On 27/11/14 08:52, Ramana Radhakrishnan wrote:
On Thu, Nov 13, 2014 at 5:25 PM, Kyrill Tkachov <kyrylo.tkac...@arm.com> wrote:
Hi all,
This patch adds support for the Cortex-A17 processor to the arm backend.
Cortex-A17 is an ARMv7ve core with the same architectural features as the
Cortex-A7, A12 and A15 cores.
The -m{tune, cpu}=cortex-a17 option is added and a pipeline description for
instruction scheduling is provided.
This has given an uplift over -mcpu=cortex-a15 tuning on a number of
benchmarks.
The patch is fairly self-contained with the bulk of the diffstat being the
pipeline description files.
Bootstrapped and tested on arm-none-linux-gnueabihf.
Ok for trunk?
Ok with documentation update in invoke.texi and an entry for changes.html
Hi Ramana,
Thanks for the review. The invoke.texi changes were posted and approved
at https://gcc.gnu.org/ml/gcc-patches/2014-11/msg02683.html
and I'm attaching the proposed changes.html patch.
Kyrill
Ramana
Thanks,
Kyrill
2014-11-13 Kyrylo Tkachov <kyrylo.tkac...@arm.com>
* config/arm/arm.md (generic_sched): Specify cortexa17 in 'no' list.
Include cortex-a17.md.
* config/arm/arm.c (arm_issue_rate): Specify 2 for cortexa17.
* config/arm/arm-cores.def (cortex-a17): New entry.
* config/arm/arm-tables.opt: Regenerate.
* config/arm/arm-tune.md: Regenerate.
* config/arm/bpabi.h (BE8_LINK_SPEC): Specify mcpu=cortex-a17.
* config/arm/cortex-a17.md: New file.
* config/arm/cortex-a17-neon.md: New file.
* config/arm/driver-arm.c (arm_cpu_table): Add entry for cortex-a17.
* config/arm/t-aprofile: Add cortex-a17 entries to MULTILIB_MATCHES.
Index: htdocs/gcc-5/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-5/changes.html,v
retrieving revision 1.43
diff -U 3 -r1.43 changes.html
--- htdocs/gcc-5/changes.html 27 Nov 2014 09:50:04 -0000 1.43
+++ htdocs/gcc-5/changes.html 27 Nov 2014 09:57:19 -0000
@@ -398,6 +398,14 @@
configure option with either of <code>--with-tune</code> or
<code>--with-arch</code>.
</li>
+ <li> Support for the Cortex-A17 processor has been added through the
+ <code>-mcpu=cortex-a17</code> and <code>-mtune=cortex-a17</code> options.
+ </li>
+ <li> Initial big.LITTLE tuning support for the combination of Cortex-A17
+ and Cortex-A7 was added through the <code>-mcpu=cortex-a17.cortex-a7
+ </code> and <code>-mtune=cortex-a17.cortex-a7</code> options.
+ </li>
+
</ul>
<h3 id="x86">IA-32/x86-64</h3>
