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[binutils-gdb] [AArch64][SVE 21/32] Add Zn and Pn registers
- From: Richard Sandiford <rsandifo at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 21 Sep 2016 16:05:26 -0000
- Subject: [binutils-gdb] [AArch64][SVE 21/32] Add Zn and Pn registers
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f11ad6bc0fc44b94c6970115bb6984b497b967e7
commit f11ad6bc0fc44b94c6970115bb6984b497b967e7
Author: Richard Sandiford <richard.sandiford@arm.com>
Date: Wed Sep 21 16:53:54 2016 +0100
[AArch64][SVE 21/32] Add Zn and Pn registers
This patch adds the Zn and Pn registers, and associated fields and
operands.
include/
* opcode/aarch64.h (AARCH64_OPND_CLASS_SVE_REG): New
aarch64_operand_class.
(AARCH64_OPND_CLASS_PRED_REG): Likewise.
(AARCH64_OPND_SVE_Pd, AARCH64_OPND_SVE_Pg3, AARCH64_OPND_SVE_Pg4_5)
(AARCH64_OPND_SVE_Pg4_10, AARCH64_OPND_SVE_Pg4_16)
(AARCH64_OPND_SVE_Pm, AARCH64_OPND_SVE_Pn, AARCH64_OPND_SVE_Pt)
(AARCH64_OPND_SVE_Za_5, AARCH64_OPND_SVE_Za_16, AARCH64_OPND_SVE_Zd)
(AARCH64_OPND_SVE_Zm_5, AARCH64_OPND_SVE_Zm_16, AARCH64_OPND_SVE_Zn)
(AARCH64_OPND_SVE_Zn_INDEX, AARCH64_OPND_SVE_ZnxN)
(AARCH64_OPND_SVE_Zt, AARCH64_OPND_SVE_ZtxN): New aarch64_opnds.
opcodes/
* aarch64-tbl.h (AARCH64_OPERANDS): Add entries for new SVE operands.
* aarch64-opc.h (FLD_SVE_Pd, FLD_SVE_Pg3, FLD_SVE_Pg4_5)
(FLD_SVE_Pg4_10, FLD_SVE_Pg4_16, FLD_SVE_Pm, FLD_SVE_Pn, FLD_SVE_Pt)
(FLD_SVE_Za_5, FLD_SVE_Za_16, FLD_SVE_Zd, FLD_SVE_Zm_5, FLD_SVE_Zm_16)
(FLD_SVE_Zn, FLD_SVE_Zt, FLD_SVE_tzsh): New aarch64_field_kinds.
* aarch64-opc.c (fields): Add corresponding entries here.
(operand_general_constraint_met_p): Check that SVE register lists
have the correct length. Check the ranges of SVE index registers.
Check for cases where p8-p15 are used in 3-bit predicate fields.
(aarch64_print_operand): Handle the new SVE operands.
* aarch64-opc-2.c: Regenerate.
* aarch64-asm.h (ins_sve_index, ins_sve_reglist): New inserters.
* aarch64-asm.c (aarch64_ins_sve_index): New function.
(aarch64_ins_sve_reglist): Likewise.
* aarch64-asm-2.c: Regenerate.
* aarch64-dis.h (ext_sve_index, ext_sve_reglist): New extractors.
* aarch64-dis.c (aarch64_ext_sve_index): New function.
(aarch64_ext_sve_reglist): Likewise.
* aarch64-dis-2.c: Regenerate.
gas/
* config/tc-aarch64.c (NTA_HASVARWIDTH): New macro.
(AARCH64_REG_TYPES): Add ZN and PN.
(get_reg_expected_msg): Handle them.
(parse_vector_type_for_operand): Add a reg_type parameter.
Skip the width for Zn and Pn registers.
(parse_typed_reg): Extend vector handling to Zn and Pn. Update the
call to parse_vector_type_for_operand. Set HASVARTYPE for Zn and Pn,
expecting the width to be 0.
(parse_vector_reg_list): Restrict error about [BHSD]nn operands to
REG_TYPE_VN.
(vectype_to_qualifier): Use S_[BHSD] qualifiers for NTA_HASVARWIDTH.
(parse_operands): Handle the new Zn and Pn operands.
(REGSET16): New macro, split out from...
(REGSET31): ...here.
(reg_names): Add Zn and Pn entries.
Diff:
---
gas/ChangeLog | 18 ++++++
gas/config/tc-aarch64.c | 161 ++++++++++++++++++++++++++++++++++++++---------
include/ChangeLog | 13 ++++
include/opcode/aarch64.h | 21 +++++++
opcodes/ChangeLog | 22 +++++++
opcodes/aarch64-asm-2.c | 20 ++++++
opcodes/aarch64-asm.c | 27 ++++++++
opcodes/aarch64-asm.h | 2 +
opcodes/aarch64-dis-2.c | 20 ++++++
opcodes/aarch64-dis.c | 34 ++++++++++
opcodes/aarch64-dis.h | 2 +
opcodes/aarch64-opc-2.c | 18 ++++++
opcodes/aarch64-opc.c | 93 +++++++++++++++++++++++++++
opcodes/aarch64-opc.h | 16 +++++
opcodes/aarch64-tbl.h | 38 ++++++++++-
15 files changed, 473 insertions(+), 32 deletions(-)
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 425c37a..ac1bb54 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,23 @@
2016-09-21 Richard Sandiford <richard.sandiford@arm.com>
+ * config/tc-aarch64.c (NTA_HASVARWIDTH): New macro.
+ (AARCH64_REG_TYPES): Add ZN and PN.
+ (get_reg_expected_msg): Handle them.
+ (parse_vector_type_for_operand): Add a reg_type parameter.
+ Skip the width for Zn and Pn registers.
