[AArch64][SVE 26/32] Add SVE MUL VL addressing modes

This patch adds support for addresses of the form:

       [<base>, #<offset>, MUL VL]

This involves adding a new AARCH64_MOD_MUL_VL modifier, which is
why I split it out from the other addressing modes.

For LD2, LD3 and LD4, the offset must be a multiple of the structure
size, so for LD3 the possible values are 0, 3, 6, ....  The patch
therefore extends value_aligned_p to handle non-power-of-2 alignments.

include/
	* opcode/aarch64.h (AARCH64_OPND_SVE_ADDR_RI_S4xVL): New aarch64_opnd.
	(AARCH64_OPND_SVE_ADDR_RI_S4x2xVL, AARCH64_OPND_SVE_ADDR_RI_S4x3xVL)
	(AARCH64_OPND_SVE_ADDR_RI_S4x4xVL, AARCH64_OPND_SVE_ADDR_RI_S6xVL)
	(AARCH64_OPND_SVE_ADDR_RI_S9xVL): Likewise.
	(AARCH64_MOD_MUL_VL): New aarch64_modifier_kind.

opcodes/
	* aarch64-tbl.h (AARCH64_OPERANDS): Add entries for new MUL VL
	operands.
	* aarch64-opc.c (aarch64_operand_modifiers): Initialize
	the AARCH64_MOD_MUL_VL entry.
	(value_aligned_p): Cope with non-power-of-two alignments.
	(operand_general_constraint_met_p): Handle the new MUL VL addresses.
	(print_immediate_offset_address): Likewise.
	(aarch64_print_operand): Likewise.
	* aarch64-opc-2.c: Regenerate.
	* aarch64-asm.h (ins_sve_addr_ri_s4xvl, ins_sve_addr_ri_s6xvl)
	(ins_sve_addr_ri_s9xvl): New inserters.
	* aarch64-asm.c (aarch64_ins_sve_addr_ri_s4xvl): New function.
	(aarch64_ins_sve_addr_ri_s6xvl): Likewise.
	(aarch64_ins_sve_addr_ri_s9xvl): Likewise.
	* aarch64-asm-2.c: Regenerate.
	* aarch64-dis.h (ext_sve_addr_ri_s4xvl, ext_sve_addr_ri_s6xvl)
	(ext_sve_addr_ri_s9xvl): New extractors.
	* aarch64-dis.c (aarch64_ext_sve_addr_reg_mul_vl): New function.
	(aarch64_ext_sve_addr_ri_s4xvl): Likewise.
	(aarch64_ext_sve_addr_ri_s6xvl): Likewise.
	(aarch64_ext_sve_addr_ri_s9xvl): Likewise.
	* aarch64-dis-2.c: Regenerate.

gas/
	* config/tc-aarch64.c (SHIFTED_NONE, SHIFTED_MUL_VL): New
	parse_shift_modes.
	(parse_shift): Handle SHIFTED_MUL_VL.
	(parse_address_main): Add an imm_shift_mode parameter.
	(parse_address, parse_sve_address): Update accordingly.
	(parse_operands): Handle MUL VL addressing modes.

10 files changed, 290 insertions, 38 deletions

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 2cedfb9..de052a9 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,5 +1,30 @@
 2016-09-21  Richard Sandiford  <richard.sandiford@arm.com>
 
