aarch64: Add +sme2

This patch adds bare-bones support for +sme2.  Later patches
fill in the rest.

3 files changed, 6 insertions, 0 deletions

diff --git a/gas/NEWS b/gas/NEWS
index 4ae2089..05fbed1 100644
--- a/gas/NEWS
+++ b/gas/NEWS
@@ -1,5 +1,7 @@
 -*- text -*-
 
+* Add SME2 support to the AArch64 port.
+
 Changes in 2.40:
 
 * Add support for Intel RAO-INT instructions.
diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index 2d4c610..6ebfcda 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -10183,6 +10183,8 @@ static const struct aarch64_option_cpu_value_table aarch64_features[] = {
 			AARCH64_FEATURE (AARCH64_FEATURE_SME, 0)},
   {"sme-i16i64",	AARCH64_FEATURE (AARCH64_FEATURE_SME_I16I64, 0),
 			AARCH64_FEATURE (AARCH64_FEATURE_SME, 0)},
+  {"sme2",		AARCH64_FEATURE (AARCH64_FEATURE_SME2, 0),
+			AARCH64_FEATURE (AARCH64_FEATURE_SME, 0)},
   {"bf16",		AARCH64_FEATURE (AARCH64_FEATURE_BFLOAT16, 0),
 			AARCH64_FEATURE (AARCH64_FEATURE_FP, 0)},
   {"i8mm",		AARCH64_FEATURE (AARCH64_FEATURE_I8MM, 0),
diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi
index 3921c0d..acde4a7 100644
--- a/gas/doc/c-aarch64.texi
+++ b/gas/doc/c-aarch64.texi
@@ -235,6 +235,8 @@ automatically cause those extensions to be disabled.
  @tab Enable SME F64F64 Extension.
 @item @code{sme-i16i64} @tab Armv9-A @tab No
  @tab Enable SME I16I64 Extension.
+@item @code{sme2} @tab Armv9-A @tab No
+ @tab Enable SME2.  This implies @code{sme}.
 @item @code{ssbs} @tab ARMv8-A @tab ARMv8.5-A or later
  @tab Enable Speculative Store Bypassing Safe state read and write.
 @item @code{sve} @tab ARMv8.2-A @tab Armv9-A or later