Hi,
This patch adds support to the ARM back-end for the Cortex-A35
processor, as recently announced by ARM. The ARM Cortex-A35 provides
full support for the ARMv8-A architecture, including the CRC extension,
with optional Advanced-SIMD and Floating-Point support. We therefore set
feature flags for this CPU to FL_FOR_ARCH8A and FL_CRC32 and FL_LDSCHED,
in the same fashion as Cortex-A53 and Cortex-A57. While the Cortex-A35
has dual issue capabilities, we model it with an issue rate of one, with
the expectation that this will give better schedules when using the
Cortex-A53 pipeline model.
Bootstrapped with --with-tune=cortex-a35 with no issues.
I'm sorry to have this upstream a little late for the close of Stage 1,
I wanted to wait for binutils support to be committed. This happened
on Thursday [1]. If it is OK with the ARM maintainers, I'd like to get
this in to GCC 6.
OK?
Thanks,
James
[1]: https://sourceware.org/ml/binutils-cvs/2015-11/msg00065.html
---
2015-11-16 James Greenhalgh <james.greenhalgh@arm.com>
* config/arm/arm-cores.def (cortex-a35): New.
* config/arm/arm.c (arm_cortex_a35_tune): New.
* config/arm/arm-tables.opt: Regenerate.
* config/arm/arm-tune.md: Regenerate.
* config/arm/bpabi.h (BE8_LINK_SPEC): Add cortex-a35.
* config/arm/t-aprofile: Likewise.
* doc/invoke.texi (-mcpu): Likewise.