aarch64: Enable Cortex-A720 CPU

This patch adds support for the Cortex-A720 CPU to binutils.

bfd/ChangeLog:

	* cpu-aarch64.c: Add Cortex-A720.

gas/ChangeLog:

	* NEWS: Update docs.
	* config/tc-aarch64.c: Add Cortex-A720.
	* doc/c-aarch64.texi: Update docs.
	* testsuite/gas/aarch64/cpu-cortex-a720.d: New test.

bfd/cpu-aarch64.c

@@ -73,7 +73,8 @@ processors[] =
   { bfd_mach_aarch64,	  "cortex-a65"	    },
   { bfd_mach_aarch64,	  "cortex-a65ae"    },
   { bfd_mach_aarch64,	  "cortex-a76ae"    },
-  { bfd_mach_aarch64,	  "cortex-a77"	    }
+  { bfd_mach_aarch64,	  "cortex-a77"	    },
+  { bfd_mach_aarch64,	  "cortex-a720"	    }
 };
 
 static bool

gas/NEWS

@@ -12,6 +12,8 @@
 
 * Add support for Cortex-A520 for AArch64.
 
+* Add support for Cortex-A720 for AArch64.
+
 Changes in 2.41:
 
 * Add support for Intel FRED instructions.

gas/config/tc-aarch64.c

@@ -10237,6 +10237,11 @@ static const struct aarch64_cpu_option_table aarch64_cpus[] = {
                   | AARCH64_FEATURE_MEMTAG
                   | AARCH64_FEATURE_SVE2_BITPERM),
    "Cortex-A710"},
+  {"cortex-a720", AARCH64_FEATURE (AARCH64_ARCH_V9_2,
+                  AARCH64_FEATURE_MEMTAG
+		  | AARCH64_FEATURE_PROFILE
+                  | AARCH64_FEATURE_SVE2_BITPERM),
+   "Cortex-A720"},
   {"ares", AARCH64_FEATURE (AARCH64_ARCH_V8_2,
 				  AARCH64_FEATURE_RCPC | AARCH64_FEATURE_F16
 				  | AARCH64_FEATURE_DOTPROD

gas/doc/c-aarch64.texi

@@ -74,6 +74,7 @@ on the target processor.  The following processor names are recognized:
 @code{cortex-a510},
 @code{cortex-a520},
 @code{cortex-a710},
+@code{cortex-a720},
 @code{ares},
 @code{exynos-m1},
 @code{falkor},

gas/testsuite/gas/aarch64/cpu-cortex-a720.d

@@ -0,0 +1,6 @@
+# name: Assemble and dump for cortex-a720 CPU
+# source: nop-asm.s
+# as: -mcpu=cortex-a720
+# objdump: -d -mcortex-a720
+
+#...