+ (parse_typed_reg): Extend vector handling to Zn and Pn. Update the
+ call to parse_vector_type_for_operand. Set HASVARTYPE for Zn and Pn,
+ expecting the width to be 0.
+ (parse_vector_reg_list): Restrict error about [BHSD]nn operands to
+ REG_TYPE_VN.
+ (vectype_to_qualifier): Use S_[BHSD] qualifiers for NTA_HASVARWIDTH.
+ (parse_operands): Handle the new Zn and Pn operands.
+ (REGSET16): New macro, split out from...
+ (REGSET31): ...here.
+ (reg_names): Add Zn and Pn entries.
+
+2016-09-21 Richard Sandiford <richard.sandiford@arm.com>
+
* config/tc-aarch64.c (output_operand_error_record): Handle
AARCH64_OPDE_UNTIED_OPERAND.
diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index 8335230..be88d29 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -87,8 +87,9 @@ enum vector_el_type
};
/* Bits for DEFINED field in vector_type_el. */
-#define NTA_HASTYPE 1
-#define NTA_HASINDEX 2
+#define NTA_HASTYPE 1
+#define NTA_HASINDEX 2
+#define NTA_HASVARWIDTH 4
struct vector_type_el
{
@@ -265,6 +266,8 @@ struct reloc_entry
BASIC_REG_TYPE(FP_Q) /* q[0-31] */ \
BASIC_REG_TYPE(CN) /* c[0-7] */ \
BASIC_REG_TYPE(VN) /* v[0-31] */ \
+ BASIC_REG_TYPE(ZN) /* z[0-31] */ \
+ BASIC_REG_TYPE(PN) /* p[0-15] */ \
/* Typecheck: any 64-bit int reg (inc SP exc XZR). */ \
MULTI_REG_TYPE(R64_SP, REG_TYPE(R_64) | REG_TYPE(SP_64)) \
/* Typecheck: x[0-30], w[0-30] or [xw]zr. */ \
@@ -393,6 +396,12 @@ get_reg_expected_msg (aarch64_reg_type reg_type)
case REG_TYPE_VN: /* any V reg */
msg = N_("vector register expected");
break;
+ case REG_TYPE_ZN:
+ msg = N_("SVE vector register expected");
+ break;
+ case REG_TYPE_PN:
+ msg = N_("SVE predicate register expected");
+ break;
default:
as_fatal (_("invalid register type %d"), reg_type);
}
@@ -724,15 +733,16 @@ aarch64_reg_parse_32_64 (char **ccp, aarch64_opnd_qualifier_t *qualifier)
return reg;
}
-/* Parse the qualifier of a SIMD vector register or a SIMD vector element.
- Fill in *PARSED_TYPE and return TRUE if the parsing succeeds;
- otherwise return FALSE.
+/* Parse the qualifier of a vector register or vector element of type
+ REG_TYPE. Fill in *PARSED_TYPE and return TRUE if the parsing
+ succeeds; otherwise return FALSE.
Accept only one occurrence of:
8b 16b 2h 4h 8h 2s 4s 1d 2d
b h s d q */
static bfd_boolean
-parse_vector_type_for_operand (struct vector_type_el *parsed_type, char **str)
+parse_vector_type_for_operand (aarch64_reg_type reg_type,
+ struct vector_type_el *parsed_type, char **str)
{
char *ptr = *str;
unsigned width;
@@ -742,7 +752,7 @@ parse_vector_type_for_operand (struct vector_type_el *parsed_type, char **str)
/* skip '.' */
ptr++;
- if (!ISDIGIT (*ptr))
+ if (reg_type == REG_TYPE_ZN || reg_type == REG_TYPE_PN || !ISDIGIT (*ptr))
{
width = 0;
goto elt_size;
@@ -849,15 +859,23 @@ parse_typed_reg (char **ccp, aarch64_reg_type type, aarch64_reg_type *rtype,
}
type = reg->type;
- if (type == REG_TYPE_VN && *str == '.')
+ if ((type == REG_TYPE_VN || type == REG_TYPE_ZN || type == REG_TYPE_PN)
+ && *str == '.')
{
- if (!parse_vector_type_for_operand (&parsetype, &str))
+ if (!parse_vector_type_for_operand (type, &parsetype, &str))
return PARSE_FAIL;
/* Register if of the form Vn.[bhsdq]. */
is_typed_vecreg = TRUE;
- if (parsetype.width == 0)
+ if (type == REG_TYPE_ZN || type == REG_TYPE_PN)
+ {
+ /* The width is always variable; we don't allow an integer width
+ to be specified. */
+ gas_assert (parsetype.width == 0);
+ atype.defined |= NTA_HASVARWIDTH | NTA_HASTYPE;
+ }
+ else if (parsetype.width == 0)
/* Expect index. In the new scheme we cannot have
Vn.[bhsdq] represent a scalar. Therefore any
Vn.[bhsdq] should have an index following it.
