Hi Dhruv,
> On 21 Mar 2025, at 11:11, Dhruv Chawla <dhr...@nvidia.com> wrote:
>
> This adds support for the NVIDIA Olympus core to the AArch64 backend. The
> initial patch does not add any special tuning decisions, and those may come
> later.
>
> Bootstrapped and tested on aarch64-none-linux-gnu.
>
Thanks, given the time it takes for GCC releases to propagate through the Linux
distro releases it makes sense
to have -mcpu support early on to set the baseline support, especially since
the patch is not very invasive.
I’ve pushed this to trunk as 1aa49fe0b18 after doing a quick bootstrap and
smoke test on aarch64-none-linux-gnu.
Kyrill
> gcc/ChangeLog:
>
> * config/aarch64/aarch64-cores.def (olympus): New entry.
> * config/aarch64/aarch64-tune.md: Regenerate.
> * doc/invoke.texi (AArch64 Options): Document the above.
>
> Signed-off-by: Dhruv Chawla <dhr...@nvidia.com>
> ---
> gcc/config/aarch64/aarch64-cores.def | 3 +++
> gcc/config/aarch64/aarch64-tune.md | 2 +-
> gcc/doc/invoke.texi | 2 +-
> 3 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/gcc/config/aarch64/aarch64-cores.def
> b/gcc/config/aarch64/aarch64-cores.def
> index 5ac81332b67..0e22d72976e 100644
> --- a/gcc/config/aarch64/aarch64-cores.def
> +++ b/gcc/config/aarch64/aarch64-cores.def
> @@ -207,6 +207,9 @@ AARCH64_CORE("neoverse-v3ae", neoversev3ae, cortexa57,
> V9_2A, (SVE2_BITPERM, RNG
> AARCH64_CORE("demeter", demeter, cortexa57, V9A, (I8MM, BF16, SVE2_BITPERM,
> RNG, MEMTAG, PROFILE), neoversev2, 0x41, 0xd4f, -1)
> +/* NVIDIA ('N') cores. */
> +AARCH64_CORE("olympus", olympus, cortexa57, V9_2A, (SVE2_BITPERM, RNG, LS64,
> MEMTAG, PROFILE, FAMINMAX, FP8DOT2, LUT, SVE2_AES, SVE2_SHA3, SVE2_SM4),
> neoversev3, 0x4e, 0x10, -1)
> +
> /* Generic Architecture Processors. */
> AARCH64_CORE("generic", generic, cortexa53, V8A, (), generic, 0x0, 0x0, -1)
> AARCH64_CORE("generic-armv8-a", generic_armv8_a, cortexa53, V8A, (),
> generic_armv8_a, 0x0, 0x0, -1)
> diff --git a/gcc/config/aarch64/aarch64-tune.md
> b/gcc/config/aarch64/aarch64-tune.md
> index 54c65cbf68d..56a914f12b9 100644
> --- a/gcc/config/aarch64/aarch64-tune.md
> +++ b/gcc/config/aarch64/aarch64-tune.md
> @@ -1,5 +1,5 @@
> ;; -*- buffer-read-only: t -*-
> ;; Generated automatically by gentune.sh from aarch64-cores.def
> (define_attr "tune"
> -
> "cortexa34,cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88,thunderxt88p1,octeontx,octeontxt81,octeontxt83,thunderxt81,thunderxt83,ampere1,ampere1a,ampere1b,emag,xgene1,falkor,qdf24xx,exynosm1,phecda,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa76,cortexa76ae,cortexa77,cortexa78,cortexa78ae,cortexa78c,cortexa65,cortexa65ae,cortexx1,cortexx1c,neoversen1,ares,neoversee1,octeontx2,octeontx2t98,octeontx2t96,octeontx2t93,octeontx2f95,octeontx2f95n,octeontx2f95mm,a64fx,fujitsu_monaka,tsv110,thunderx3t110,neoversev1,zeus,neoverse512tvb,saphira,oryon1,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55,cortexa76cortexa55,cortexr82,cortexr82ae,cortexa510,cortexa520,cortexa520ae,cortexa710,cortexa715,cortexa720,cortexa720ae,cortexa725,cortexx2,cortexx3,cortexx4,cortexx925,neoversen2,cobalt100,neoversen3,neoversev2,grace,neoversev3,neoversev3ae,demeter,generic,generic_armv8_a,generic_armv9_a"
> +
> "cortexa34,cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88,thunderxt88p1,octeontx,octeontxt81,octeontxt83,thunderxt81,thunderxt83,ampere1,ampere1a,ampere1b,emag,xgene1,falkor,qdf24xx,exynosm1,phecda,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa76,cortexa76ae,cortexa77,cortexa78,cortexa78ae,cortexa78c,cortexa65,cortexa65ae,cortexx1,cortexx1c,neoversen1,ares,neoversee1,octeontx2,octeontx2t98,octeontx2t96,octeontx2t93,octeontx2f95,octeontx2f95n,octeontx2f95mm,a64fx,fujitsu_monaka,tsv110,thunderx3t110,neoversev1,zeus,neoverse512tvb,saphira,oryon1,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55,cortexa76cortexa55,cortexr82,cortexr82ae,cortexa510,cortexa520,cortexa520ae,cortexa710,cortexa715,cortexa720,cortexa720ae,cortexa725,cortexx2,cortexx3,cortexx4,cortexx925,neoversen2,cobalt100,neoversen3,neoversev2,grace,neoversev3,neoversev3ae,demeter,olympus,generic,generic_armv8_a,generic_armv9_a"
> (const (symbol_ref "((enum attr_tune) aarch64_tune)")))
> diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> index 1819bcdcdfb..ca320db6f80 100644
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -21745,7 +21745,7 @@ performance of the code. Permissible values for this
> option are:
> @samp{oryon-1},
> @samp{neoverse-512tvb}, @samp{neoverse-e1}, @samp{neoverse-n1},
> @samp{neoverse-n2}, @samp{neoverse-v1}, @samp{neoverse-v2}, @samp{grace},
> -@samp{neoverse-v3}, @samp{neoverse-v3ae}, @samp{neoverse-n3},
> +@samp{neoverse-v3}, @samp{neoverse-v3ae}, @samp{neoverse-n3}, @samp{olympus},
> @samp{cortex-a725}, @samp{cortex-x925},
> @samp{qdf24xx}, @samp{saphira}, @samp{phecda}, @samp{xgene1}, @samp{vulcan},
> @samp{octeontx}, @samp{octeontx81}, @samp{octeontx83},
> --
> 2.44.0
> <0001-aarch64-Add-support-for-mcpu-olympus.patch>
