arm: Add support for Neoverse N2 CPU

This adds support for Arm's Neoverse N2 CPU to AArch32 binutils. The
Neoverse N2 CPU builds AArch32 at EL0 and therefore needs support in the
AArch32 assembler.

gas/ChangeLog:

2020-09-24  Alex Coplan  <alex.coplan@arm.com>

	* config/tc-arm.c (arm_cpus): Add Neoverse N2.
	* doc/c-arm.texi: Document -mcpu=neoverse-n2.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 02e63007ca6d384092f88fd4aa85c028910ae16c..30e4e34b551327e69fb768358e98c352cfd1fefb 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2020-09-24  Alex Coplan  <alex.coplan@arm.com>
+
+       * config/tc-arm.c (arm_cpus): Add Neoverse N2.
+       * doc/c-arm.texi: Document -mcpu=neoverse-n2.
+
 2020-09-24  Lili Cui  <lili.cui@intel.com>
 
        * NEWS: Add TDX.

diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 32feaa1ca094d4bf92dc710840b3996d9a43ceda..fce3ad36e0a399445149ce4ff43f013234a81e12 100644 (file)
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -31594,6 +31594,11 @@ static const struct arm_cpu_option_table arm_cpus[] =
   ARM_CPU_OPT ("neoverse-n1",    "Neoverse N1",               ARM_ARCH_V8_2A,
               ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
               FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
+  ARM_CPU_OPT ("neoverse-n2",   "Neoverse N2",        ARM_ARCH_V8_5A,
+              ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST
+                                   | ARM_EXT2_BF16
+                                   | ARM_EXT2_I8MM),
+              FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_4),
   /* ??? XSCALE is really an architecture.  */
   ARM_CPU_OPT ("xscale",         NULL,                ARM_ARCH_XSCALE,
               ARM_ARCH_NONE,

diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi
index 91803605775418bcc795e163f42b0beaec880967..39e24e71af09fd3e72d404e13dfc743ce590c09a 100644 (file)
--- a/gas/doc/c-arm.texi
+++ b/gas/doc/c-arm.texi
@@ -151,6 +151,7 @@ recognized:
 @code{marvell-pj4},
 @code{marvell-whitney},
 @code{neoverse-n1},
+@code{neoverse-n2},
 @code{xgene1},
 @code{xgene2},
 @code{ep9312} (ARM920 with Cirrus Maverick coprocessor),