@@ -1034,7 +1052,7 @@ parse_vector_reg_list (char **ccp, aarch64_reg_type type,
continue;
}
/* reject [bhsd]n */
- if (typeinfo.defined == 0)
+ if (type == REG_TYPE_VN && typeinfo.defined == 0)
{
set_first_syntax_error (_("invalid scalar register in list"));
error = TRUE;
@@ -4639,7 +4657,7 @@ vectype_to_qualifier (const struct vector_type_el *vectype)
gas_assert (vectype->type >= NT_b && vectype->type <= NT_q);
- if (vectype->defined & NTA_HASINDEX)
+ if (vectype->defined & (NTA_HASINDEX | NTA_HASVARWIDTH))
/* Vector element register. */
return AARCH64_OPND_QLF_S_B + vectype->type;
else
@@ -4979,6 +4997,7 @@ parse_operands (char *str, const aarch64_opcode *opcode)
struct vector_type_el vectype;
aarch64_opnd_qualifier_t qualifier;
aarch64_opnd_info *info = &inst.base.operands[i];
+ aarch64_reg_type reg_type;
DEBUG_TRACE ("parse operand %d", i);
@@ -5061,22 +5080,54 @@ parse_operands (char *str, const aarch64_opcode *opcode)
info->qualifier = AARCH64_OPND_QLF_S_B + (rtype - REG_TYPE_FP_B);
break;
+ case AARCH64_OPND_SVE_Pd:
+ case AARCH64_OPND_SVE_Pg3:
+ case AARCH64_OPND_SVE_Pg4_5:
+ case AARCH64_OPND_SVE_Pg4_10:
+ case AARCH64_OPND_SVE_Pg4_16:
+ case AARCH64_OPND_SVE_Pm:
+ case AARCH64_OPND_SVE_Pn:
+ case AARCH64_OPND_SVE_Pt:
+ reg_type = REG_TYPE_PN;
+ goto vector_reg;
+
+ case AARCH64_OPND_SVE_Za_5:
+ case AARCH64_OPND_SVE_Za_16:
+ case AARCH64_OPND_SVE_Zd:
+ case AARCH64_OPND_SVE_Zm_5:
+ case AARCH64_OPND_SVE_Zm_16:
+ case AARCH64_OPND_SVE_Zn:
+ case AARCH64_OPND_SVE_Zt:
+ reg_type = REG_TYPE_ZN;
+ goto vector_reg;
+
case AARCH64_OPND_Vd:
case AARCH64_OPND_Vn:
case AARCH64_OPND_Vm:
- val = aarch64_reg_parse (&str, REG_TYPE_VN, NULL, &vectype);
+ reg_type = REG_TYPE_VN;
+ vector_reg:
+ val = aarch64_reg_parse (&str, reg_type, NULL, &vectype);
if (val == PARSE_FAIL)
{
- first_error (_(get_reg_expected_msg (REG_TYPE_VN)));
+ first_error (_(get_reg_expected_msg (reg_type)));
goto failure;
}
if (vectype.defined & NTA_HASINDEX)
goto failure;
info->reg.regno = val;
- info->qualifier = vectype_to_qualifier (&vectype);
- if (info->qualifier == AARCH64_OPND_QLF_NIL)
- goto failure;
+ if ((reg_type == REG_TYPE_PN || reg_type == REG_TYPE_ZN)
+ && vectype.type == NT_invtype)
+ /* Unqualified Pn and Zn registers are allowed in certain
+ contexts. Rely on F_STRICT qualifier checking to catch
+ invalid uses. */
+ info->qualifier = AARCH64_OPND_QLF_NIL;
+ else
+ {
+ info->qualifier = vectype_to_qualifier (&vectype);
+ if (info->qualifier == AARCH64_OPND_QLF_NIL)
+ goto failure;
+ }
break;
case AARCH64_OPND_VdD1:
@@ -5101,13 +5152,19 @@ parse_operands (char *str, const aarch64_opcode *opcode)
info->qualifier = AARCH64_OPND_QLF_S_D;
break;
+ case AARCH64_OPND_SVE_Zn_INDEX:
+ reg_type = REG_TYPE_ZN;
+ goto vector_reg_index;
+
case AARCH64_OPND_Ed:
case AARCH64_OPND_En:
case AARCH64_OPND_Em:
- val = aarch64_reg_parse (&str, REG_TYPE_VN, NULL, &vectype);
+ reg_type = REG_TYPE_VN;
+ vector_reg_index:
+ val = aarch64_reg_parse (&str, reg_type, NULL, &vectype);
if (val == PARSE_FAIL)
{
- first_error (_(get_reg_expected_msg (REG_TYPE_VN)));
+ first_error (_(get_reg_expected_msg (reg_type)));
goto failure;
}
if (vectype.type == NT_invtype || !(vectype.defined & NTA_HASINDEX))
@@ -5120,20 +5177,43 @@ parse_operands (char *str, const aarch64_opcode *opcode)
goto failure;
break;
+ case AARCH64_OPND_SVE_ZnxN:
+ case AARCH64_OPND_SVE_ZtxN:
+ reg_type = REG_TYPE_ZN;
+ goto vector_reg_list;
+
case AARCH64_OPND_LVn:
case AARCH64_OPND_LVt:
case AARCH64_OPND_LVt_AL:
case AARCH64_OPND_LEt:
- if ((val = parse_vector_reg_list (&str, REG_TYPE_VN,
- &vectype)) == PARSE_FAIL)
- goto failure;
