 and ARMv7-R targets has been
+    The default link behavior for Armv6 and Armv7-R targets has been
     changed to produce BE8 format when generating big-endian images.  A new
     flag <code>-mbe32</code> can be used to force the linker to produce
     legacy BE32 format images.  There is no change of behavior for
-    ARMv6-m and other ARMv7 or later targets: these already defaulted
+    Armv6-M and other Armv7 or later targets: these already defaulted
     to BE8 format.  This change brings GCC into alignment with other
     compilers for the ARM architecture.
   </li>
+  <li>
+    The Armv8-R architecture is now supported.  It can be used by specifying the
+    <code>-march=armv8-r</code> option.
+  </li>
+  <li>
+    The Armv8.3-A architecture is now supported.  It can be used by
+    specifying the <code>-march=armv8.3-a</code> option.
+  </li>
+  <li>
+    The Armv8.4-A architecture is now supported.  It can be used by
+    specifying the <code>-march=armv8.4-a</code> option.
+  </li>
+  <li>
+     The Dot Product instructions are now supported as an optional extension to the
+     Armv8.2-A architecture and newer and are mandatory on Armv8.4-A.  The extension can be used by
+     specifying the <code>+dotprod</code> architecture extension.  E.g. <code>-march=armv8.2-a+dotprod</code>.
+  </li>
+
+  <li>
+    Support for setting extensions and architectures using the GCC target pragma and attribute has been added.
+    It can be used by specifying <code>#pragma GCC target ("arch=...")</code>, <code>#pragma GCC target ("+extension")</code>,
+    <code>__attribute__((target("arch=...")))</code> or <code>__attribute__((target("+extension")))</code>.
+  </li>
+  <li>
+    New Armv8.4-A FP16 Floating Point Multiplication Variant instructions have been added.  These instructions are
+    mandatory in Armv8.4-A but available as an optional extension to Armv8.2-A and Armv8.3-A.  The new extension
+    can be used by specifying the <code>+fp16fml</code> architectural extension on Armv8.2-A and Armv8.3-A. On Armv8.4-A
+    the instructions can be enabled by specifying <code>+fp16</code>.
+  </li>
+  <li>
+       Support has been added for the following processors
+       (GCC identifiers in parentheses):
+       <ul>
+	 <li>Arm Cortex-A75 (<code>cortex-a75</code>).</li>
+	 <li>Arm Cortex-A55 (<code>cortex-a55</code>).</li>
+	 <li>Arm Cortex-A55/Cortex-A75 DynamIQ big.LITTLE (<code>cortex-a75.cortex-a55</code>).</li>
+	 <li>Arm Cortex-R52 for Armv8-R (<code>cortex-r52</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=cortex-a75</code> or
+       <code>-mtune=xgene1</code> or as arguments to the equivalent target
+       attributes and pragmas.
+  </li>
 </ul>
 
 <h3 id="avr">AVR</h3>