+	* aarch64-tbl.h (AARCH64_OPERANDS): Add entries for new MUL VL
+	operands.
+	* aarch64-opc.c (aarch64_operand_modifiers): Initialize
+	the AARCH64_MOD_MUL_VL entry.
+	(value_aligned_p): Cope with non-power-of-two alignments.
+	(operand_general_constraint_met_p): Handle the new MUL VL addresses.
+	(print_immediate_offset_address): Likewise.
+	(aarch64_print_operand): Likewise.
+	* aarch64-opc-2.c: Regenerate.
+	* aarch64-asm.h (ins_sve_addr_ri_s4xvl, ins_sve_addr_ri_s6xvl)
+	(ins_sve_addr_ri_s9xvl): New inserters.
+	* aarch64-asm.c (aarch64_ins_sve_addr_ri_s4xvl): New function.
+	(aarch64_ins_sve_addr_ri_s6xvl): Likewise.
+	(aarch64_ins_sve_addr_ri_s9xvl): Likewise.
+	* aarch64-asm-2.c: Regenerate.
+	* aarch64-dis.h (ext_sve_addr_ri_s4xvl, ext_sve_addr_ri_s6xvl)
+	(ext_sve_addr_ri_s9xvl): New extractors.
+	* aarch64-dis.c (aarch64_ext_sve_addr_reg_mul_vl): New function.
+	(aarch64_ext_sve_addr_ri_s4xvl): Likewise.
+	(aarch64_ext_sve_addr_ri_s6xvl): Likewise.
+	(aarch64_ext_sve_addr_ri_s9xvl): Likewise.
+	* aarch64-dis-2.c: Regenerate.
+
+2016-09-21  Richard Sandiford  <richard.sandiford@arm.com>
+
 	* aarch64-tbl.h (AARCH64_OPERANDS): Add entries for the new SVE
 	address operands.
 	* aarch64-opc.h (FLD_SVE_imm6, FLD_SVE_msz, FLD_SVE_xs_14)
diff --git a/opcodes/aarch64-asm-2.c b/opcodes/aarch64-asm-2.c
index 47a414c..da590ca 100644
--- a/opcodes/aarch64-asm-2.c
+++ b/opcodes/aarch64-asm-2.c
@@ -480,12 +480,6 @@ aarch64_insert_operand (const aarch64_operand *self,
     case 27:
     case 35:
     case 36:
-    case 123:
-    case 124:
-    case 125:
-    case 126:
-    case 127:
-    case 128:
     case 129:
     case 130:
     case 131:
@@ -494,7 +488,13 @@ aarch64_insert_operand (const aarch64_operand *self,
     case 134:
     case 135:
     case 136:
+    case 137:
+    case 138:
     case 139:
+    case 140:
+    case 141:
+    case 142:
+    case 145:
       return aarch64_ins_regno (self, info, code, inst);
     case 12:
       return aarch64_ins_reg_extended (self, info, code, inst);
@@ -531,8 +531,8 @@ aarch64_insert_operand (const aarch64_operand *self,
     case 68:
     case 69:
     case 70:
-    case 120:
-    case 122:
+    case 126:
+    case 128:
       return aarch64_ins_imm (self, info, code, inst);
     case 38:
     case 39:
@@ -587,46 +587,55 @@ aarch64_insert_operand (const aarch64_operand *self,
     case 90:
     case 91:
     case 92:
-      return aarch64_ins_sve_addr_ri_u6 (self, info, code, inst);
+      return aarch64_ins_sve_addr_ri_s4xvl (self, info, code, inst);
     case 93:
+      return aarch64_ins_sve_addr_ri_s6xvl (self, info, code, inst);
     case 94:
+      return aarch64_ins_sve_addr_ri_s9xvl (self, info, code, inst);
     case 95:
     case 96:
     case 97:
     case 98:
+      return aarch64_ins_sve_addr_ri_u6 (self, info, code, inst);
     case 99:
     case 100:
     case 101:
     case 102:
     case 103:
     case 104:
-      return aarch64_ins_sve_addr_rr_lsl (self, info, code, inst);
     case 105:
     case 106:
     case 107:
     case 108:
     case 109:
     case 110:
+      return aarch64_ins_sve_addr_rr_lsl (self, info, code, inst);
     case 111:
     case 112:
-      return aarch64_ins_sve_addr_rz_xtw (self, info, code, inst);
     case 113:
     case 114:
     case 115:
     case 116:
-      return aarch64_ins_sve_addr_zi_u5 (self, info, code, inst);
     case 117:
-      return aarch64_ins_sve_addr_zz_lsl (self, info, code, inst);
     case 118:
-      return aarch64_ins_sve_addr_zz_sxtw (self, info, code, inst);
+      return aarch64_ins_sve_addr_rz_xtw (self, info, code, inst);
     case 119:
-      return aarch64_ins_sve_addr_zz_uxtw (self, info, code, inst);
+    case 120:
     case 121:
+    case 122:
+      return aarch64_ins_sve_addr_zi_u5 (self, info, code, inst);
+    case 123:
+      return aarch64_ins_sve_addr_zz_lsl (self, info, code, inst);
+    case 124:
+      return aarch64_ins_sve_addr_zz_sxtw (self, info, code, inst);
+    case 125:
+      return aarch64_ins_sve_addr_zz_uxtw (self, info, code, inst);
+    case 127:
       return aarch64_ins_sve_scale (self, info, code, inst);
-    case 137:
+    case 143:
       return aarch64_ins_sve_index (self, info, code, inst);
-    case 138:
-    case 140:
+    case 144:
+    case 146:
       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 0d3b2c7..944a9eb 100644
--- a/opcodes/aarch64-asm.c
+++ b/opcodes/aarch64-asm.c
@@ -745,6 +745,56 @@ aarch64_ins_reg_shifted (const aarch64_operand *self ATTRIBUTE_UNUSED,
   return NULL;
 }
 