- if (! reg_list_valid_p (val, /* accept_alternate */ 0))
+ reg_type = REG_TYPE_VN;
+ vector_reg_list:
+ if (reg_type == REG_TYPE_ZN
+ && get_opcode_dependent_value (opcode) == 1
+ && *str != '{')
{
- set_fatal_syntax_error (_("invalid register list"));
- goto failure;
+ val = aarch64_reg_parse (&str, reg_type, NULL, &vectype);
+ if (val == PARSE_FAIL)
+ {
+ first_error (_(get_reg_expected_msg (reg_type)));
+ goto failure;
+ }
+ info->reglist.first_regno = val;
+ info->reglist.num_regs = 1;
+ }
+ else
+ {
+ val = parse_vector_reg_list (&str, reg_type, &vectype);
+ if (val == PARSE_FAIL)
+ goto failure;
+ if (! reg_list_valid_p (val, /* accept_alternate */ 0))
+ {
+ set_fatal_syntax_error (_("invalid register list"));
+ goto failure;
+ }
+ info->reglist.first_regno = (val >> 2) & 0x1f;
+ info->reglist.num_regs = (val & 0x3) + 1;
}
- info->reglist.first_regno = (val >> 2) & 0x1f;
- info->reglist.num_regs = (val & 0x3) + 1;
if (operands[i] == AARCH64_OPND_LEt)
{
if (!(vectype.defined & NTA_HASINDEX))
@@ -5141,8 +5221,17 @@ parse_operands (char *str, const aarch64_opcode *opcode)
info->reglist.has_index = 1;
info->reglist.index = vectype.index;
}
- else if (!(vectype.defined & NTA_HASTYPE))
- goto failure;
+ else
+ {
+ if (vectype.defined & NTA_HASINDEX)
+ goto failure;
+ if (!(vectype.defined & NTA_HASTYPE))
+ {
+ if (reg_type == REG_TYPE_ZN)
+ set_fatal_syntax_error (_("missing type suffix"));
+ goto failure;
+ }
+ }
info->qualifier = vectype_to_qualifier (&vectype);
if (info->qualifier == AARCH64_OPND_QLF_NIL)
goto failure;
@@ -6157,11 +6246,13 @@ aarch64_canonicalize_symbol_name (char *name)
#define REGDEF(s,n,t) { #s, n, REG_TYPE_##t, TRUE }
#define REGNUM(p,n,t) REGDEF(p##n, n, t)
-#define REGSET31(p,t) \
+#define REGSET16(p,t) \
REGNUM(p, 0,t), REGNUM(p, 1,t), REGNUM(p, 2,t), REGNUM(p, 3,t), \
REGNUM(p, 4,t), REGNUM(p, 5,t), REGNUM(p, 6,t), REGNUM(p, 7,t), \
REGNUM(p, 8,t), REGNUM(p, 9,t), REGNUM(p,10,t), REGNUM(p,11,t), \
- REGNUM(p,12,t), REGNUM(p,13,t), REGNUM(p,14,t), REGNUM(p,15,t), \
+ REGNUM(p,12,t), REGNUM(p,13,t), REGNUM(p,14,t), REGNUM(p,15,t)
+#define REGSET31(p,t) \
+ REGSET16(p, t), \
REGNUM(p,16,t), REGNUM(p,17,t), REGNUM(p,18,t), REGNUM(p,19,t), \
REGNUM(p,20,t), REGNUM(p,21,t), REGNUM(p,22,t), REGNUM(p,23,t), \
REGNUM(p,24,t), REGNUM(p,25,t), REGNUM(p,26,t), REGNUM(p,27,t), \
@@ -6201,10 +6292,18 @@ static const reg_entry reg_names[] = {
/* FP/SIMD registers. */
REGSET (v, VN), REGSET (V, VN),
+
+ /* SVE vector registers. */
+ REGSET (z, ZN), REGSET (Z, ZN),
+
+ /* SVE predicate registers. */
+ REGSET16 (p, PN), REGSET16 (P, PN)
};
#undef REGDEF
#undef REGNUM
+#undef REGSET16
+#undef REGSET31
#undef REGSET
#define N 1
diff --git a/include/ChangeLog b/include/ChangeLog
index e6c3dbd..53d0ba0 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,5 +1,18 @@
2016-09-21 Richard Sandiford <richard.sandiford@arm.com>
+ * opcode/aarch64.h (AARCH64_OPND_CLASS_SVE_REG): New
+ aarch64_operand_class.
+ (AARCH64_OPND_CLASS_PRED_REG): Likewise.
+ (AARCH64_OPND_SVE_Pd, AARCH64_OPND_SVE_Pg3, AARCH64_OPND_SVE_Pg4_5)
+ (AARCH64_OPND_SVE_Pg4_10, AARCH64_OPND_SVE_Pg4_16)
+ (AARCH64_OPND_SVE_Pm, AARCH64_OPND_SVE_Pn, AARCH64_OPND_SVE_Pt)
+ (AARCH64_OPND_SVE_Za_5, AARCH64_OPND_SVE_Za_16, AARCH64_OPND_SVE_Zd)
+ (AARCH64_OPND_SVE_Zm_5, AARCH64_OPND_SVE_Zm_16, AARCH64_OPND_SVE_Zn)
+ (AARCH64_OPND_SVE_Zn_INDEX, AARCH64_OPND_SVE_ZnxN)
+ (AARCH64_OPND_SVE_Zt, AARCH64_OPND_SVE_ZtxN): New aarch64_opnds.
+
+2016-09-21 Richard Sandiford <richard.sandiford@arm.com>
+
* opcode/aarch64.h (aarch64_opcode): Add a tied_operand field.
(AARCH64_OPDE_UNTIED_OPERAND): New aarch64_operand_error_kind.
diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h
index d39f10d..b0eb617 100644
--- a/include/opcode/aarch64.h
+++ b/include/opcode/aarch64.h
@@ -120,6 +120,8 @@ enum aarch64_operand_class
AARCH64_OPND_CLASS_SISD_REG,
AARCH64_OPND_CLASS_SIMD_REGLIST,
AARCH64_OPND_CLASS_CP_REG,
+ AARCH64_OPND_CLASS_SVE_REG,
+ AARCH64_OPND_CLASS_PRED_REG,
AARCH64_OPND_CLASS_ADDRESS,
AARCH64_OPND_CLASS_IMMEDIATE,
AARCH64_OPND_CLASS_SYSTEM,
@@ -241,6 +243,25 @@ enum aarch64_opnd
AARCH64_OPND_BARRIER_ISB, /* Barrier operand for ISB. */
AARCH64_OPND_PRFOP, /* Prefetch operation. */
AARCH64_OPND_BARRIER_PSB, /* Barrier operand for PSB. */
+
+ AARCH64_OPND_SVE_Pd, /* SVE p0-p15 in Pd. */
+ AARCH64_OPND_SVE_Pg3, /* SVE p0-p7 in Pg. */
+ AARCH64_OPND_SVE_Pg4_5, /* SVE p0-p15 in Pg, bits [8,5]. */
+ AARCH64_OPND_SVE_Pg4_10, /* SVE p0-p15 in Pg, bits [13,10]. */
+ AARCH64_OPND_SVE_Pg4_16, /* SVE p0-p15 in Pg, bits [19,16]. */
+ AARCH64_OPND_SVE_Pm, /* SVE p0-p15 in Pm. */
+ AARCH64_OPND_SVE_Pn, /* SVE p0-p15 in Pn. */
+ AARCH64_OPND_SVE_Pt, /* SVE p0-p15 in Pt. */
+ AARCH64_OPND_SVE_Za_5, /* SVE vector register in Za, bits [9,5]. */
+ AARCH64_OPND_SVE_Za_16, /* SVE vector register in Za, bits [20,16]. */
+ AARCH64_OPND_SVE_Zd, /* SVE vector register in Zd. */
+ AARCH64_OPND_SVE_Zm_5, /* SVE vector register in Zm, bits [9,5]. */
+ AARCH64_OPND_SVE_Zm_16, /* SVE vector register in Zm, bits [20,16]. */
+ AARCH64_OPND_SVE_Zn, /* SVE vector register in Zn. */
+ AARCH64_OPND_SVE_Zn_INDEX, /* Indexed SVE vector register, for DUP. */
+ AARCH64_OPND_SVE_ZnxN, /* SVE vector register list in Zn. */
+ AARCH64_OPND_SVE_Zt, /* SVE vector register in Zt. */
+ AARCH64_OPND_SVE_ZtxN, /* SVE vector register list in Zt. */
};
/* Qualifier constrains an operand. It either specifies a variant of an
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 925ea1e..463837b 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,5 +1,27 @@
2016-09-21 Richard Sandiford <richard.sandiford@arm.com>
+ * aarch64-tbl.h (AARCH64_OPERANDS): Add entries for new SVE operands.
+ * aarch64-opc.h (FLD_SVE_Pd, FLD_SVE_Pg3, FLD_SVE_Pg4_5)
+ (FLD_SVE_Pg4_10, FLD_SVE_Pg4_16, FLD_SVE_Pm, FLD_SVE_Pn, FLD_SVE_Pt)
+ (FLD_SVE_Za_5, FLD_SVE_Za_16, FLD_SVE_Zd, FLD_SVE_Zm_5, FLD_SVE_Zm_16)
+ (FLD_SVE_Zn, FLD_SVE_Zt, FLD_SVE_tzsh): New aarch64_field_kinds.
+ * aarch64-opc.c (fields): Add corresponding entries here.
+ (operand_general_constraint_met_p): Check that SVE register lists
+ have the correct length. Check the ranges of SVE index registers.
+ Check for cases where p8-p15 are used in 3-bit predicate fields.
+ (aarch64_print_operand): Handle the new SVE operands.
+ * aarch64-opc-2.c: Regenerate.
+ * aarch64-asm.h (ins_sve_index, ins_sve_reglist): New inserters.
+ * aarch64-asm.c (aarch64_ins_sve_index): New function.
+ (aarch64_ins_sve_reglist): Likewise.
+ * aarch64-asm-2.c: Regenerate.
+ * aarch64-dis.h (ext_sve_index, ext_sve_reglist): New extractors.
+ * aarch64-dis.c (aarch64_ext_sve_index): New function.
+ (aarch64_ext_sve_reglist): Likewise.
+ * aarch64-dis-2.c: Regenerate.
+
+2016-09-21 Richard Sandiford <richard.sandiford@arm.com>
+
* aarch64-tbl.h (CORE_INSN, __FP_INSN, SIMD_INSN, CRYP_INSN)
(_CRC_INSN, _LSE_INSN, _LOR_INSN, RDMA_INSN, FP16_INSN, SF16_INSN)
(V8_2_INSN, aarch64_opcode_table): Initialize tied_operand field.
diff --git a/opcodes/aarch64-asm-2.c b/opcodes/aarch64-asm-2.c
index 439dd3d..9c797b2 100644
--- a/opcodes/aarch64-asm-2.c
+++ b/opcodes/aarch64-asm-2.c
@@ -480,6 +480,21 @@ aarch64_insert_operand (const aarch64_operand *self,
case 27:
case 35:
case 36:
+ case 89:
+ case 90:
+ case 91:
+ case 92:
+ case 93:
+ case 94:
+ case 95:
+ case 96:
+ case 97:
+ case 98:
+ case 99:
+ case 100:
+ case 101:
+ case 102:
+ case 105:
return aarch64_ins_regno (self, info, code, inst);
case 12:
return aarch64_ins_reg_extended (self, info, code, inst);
@@ -566,6 +581,11 @@ aarch64_insert_operand (const aarch64_operand *self,
return aarch64_ins_prfop (self, info, code, inst);
case 88:
return aarch64_ins_hint (self, info, code, inst);
+ case 103:
+ return aarch64_ins_sve_index (self, info, code, inst);
+ case 104:
+ case 106:
+ return aarch64_ins_sve_reglist (self, info, code, inst);
default: assert (0); abort ();
}
}
