[PATCH 01/16] [binutils][aarch64] SVE2 feature extension flags.

[Matthew Malcomson <Matthew.Malcomson@arm.com>]

Include all feature flag macros.

The "sve2" extension that enables the core sve2 instructions.
This also enables the sve extension, since sve is a requirement of sve2.

Extra optional sve2 features are the bitperm, sm4, aes, and sha3 extensions.
These are all given extra feature flags, "bitperm", "sve2-sm4",
"sve2-aes", and "sve2-sha3" respectively.
The sm4, aes, and sha3 extensions are explicitly marked as sve2
extensions to distinguish them from the corresponding NEON extensions.

Rather than continue extending the current feature flag numbers, I used
some bits that have been skipped.

gas/ChangeLog:

2019-04-02  Matthew Malcomson  <matthew.malcomson@arm.com>

	* config/tc-aarch64.c: Add command line architecture feature flags
	"sve2", "sve2-sm4", "sve2-aes", "sve2-sha3", "bitperm".
	* doc/c-aarch64.texi: Document new architecture feature flags.

include/ChangeLog:

2019-04-02  Matthew Malcomson  <matthew.malcomson@arm.com>

	* opcode/aarch64.h (AARCH64_FEATURE_SVE2
	AARCH64_FEATURE_SVE2_AES, AARCH64_FEATURE_SVE2_BITPERM,
	AARCH64_FEATURE_SVE2_SM4, AARCH64_FEATURE_SVE2_SHA3): New
	feature macros.

opcodes/ChangeLog:

2019-04-02  Matthew Malcomson  <matthew.malcomson@arm.com>

	* aarch64-tbl.h
	(aarch64_feature_sve2, aarch64_feature_sve2aes,
	aarch64_feature_sve2sha3, aarch64_feature_sve2sm4,
	aarch64_feature_sve2bitperm): New feature sets.
	(SVE2, SVE2_AES, SVE2_SHA3, SVE2_SM4, SVE2_BITPERM): New macros
	for feature set addresses.
	(SVE2_INSN, SVE2_INSNC, SVE2AES_INSN, SVE2SHA3_INSN,
	SVE2SM4_INSN, SVE2SM4_INSNC, SVE2BITPERM_INSN): New macros.
---
 gas/config/tc-aarch64.c  | 13 +++++++++++++
 gas/doc/c-aarch64.texi   | 10 ++++++++++
 include/opcode/aarch64.h |  6 ++++++
 opcodes/aarch64-tbl.h    | 36 ++++++++++++++++++++++++++++++++++++
 4 files changed, 65 insertions(+)

diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index d04e9a1..f8d5b56 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -8866,6 +8866,19 @@ static const struct aarch64_option_cpu_value_table aarch64_features[] = {
 			AARCH64_ARCH_NONE},
   {"memtag",		AARCH64_FEATURE (AARCH64_FEATURE_MEMTAG, 0),
 			AARCH64_ARCH_NONE},
+  {"sve2",		AARCH64_FEATURE (AARCH64_FEATURE_SVE2, 0),
+			AARCH64_FEATURE (AARCH64_FEATURE_SVE, 0)},
+  {"sve2-sm4",		AARCH64_FEATURE (AARCH64_FEATURE_SVE2_SM4, 0),
+			AARCH64_FEATURE (AARCH64_FEATURE_SVE2
+					 | AARCH64_FEATURE_SM4, 0)},
+  {"sve2-aes",		AARCH64_FEATURE (AARCH64_FEATURE_SVE2_AES, 0),
+			AARCH64_FEATURE (AARCH64_FEATURE_SVE2
+					 | AARCH64_FEATURE_AES, 0)},
+  {"sve2-sha3",		AARCH64_FEATURE (AARCH64_FEATURE_SVE2_SHA3, 0),
+			AARCH64_FEATURE (AARCH64_FEATURE_SVE2
+					 | AARCH64_FEATURE_SHA3, 0)},
+  {"bitperm",		AARCH64_FEATURE (AARCH64_FEATURE_SVE2_BITPERM, 0),
+			AARCH64_FEATURE (AARCH64_FEATURE_SVE2, 0)},
   {NULL,		AARCH64_ARCH_NONE, AARCH64_ARCH_NONE},
 };
 
diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi
index 445fb2f..0f80852 100644
--- a/gas/doc/c-aarch64.texi
+++ b/gas/doc/c-aarch64.texi
@@ -194,6 +194,16 @@ automatically cause those extensions to be disabled.
  @tab Enable Speculative Store Bypassing Safe state read and write.
 @item @code{memtag} @tab ARMv8.5-A @tab No
  @tab Enable ARMv8.5-A Memory Tagging Extensions.
+@item @code{sve2} @tab ARMv8-A @tab No
+ @tab Enable the SVE2 Extension.
+@item @code{bitperm} @tab ARMv8-A @tab No
+ @tab Enable SVE2 BITPERM Extension.
+@item @code{sve2-sm4} @tab ARMv8-A @tab No
+ @tab Enable SVE2 SM4 Extension.
+@item @code{sve2-aes} @tab ARMv8-A @tab No
+ @tab Enable SVE2 AES Extension.
+@item @code{sve2-sha3} @tab ARMv8-A @tab No
+ @tab Enable SVE2 SHA3 Extension.
 @end multitable
 