+/* Encode an SVE address [<base>, #<simm4>*<factor>, MUL VL],
+   where <simm4> is a 4-bit signed value and where <factor> is 1 plus
+   SELF's operand-dependent value.  fields[0] specifies the field that
+   holds <base>.  <simm4> is encoded in the SVE_imm4 field.  */
+const char *
+aarch64_ins_sve_addr_ri_s4xvl (const aarch64_operand *self,
+			       const aarch64_opnd_info *info,
+			       aarch64_insn *code,
+			       const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+  int factor = 1 + get_operand_specific_data (self);
+  insert_field (self->fields[0], code, info->addr.base_regno, 0);
+  insert_field (FLD_SVE_imm4, code, info->addr.offset.imm / factor, 0);
+  return NULL;
+}
+
+/* Encode an SVE address [<base>, #<simm6>*<factor>, MUL VL],
+   where <simm6> is a 6-bit signed value and where <factor> is 1 plus
+   SELF's operand-dependent value.  fields[0] specifies the field that
+   holds <base>.  <simm6> is encoded in the SVE_imm6 field.  */
+const char *
+aarch64_ins_sve_addr_ri_s6xvl (const aarch64_operand *self,
+			       const aarch64_opnd_info *info,
+			       aarch64_insn *code,
+			       const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+  int factor = 1 + get_operand_specific_data (self);
+  insert_field (self->fields[0], code, info->addr.base_regno, 0);
+  insert_field (FLD_SVE_imm6, code, info->addr.offset.imm / factor, 0);
+  return NULL;
+}
+
+/* Encode an SVE address [<base>, #<simm9>*<factor>, MUL VL],
+   where <simm9> is a 9-bit signed value and where <factor> is 1 plus
+   SELF's operand-dependent value.  fields[0] specifies the field that
+   holds <base>.  <simm9> is encoded in the concatenation of the SVE_imm6
+   and imm3 fields, with imm3 being the less-significant part.  */
+const char *
+aarch64_ins_sve_addr_ri_s9xvl (const aarch64_operand *self,
+			       const aarch64_opnd_info *info,
+			       aarch64_insn *code,
+			       const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+  int factor = 1 + get_operand_specific_data (self);
+  insert_field (self->fields[0], code, info->addr.base_regno, 0);
+  insert_fields (code, info->addr.offset.imm / factor, 0,
+		 2, FLD_imm3, FLD_SVE_imm6);
+  return NULL;
+}
+
 /* Encode an SVE address [X<n>, #<SVE_imm6> << <shift>], where <SVE_imm6>
    is a 6-bit unsigned number and where <shift> is SELF's operand-dependent
    value.  fields[0] specifies the base register field.  */
diff --git a/opcodes/aarch64-asm.h b/opcodes/aarch64-asm.h
index b81cfa1..5e13de0 100644
--- a/opcodes/aarch64-asm.h
+++ b/opcodes/aarch64-asm.h
@@ -69,6 +69,9 @@ 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_addr_ri_s4xvl);
+AARCH64_DECL_OPD_INSERTER (ins_sve_addr_ri_s6xvl);
+AARCH64_DECL_OPD_INSERTER (ins_sve_addr_ri_s9xvl);
 AARCH64_DECL_OPD_INSERTER (ins_sve_addr_ri_u6);
 AARCH64_DECL_OPD_INSERTER (ins_sve_addr_rr_lsl);
 AARCH64_DECL_OPD_INSERTER (ins_sve_addr_rz_xtw);
diff --git a/opcodes/aarch64-dis-2.c b/opcodes/aarch64-dis-2.c
index 3dd714f..48d6ce7 100644
--- a/opcodes/aarch64-dis-2.c
+++ b/opcodes/aarch64-dis-2.c
@@ -10426,12 +10426,6 @@ aarch64_extract_operand (const aarch64_operand *self,