diff --git a/opcodes/aarch64-asm.c b/opcodes/aarch64-asm.c
index f291495..c045f9e 100644
--- a/opcodes/aarch64-asm.c
+++ b/opcodes/aarch64-asm.c
@@ -745,6 +745,33 @@ aarch64_ins_reg_shifted (const aarch64_operand *self ATTRIBUTE_UNUSED,
return NULL;
}
+/* Encode Zn[MM], where MM has a 7-bit triangular encoding. The fields
+ array specifies which field to use for Zn. MM is encoded in the
+ concatenation of imm5 and SVE_tszh, with imm5 being the less
+ significant part. */
+const char *
+aarch64_ins_sve_index (const aarch64_operand *self,
+ const aarch64_opnd_info *info, aarch64_insn *code,
+ const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+ unsigned int esize = aarch64_get_qualifier_esize (info->qualifier);
+ insert_field (self->fields[0], code, info->reglane.regno, 0);
+ insert_fields (code, (info->reglane.index * 2 + 1) * esize, 0,
+ 2, FLD_imm5, FLD_SVE_tszh);
+ return NULL;
+}
+
+/* Encode {Zn.<T> - Zm.<T>}. The fields array specifies which field
+ to use for Zn. */
+const char *
+aarch64_ins_sve_reglist (const aarch64_operand *self,
+ const aarch64_opnd_info *info, aarch64_insn *code,
+ const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+ insert_field (self->fields[0], code, info->reglist.first_regno, 0);
+ return NULL;
+}
+
/* Miscellaneous encoding functions. */
/* Encode size[0], i.e. bit 22, for
diff --git a/opcodes/aarch64-asm.h b/opcodes/aarch64-asm.h
index 3211aff..ede366c 100644
--- a/opcodes/aarch64-asm.h
+++ b/opcodes/aarch64-asm.h
@@ -69,6 +69,8 @@ AARCH64_DECL_OPD_INSERTER (ins_hint);
AARCH64_DECL_OPD_INSERTER (ins_prfop);
AARCH64_DECL_OPD_INSERTER (ins_reg_extended);
AARCH64_DECL_OPD_INSERTER (ins_reg_shifted);
+AARCH64_DECL_OPD_INSERTER (ins_sve_index);
+AARCH64_DECL_OPD_INSERTER (ins_sve_reglist);
#undef AARCH64_DECL_OPD_INSERTER
diff --git a/opcodes/aarch64-dis-2.c b/opcodes/aarch64-dis-2.c
index a86a84d..6ea010b 100644
--- a/opcodes/aarch64-dis-2.c
+++ b/opcodes/aarch64-dis-2.c
@@ -10426,6 +10426,21 @@ aarch64_extract_operand (const aarch64_operand *self,
case 27:
case 35:
case 36:
+ case 89:
+ case 90:
+ case 91:
+ case 92:
+ case 93:
+ case 94:
+ case 95:
+ case 96:
+ case 97:
+ case 98:
+ case 99:
+ case 100:
+ case 101:
+ case 102:
+ case 105:
return aarch64_ext_regno (self, info, code, inst);
case 8:
return aarch64_ext_regrt_sysins (self, info, code, inst);
@@ -10519,6 +10534,11 @@ aarch64_extract_operand (const aarch64_operand *self,
return aarch64_ext_prfop (self, info, code, inst);
case 88:
return aarch64_ext_hint (self, info, code, inst);
+ case 103:
+ return aarch64_ext_sve_index (self, info, code, inst);
+ case 104:
+ case 106:
+ return aarch64_ext_sve_reglist (self, info, code, inst);
default: assert (0); abort ();
}
}
diff --git a/opcodes/aarch64-dis.c b/opcodes/aarch64-dis.c
index 4c3b521..ab93234 100644
--- a/opcodes/aarch64-dis.c
+++ b/opcodes/aarch64-dis.c
@@ -1185,6 +1185,40 @@ aarch64_ext_reg_shifted (const aarch64_operand *self ATTRIBUTE_UNUSED,
return 1;
}
+
+/* Decode Zn[MM], where MM has a 7-bit triangular encoding. The fields
+ array specifies which field to use for Zn. MM is encoded in the
+ concatenation of imm5 and SVE_tszh, with imm5 being the less
+ significant part. */
+int
+aarch64_ext_sve_index (const aarch64_operand *self,
+ aarch64_opnd_info *info, aarch64_insn code,
+ const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+ int val;
+
+ info->reglane.regno = extract_field (self->fields[0], code, 0);
+ val = extract_fields (code, 0, 2, FLD_SVE_tszh, FLD_imm5);
+ if ((val & 15) == 0)
+ return 0;
+ while ((val & 1) == 0)
+ val /= 2;
+ info->reglane.index = val / 2;
+ return 1;
+}
+
+/* Decode {Zn.<T> - Zm.<T>}. The fields array specifies which field
+ to use for Zn. The opcode-dependent value specifies the number
+ of registers in the list. */
+int
+aarch64_ext_sve_reglist (const aarch64_operand *self,
+ aarch64_opnd_info *info, aarch64_insn code,
+ const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+ info->reglist.first_regno = extract_field (self->fields[0], code, 0);
+ info->reglist.num_regs = get_opcode_dependent_value (inst->opcode);
+ return 1;
+}
/* Bitfields that are commonly used to encode certain operands' information
may be partially used as part of the base opcode in some instructions.
