From 25846b50895262d38e1271bb19def833f9a63182 Mon Sep 17 00:00:00 2001 From: Kyrylo Tkachov Date: Wed, 27 Jun 2018 14:33:16 +0000 Subject: [PATCH] [AArch64] Add support for Arm Cortex-A76 The Cortex-A76 is an Armv8.2-A processor with dotproduct and FP16 support. It can be paired with the Cortex-A55 and hence the option -mcpu/-mtune=cortex-a76.cortex-a55 is also introduced. Bootstrapped and tested on aarch64-none-linux-gnu. * config/aarch64/aarch64-cores.def (cortex-a76): New entry. (cortex-a76.cortex-a55): Likewise. * config/aarch64/aarch64-tune.md: Regenerate. * doc/invoke.texi (AArch64 Options): Document cortex-a76 and cortex-a76.cortex-a55. From-SVN: r262186 --- gcc/ChangeLog | 8 ++++++++ gcc/config/aarch64/aarch64-cores.def | 2 ++ gcc/config/aarch64/aarch64-tune.md | 2 +- gcc/doc/invoke.texi | 9 +++++---- 4 files changed, 16 insertions(+), 5 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2d0fd08cb49..c6dc2da7e4c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2018-06-27 Kyrylo Tkachov + + * config/aarch64/aarch64-cores.def (cortex-a76): New entry. + (cortex-a76.cortex-a55): Likewise. + * config/aarch64/aarch64-tune.md: Regenerate. + * doc/invoke.texi (AArch64 Options): Document cortex-a76 and + cortex-a76.cortex-a55. + 2018-06-27 Jeff Law * config/v850/t-v850 (MULTILIB_OPTIONS): Remove 8byte-align. diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def index e64d8314fa9..3d876b8049d 100644 --- a/gcc/config/aarch64/aarch64-cores.def +++ b/gcc/config/aarch64/aarch64-cores.def @@ -85,6 +85,7 @@ AARCH64_CORE("thunderx2t99", thunderx2t99, thunderx2t99, 8_1A, AARCH64_FL_FOR /* ARM ('A') cores. */ AARCH64_CORE("cortex-a55", cortexa55, cortexa53, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa53, 0x41, 0xd05, -1) AARCH64_CORE("cortex-a75", cortexa75, cortexa57, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa73, 0x41, 0xd0a, -1) +AARCH64_CORE("cortex-a76", cortexa76, cortexa57, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa72, 0x41, 0xd0b, -1) /* ARMv8.4-A Architecture Processors. */ @@ -101,5 +102,6 @@ AARCH64_CORE("cortex-a73.cortex-a53", cortexa73cortexa53, cortexa53, 8A, AARCH /* ARM DynamIQ big.LITTLE configurations. */ AARCH64_CORE("cortex-a75.cortex-a55", cortexa75cortexa55, cortexa53, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa73, 0x41, AARCH64_BIG_LITTLE (0xd0a, 0xd05), -1) +AARCH64_CORE("cortex-a76.cortex-a55", cortexa76cortexa55, cortexa53, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa72, 0x41, AARCH64_BIG_LITTLE (0xd0b, 0xd05), -1) #undef AARCH64_CORE diff --git a/gcc/config/aarch64/aarch64-tune.md b/gcc/config/aarch64/aarch64-tune.md index 7b3a7460561..f82222c8f6a 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" - "cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,thunderxt81,thunderxt83,xgene1,falkor,qdf24xx,exynosm1,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,saphira,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55" + "cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,thunderxt81,thunderxt83,xgene1,falkor,qdf24xx,exynosm1,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa76,saphira,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55,cortexa76cortexa55" (const (symbol_ref "((enum attr_tune) aarch64_tune)"))) diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index d48f9b49570..1014022d6bc 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -14665,18 +14665,19 @@ Specify the name of the target processor for which GCC should tune the performance of the code. Permissible values for this option are: @samp{generic}, @samp{cortex-a35}, @samp{cortex-a53}, @samp{cortex-a55}, @samp{cortex-a57}, @samp{cortex-a72}, @samp{cortex-a73}, @samp{cortex-a75}, -@samp{exynos-m1}, @samp{falkor}, @samp{qdf24xx}, @samp{saphira}, -@samp{xgene1}, @samp{vulcan}, @samp{thunderx}, +@samp{cortex-a76}, @samp{exynos-m1}, @samp{falkor}, @samp{qdf24xx}, +@samp{saphira}, @samp{xgene1}, @samp{vulcan}, @samp{thunderx}, @samp{thunderxt88}, @samp{thunderxt88p1}, @samp{thunderxt81}, @samp{thunderxt83}, @samp{thunderx2t99}, @samp{cortex-a57.cortex-a53}, @samp{cortex-a72.cortex-a53}, @samp{cortex-a73.cortex-a35}, @samp{cortex-a73.cortex-a53}, @samp{cortex-a75.cortex-a55}, +@samp{cortex-a76.cortex-a55} @samp{native}. The values @samp{cortex-a57.cortex-a53}, @samp{cortex-a72.cortex-a53}, @samp{cortex-a73.cortex-a35}, @samp{cortex-a73.cortex-a53}, -@samp{cortex-a75.cortex-a55} specify that GCC should tune for a -big.LITTLE system. +@samp{cortex-a75.cortex-a55}, @samp{cortex-a76.cortex-a55} specify that GCC +should tune for a big.LITTLE system. Additionally on native AArch64 GNU/Linux systems the value @samp{native} tunes performance to the host system. This option has no effect -- 2.30.2