 @node AArch64 Syntax
diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h
index 0c0234a..ecd57cb 100644
--- a/include/opcode/aarch64.h
+++ b/include/opcode/aarch64.h
@@ -87,6 +87,12 @@ typedef uint32_t aarch64_insn;
 /* Memory Tagging Extension.  */
 #define AARCH64_FEATURE_MEMTAG		0x1000000000000ULL
 
+/* SVE2 instructions.  */
+#define AARCH64_FEATURE_SVE2		0x000000010
+#define AARCH64_FEATURE_SVE2_AES		0x000000080
+#define AARCH64_FEATURE_SVE2_BITPERM	0x000000100
+#define AARCH64_FEATURE_SVE2_SM4		0x000000200
+#define AARCH64_FEATURE_SVE2_SHA3	0x000000400
 
 /* Architectures are the sum of the base and extensions.  */
 #define AARCH64_ARCH_V8		AARCH64_FEATURE (AARCH64_FEATURE_V8, \
diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index e0c3903..07b6d62 100644
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -2197,6 +2197,16 @@ static const aarch64_feature_set aarch64_feature_bti =
   AARCH64_FEATURE (AARCH64_FEATURE_BTI, 0);
 static const aarch64_feature_set aarch64_feature_memtag =
   AARCH64_FEATURE (AARCH64_FEATURE_V8_5 | AARCH64_FEATURE_MEMTAG, 0);
+static const aarch64_feature_set aarch64_feature_sve2 =
+  AARCH64_FEATURE (AARCH64_FEATURE_SVE2, 0);
+static const aarch64_feature_set aarch64_feature_sve2aes =
+  AARCH64_FEATURE (AARCH64_FEATURE_SVE2 | AARCH64_FEATURE_SVE2_AES, 0);
+static const aarch64_feature_set aarch64_feature_sve2sha3 =
+  AARCH64_FEATURE (AARCH64_FEATURE_SVE2 | AARCH64_FEATURE_SVE2_SHA3, 0);
+static const aarch64_feature_set aarch64_feature_sve2sm4 =
+  AARCH64_FEATURE (AARCH64_FEATURE_SVE2 | AARCH64_FEATURE_SVE2_SM4, 0);
+static const aarch64_feature_set aarch64_feature_sve2bitperm =
+  AARCH64_FEATURE (AARCH64_FEATURE_SVE2 | AARCH64_FEATURE_SVE2_BITPERM, 0);
 
 
 #define CORE		&aarch64_feature_v8
@@ -2232,6 +2242,11 @@ static const aarch64_feature_set aarch64_feature_memtag =
 #define PREDRES		&aarch64_feature_predres
 #define BTI		&aarch64_feature_bti
 #define MEMTAG		&aarch64_feature_memtag
+#define SVE2		&aarch64_feature_sve2
+#define SVE2_AES		&aarch64_feature_sve2aes
+#define SVE2_SHA3	&aarch64_feature_sve2sha3
+#define SVE2_SM4		&aarch64_feature_sve2sm4
+#define SVE2_BITPERM	&aarch64_feature_sve2bitperm
 
 #define CORE_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS) \
   { NAME, OPCODE, MASK, CLASS, OP, CORE, OPS, QUALS, FLAGS, 0, 0, NULL }
@@ -2299,6 +2314,27 @@ static const aarch64_feature_set aarch64_feature_memtag =
   { NAME, OPCODE, MASK, CLASS, 0, BTI, OPS, QUALS, FLAGS, 0, 0, NULL }
 #define MEMTAG_INSN(NAME,OPCODE,MASK,CLASS,OPS,QUALS,FLAGS) \
   { NAME, OPCODE, MASK, CLASS, 0, MEMTAG, OPS, QUALS, FLAGS, 0, 0, NULL }
+#define SVE2_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS,TIED) \
+  { NAME, OPCODE, MASK, CLASS, OP, SVE2, OPS, QUALS, \
+    FLAGS | F_STRICT, 0, TIED, NULL }
+#define SVE2_INSNC(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS,CONSTRAINTS,TIED) \
+  { NAME, OPCODE, MASK, CLASS, OP, SVE2, OPS, QUALS, \
+    FLAGS | F_STRICT, CONSTRAINTS, TIED, NULL }
+#define SVE2AES_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS,TIED) \
+  { NAME, OPCODE, MASK, CLASS, OP, SVE2_AES, OPS, QUALS, \
+    FLAGS | F_STRICT, 0, TIED, NULL }
+#define SVE2SHA3_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS,TIED) \
+  { NAME, OPCODE, MASK, CLASS, OP, SVE2_SHA3, OPS, QUALS, \
+    FLAGS | F_STRICT, 0, TIED, NULL }
+#define SVE2SM4_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS,TIED) \
+  { NAME, OPCODE, MASK, CLASS, OP, SVE2_SM4, OPS, QUALS, \
+    FLAGS | F_STRICT, 0, TIED, NULL }
+#define SVE2SM4_INSNC(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS,CONSTRAINTS,TIED) \
+  { NAME, OPCODE, MASK, CLASS, OP, SVE2_SM4, OPS, QUALS, \
+    FLAGS | F_STRICT, CONSTRAINTS, TIED, NULL }
+#define SVE2BITPERM_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS,TIED) \
+  { NAME, OPCODE, MASK, CLASS, OP, SVE2_BITPERM, OPS, QUALS, \
+    FLAGS | F_STRICT, 0, TIED, NULL }
 
 struct aarch64_opcode aarch64_opcode_table[] =
 {
-- 
2.7.4