diff --git a/opcodes/aarch64-dis.h b/opcodes/aarch64-dis.h
index 1f10157..5efb904 100644
--- a/opcodes/aarch64-dis.h
+++ b/opcodes/aarch64-dis.h
@@ -91,6 +91,8 @@ AARCH64_DECL_OPD_EXTRACTOR (ext_hint);
AARCH64_DECL_OPD_EXTRACTOR (ext_prfop);
AARCH64_DECL_OPD_EXTRACTOR (ext_reg_extended);
AARCH64_DECL_OPD_EXTRACTOR (ext_reg_shifted);
+AARCH64_DECL_OPD_EXTRACTOR (ext_sve_index);
+AARCH64_DECL_OPD_EXTRACTOR (ext_sve_reglist);
#undef AARCH64_DECL_OPD_EXTRACTOR
diff --git a/opcodes/aarch64-opc-2.c b/opcodes/aarch64-opc-2.c
index b53bb5c..f8a7079 100644
--- a/opcodes/aarch64-opc-2.c
+++ b/opcodes/aarch64-opc-2.c
@@ -113,6 +113,24 @@ const struct aarch64_operand aarch64_operands[] =
{AARCH64_OPND_CLASS_SYSTEM, "BARRIER_ISB", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "the ISB option name SY or an optional 4-bit unsigned immediate"},
{AARCH64_OPND_CLASS_SYSTEM, "PRFOP", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "a prefetch operation specifier"},
{AARCH64_OPND_CLASS_SYSTEM, "BARRIER_PSB", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "the PSB option name CSYNC"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pd", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pd}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pg3", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pg3}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pg4_5", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pg4_5}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pg4_10", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pg4_10}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pg4_16", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pg4_16}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pm", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pm}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pn", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pn}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_PRED_REG, "SVE_Pt", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Pt}, "an SVE predicate register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Za_5", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Za_5}, "an SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Za_16", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Za_16}, "an SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Zd", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zd}, "an SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Zm_5", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zm_5}, "an SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Zm_16", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zm_16}, "an SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Zn", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zn}, "an SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Zn_INDEX", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zn}, "an indexed SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_ZnxN", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zn}, "a list of SVE vector registers"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_Zt", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zt}, "an SVE vector register"},
+ {AARCH64_OPND_CLASS_SVE_REG, "SVE_ZtxN", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_SVE_Zt}, "a list of SVE vector registers"},
{AARCH64_OPND_CLASS_NIL, "", 0, {0}, "DUMMY"},
};
diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c
index 30501fc..56a0169 100644
--- a/opcodes/aarch64-opc.c
+++ b/opcodes/aarch64-opc.c
@@ -199,6 +199,22 @@ const aarch64_field fields[] =
{ 31, 1 }, /* b5: in the test bit and branch instructions. */
{ 19, 5 }, /* b40: in the test bit and branch instructions. */
{ 10, 6 }, /* scale: in the fixed-point scalar to fp converting inst. */
+ { 0, 4 }, /* SVE_Pd: p0-p15, bits [3,0]. */
+ { 10, 3 }, /* SVE_Pg3: p0-p7, bits [12,10]. */
+ { 5, 4 }, /* SVE_Pg4_5: p0-p15, bits [8,5]. */
+ { 10, 4 }, /* SVE_Pg4_10: p0-p15, bits [13,10]. */
+ { 16, 4 }, /* SVE_Pg4_16: p0-p15, bits [19,16]. */
+ { 16, 4 }, /* SVE_Pm: p0-p15, bits [19,16]. */
+ { 5, 4 }, /* SVE_Pn: p0-p15, bits [8,5]. */
+ { 0, 4 }, /* SVE_Pt: p0-p15, bits [3,0]. */
+ { 5, 5 }, /* SVE_Za_5: SVE vector register, bits [9,5]. */
+ { 16, 5 }, /* SVE_Za_16: SVE vector register, bits [20,16]. */
+ { 0, 5 }, /* SVE_Zd: SVE vector register. bits [4,0]. */
+ { 5, 5 }, /* SVE_Zm_5: SVE vector register, bits [9,5]. */
+ { 16, 5 }, /* SVE_Zm_16: SVE vector register, bits [20,16]. */
+ { 5, 5 }, /* SVE_Zn: SVE vector register, bits [9,5]. */
+ { 0, 5 }, /* SVE_Zt: SVE vector register, bits [4,0]. */
+ { 22, 2 }, /* SVE_tszh: triangular size select high, bits [23,22]. */
};
enum aarch64_operand_class
@@ -1332,6 +1348,43 @@ operand_general_constraint_met_p (const aarch64_opnd_info *opnds, int idx,