     case 27:
     case 35:
     case 36:
-    case 123:
-    case 124:
-    case 125:
-    case 126:
-    case 127:
-    case 128:
     case 129:
     case 130:
     case 131:
@@ -10440,7 +10434,13 @@ aarch64_extract_operand (const aarch64_operand *self,
     case 134:
     case 135:
     case 136:
+    case 137:
+    case 138:
     case 139:
+    case 140:
+    case 141:
+    case 142:
+    case 145:
       return aarch64_ext_regno (self, info, code, inst);
     case 8:
       return aarch64_ext_regrt_sysins (self, info, code, inst);
@@ -10482,8 +10482,8 @@ aarch64_extract_operand (const aarch64_operand *self,
     case 68:
     case 69:
     case 70:
-    case 120:
-    case 122:
+    case 126:
+    case 128:
       return aarch64_ext_imm (self, info, code, inst);
     case 38:
     case 39:
@@ -10540,46 +10540,55 @@ aarch64_extract_operand (const aarch64_operand *self,
     case 90:
     case 91:
     case 92:
-      return aarch64_ext_sve_addr_ri_u6 (self, info, code, inst);
+      return aarch64_ext_sve_addr_ri_s4xvl (self, info, code, inst);
     case 93:
+      return aarch64_ext_sve_addr_ri_s6xvl (self, info, code, inst);
     case 94:
+      return aarch64_ext_sve_addr_ri_s9xvl (self, info, code, inst);
     case 95:
     case 96:
     case 97:
     case 98:
+      return aarch64_ext_sve_addr_ri_u6 (self, info, code, inst);
     case 99:
     case 100:
     case 101:
     case 102:
     case 103:
     case 104:
-      return aarch64_ext_sve_addr_rr_lsl (self, info, code, inst);
     case 105:
     case 106:
     case 107:
     case 108:
     case 109:
     case 110:
+      return aarch64_ext_sve_addr_rr_lsl (self, info, code, inst);
     case 111:
     case 112:
-      return aarch64_ext_sve_addr_rz_xtw (self, info, code, inst);
     case 113:
     case 114:
     case 115:
     case 116:
-      return aarch64_ext_sve_addr_zi_u5 (self, info, code, inst);
     case 117:
-      return aarch64_ext_sve_addr_zz_lsl (self, info, code, inst);
     case 118:
-      return aarch64_ext_sve_addr_zz_sxtw (self, info, code, inst);
+      return aarch64_ext_sve_addr_rz_xtw (self, info, code, inst);
     case 119:
-      return aarch64_ext_sve_addr_zz_uxtw (self, info, code, inst);
+    case 120:
     case 121:
+    case 122:
+      return aarch64_ext_sve_addr_zi_u5 (self, info, code, inst);
+    case 123:
+      return aarch64_ext_sve_addr_zz_lsl (self, info, code, inst);
+    case 124:
+      return aarch64_ext_sve_addr_zz_sxtw (self, info, code, inst);
+    case 125:
+      return aarch64_ext_sve_addr_zz_uxtw (self, info, code, inst);
+    case 127:
       return aarch64_ext_sve_scale (self, info, code, inst);
-    case 137:
+    case 143:
       return aarch64_ext_sve_index (self, info, code, inst);
-    case 138:
-    case 140:
+    case 144:
+    case 146:
       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 ed77b4d..ba6befd 100644
--- a/opcodes/aarch64-dis.c
+++ b/opcodes/aarch64-dis.c
@@ -1186,6 +1186,78 @@ aarch64_ext_reg_shifted (const aarch64_operand *self ATTRIBUTE_UNUSED,
   return 1;
 }
 
