Hi Kyrill, > > Hi Tamar, > > On 16/01/18 16:56, Tamar Christina wrote: > > Th 01/16/2018 16:36, James Greenhalgh wrote: > >> On Tue, Jan 16, 2018 at 02:21:30PM +0000, Tamar Christina wrote: > >>> Hi Kyrill, > >>> > >>>> xgene1 was added a few releases ago, better to use one of the new > additions from the above list. > >>>> For example -mtune=cortex-r52. > >>> Thanks, I have updated the patch. I'll wait for an ok from an AArch64 > maintainer and a Docs maintainer. > >> OK. But you have the same issue in the AArch64 part. > > Thanks, I've updated the patch, I'll wait for a bit for a doc reviewer > > if I don't hear anything I'll assume the patch is OK. > > Gerald has confirmed a few times in the past that port maintainers can > approve target-specific changes to the web pages, and there are words to > that effect at: > https://gcc.gnu.org/svnwrite.html . > So I'd recommend you commit your patch once you've got approval for > aarch64 and arm. > Unless there's some specific part of the patch you'd like the docs maintainer > to give you feedback on...
Ah, thanks! I'll commit the patch then. > Thanks again for working on this. > Kyrill > > > > > Thanks, > > Tamar > >> James > >> > >>> 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 16 Jan 2018 14:12:57 -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=cortex-r52</code> or as arguments to the > equivalent target > >>> + attributes and pragmas. > >>> + </li> > >>> </ul> > >>> > >>> <h3 id="avr">AVR</h3> > >>>