}
break;
+ case AARCH64_OPND_CLASS_SVE_REG:
+ switch (type)
+ {
+ case AARCH64_OPND_SVE_Zn_INDEX:
+ size = aarch64_get_qualifier_esize (opnd->qualifier);
+ if (!value_in_range_p (opnd->reglane.index, 0, 64 / size - 1))
+ {
+ set_elem_idx_out_of_range_error (mismatch_detail, idx,
+ 0, 64 / size - 1);
+ return 0;
+ }
+ break;
+
+ case AARCH64_OPND_SVE_ZnxN:
+ case AARCH64_OPND_SVE_ZtxN:
+ if (opnd->reglist.num_regs != get_opcode_dependent_value (opcode))
+ {
+ set_other_error (mismatch_detail, idx,
+ _("invalid register list"));
+ return 0;
+ }
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ case AARCH64_OPND_CLASS_PRED_REG:
+ if (opnd->reg.regno >= 8
+ && get_operand_fields_width (get_operand_from_code (type)) == 3)
+ {
+ set_other_error (mismatch_detail, idx, _("p0-p7 expected"));
+ return 0;
+ }
+ break;
+
case AARCH64_OPND_CLASS_COND:
if (type == AARCH64_OPND_COND1
&& (opnds[idx].cond->value & 0xe) == 0xe)
@@ -2560,6 +2613,46 @@ aarch64_print_operand (char *buf, size_t size, bfd_vma pc,
print_register_list (buf, size, opnd, "v");
break;
+ case AARCH64_OPND_SVE_Pd:
+ case AARCH64_OPND_SVE_Pg3:
+ case AARCH64_OPND_SVE_Pg4_5:
+ case AARCH64_OPND_SVE_Pg4_10:
+ case AARCH64_OPND_SVE_Pg4_16:
+ case AARCH64_OPND_SVE_Pm:
+ case AARCH64_OPND_SVE_Pn:
+ case AARCH64_OPND_SVE_Pt:
+ if (opnd->qualifier == AARCH64_OPND_QLF_NIL)
+ snprintf (buf, size, "p%d", opnd->reg.regno);
+ else
+ snprintf (buf, size, "p%d.%s", opnd->reg.regno,
+ aarch64_get_qualifier_name (opnd->qualifier));
+ break;
+
+ case AARCH64_OPND_SVE_Za_5:
+ case AARCH64_OPND_SVE_Za_16:
+ case AARCH64_OPND_SVE_Zd:
+ case AARCH64_OPND_SVE_Zm_5:
+ case AARCH64_OPND_SVE_Zm_16:
+ case AARCH64_OPND_SVE_Zn:
+ case AARCH64_OPND_SVE_Zt:
+ if (opnd->qualifier == AARCH64_OPND_QLF_NIL)
+ snprintf (buf, size, "z%d", opnd->reg.regno);
+ else
+ snprintf (buf, size, "z%d.%s", opnd->reg.regno,
+ aarch64_get_qualifier_name (opnd->qualifier));
+ break;
+
+ case AARCH64_OPND_SVE_ZnxN:
+ case AARCH64_OPND_SVE_ZtxN:
+ print_register_list (buf, size, opnd, "z");
+ break;
+
+ case AARCH64_OPND_SVE_Zn_INDEX:
+ snprintf (buf, size, "z%d.%s[%" PRIi64 "]", opnd->reglane.regno,
+ aarch64_get_qualifier_name (opnd->qualifier),
+ opnd->reglane.index);
+ break;
+
case AARCH64_OPND_Cn:
case AARCH64_OPND_Cm:
snprintf (buf, size, "C%d", opnd->reg.regno);
diff --git a/opcodes/aarch64-opc.h b/opcodes/aarch64-opc.h
index 08494c6..cc3dbef 100644
--- a/opcodes/aarch64-opc.h
+++ b/opcodes/aarch64-opc.h
@@ -91,6 +91,22 @@ enum aarch64_field_kind
FLD_b5,
FLD_b40,
FLD_scale,
+ FLD_SVE_Pd,
+ FLD_SVE_Pg3,
+ FLD_SVE_Pg4_5,
+ FLD_SVE_Pg4_10,
+ FLD_SVE_Pg4_16,
+ FLD_SVE_Pm,
+ FLD_SVE_Pn,
+ FLD_SVE_Pt,
+ FLD_SVE_Za_5,
+ FLD_SVE_Za_16,
+ FLD_SVE_Zd,
+ FLD_SVE_Zm_5,
+ FLD_SVE_Zm_16,
+ FLD_SVE_Zn,
+ FLD_SVE_Zt,
+ FLD_SVE_tszh,
};
/* Field description. */
diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index 8f1c9b2..9dbe0c0 100644
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -2819,4 +2819,40 @@ struct aarch64_opcode aarch64_opcode_table[] =
Y(SYSTEM, prfop, "PRFOP", 0, F(), \
"a prefetch operation specifier") \
Y (SYSTEM, hint, "BARRIER_PSB", 0, F (), \
- "the PSB option name CSYNC")
+ "the PSB option name CSYNC") \
+ Y(PRED_REG, regno, "SVE_Pd", 0, F(FLD_SVE_Pd), \
+ "an SVE predicate register") \
+ Y(PRED_REG, regno, "SVE_Pg3", 0, F(FLD_SVE_Pg3), \
+ "an SVE predicate register") \
+ Y(PRED_REG, regno, "SVE_Pg4_5", 0, F(FLD_SVE_Pg4_5), \
+ "an SVE predicate register") \
+ Y(PRED_REG, regno, "SVE_Pg4_10", 0, F(FLD_SVE_Pg4_10), \
+ "an SVE predicate register") \
+ Y(PRED_REG, regno, "SVE_Pg4_16", 0, F(FLD_SVE_Pg4_16), \
+ "an SVE predicate register") \
+ Y(PRED_REG, regno, "SVE_Pm", 0, F(FLD_SVE_Pm), \
+ "an SVE predicate register") \
+ Y(PRED_REG, regno, "SVE_Pn", 0, F(FLD_SVE_Pn), \
+ "an SVE predicate register") \
+ Y(PRED_REG, regno, "SVE_Pt", 0, F(FLD_SVE_Pt), \
+ "an SVE predicate register") \
+ Y(SVE_REG, regno, "SVE_Za_5", 0, F(FLD_SVE_Za_5), \
+ "an SVE vector register") \
+ Y(SVE_REG, regno, "SVE_Za_16", 0, F(FLD_SVE_Za_16), \
+ "an SVE vector register") \
+ Y(SVE_REG, regno, "SVE_Zd", 0, F(FLD_SVE_Zd), \
+ "an SVE vector register") \
+ Y(SVE_REG, regno, "SVE_Zm_5", 0, F(FLD_SVE_Zm_5), \
+ "an SVE vector register") \
+ Y(SVE_REG, regno, "SVE_Zm_16", 0, F(FLD_SVE_Zm_16), \
+ "an SVE vector register") \
+ Y(SVE_REG, regno, "SVE_Zn", 0, F(FLD_SVE_Zn), \
+ "an SVE vector register") \
+ Y(SVE_REG, sve_index, "SVE_Zn_INDEX", 0, F(FLD_SVE_Zn), \
+ "an indexed SVE vector register") \
+ Y(SVE_REG, sve_reglist, "SVE_ZnxN", 0, F(FLD_SVE_Zn), \
+ "a list of SVE vector registers") \
+ Y(SVE_REG, regno, "SVE_Zt", 0, F(FLD_SVE_Zt), \
+ "an SVE vector register") \
+ Y(SVE_REG, sve_reglist, "SVE_ZtxN", 0, F(FLD_SVE_Zt), \
+ "a list of SVE vector registers")