+/* Decode an SVE address [<base>, #<offset>*<factor>, MUL VL],
+   where <offset> is given by the OFFSET parameter and where <factor> is
+   1 plus SELF's operand-dependent value.  fields[0] specifies the field
+   that holds <base>.  */
+static int
+aarch64_ext_sve_addr_reg_mul_vl (const aarch64_operand *self,
+				 aarch64_opnd_info *info, aarch64_insn code,
+				 int64_t offset)
+{
+  info->addr.base_regno = extract_field (self->fields[0], code, 0);
+  info->addr.offset.imm = offset * (1 + get_operand_specific_data (self));
+  info->addr.offset.is_reg = FALSE;
+  info->addr.writeback = FALSE;
+  info->addr.preind = TRUE;
+  if (offset != 0)
+    info->shifter.kind = AARCH64_MOD_MUL_VL;
+  info->shifter.amount = 1;
+  info->shifter.operator_present = (info->addr.offset.imm != 0);
+  info->shifter.amount_present = FALSE;
+  return 1;
+}
+
+/* Decode an SVE address [<base>, #<simm4>*<factor>, MUL VL],
+   where <simm4> is a 4-bit signed value and where <factor> is 1 plus
+   SELF's operand-dependent value.  fields[0] specifies the field that
+   holds <base>.  <simm4> is encoded in the SVE_imm4 field.  */
+int
+aarch64_ext_sve_addr_ri_s4xvl (const aarch64_operand *self,
+			       aarch64_opnd_info *info, aarch64_insn code,
+			       const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+  int offset;
+
+  offset = extract_field (FLD_SVE_imm4, code, 0);
+  offset = ((offset + 8) & 15) - 8;
+  return aarch64_ext_sve_addr_reg_mul_vl (self, info, code, offset);
+}
+
+/* Decode an SVE address [<base>, #<simm6>*<factor>, MUL VL],
+   where <simm6> is a 6-bit signed value and where <factor> is 1 plus
+   SELF's operand-dependent value.  fields[0] specifies the field that
+   holds <base>.  <simm6> is encoded in the SVE_imm6 field.  */
+int
+aarch64_ext_sve_addr_ri_s6xvl (const aarch64_operand *self,
+			       aarch64_opnd_info *info, aarch64_insn code,
+			       const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+  int offset;
+
+  offset = extract_field (FLD_SVE_imm6, code, 0);
+  offset = (((offset + 32) & 63) - 32);
+  return aarch64_ext_sve_addr_reg_mul_vl (self, info, code, offset);
+}
+
+/* Decode an SVE address [<base>, #<simm9>*<factor>, MUL VL],
+   where <simm9> is a 9-bit signed value and where <factor> is 1 plus
+   SELF's operand-dependent value.  fields[0] specifies the field that
+   holds <base>.  <simm9> is encoded in the concatenation of the SVE_imm6
+   and imm3 fields, with imm3 being the less-significant part.  */
+int
+aarch64_ext_sve_addr_ri_s9xvl (const aarch64_operand *self,
+			       aarch64_opnd_info *info,
+			       aarch64_insn code,
+			       const aarch64_inst *inst ATTRIBUTE_UNUSED)
+{
+  int offset;
+
+  offset = extract_fields (code, 0, 2, FLD_SVE_imm6, FLD_imm3);
+  offset = (((offset + 256) & 511) - 256);
+  return aarch64_ext_sve_addr_reg_mul_vl (self, info, code, offset);
+}
+
 /* Decode an SVE address [<base>, #<offset> << <shift>], where <offset>
    is given by the OFFSET parameter and where <shift> is SELF's operand-
    dependent value.  fields[0] specifies the base register field <base>.  */
diff --git a/opcodes/aarch64-dis.h b/opcodes/aarch64-dis.h
index 0ce2d89..5619877 100644
--- a/opcodes/aarch64-dis.h
+++ b/opcodes/aarch64-dis.h
@@ -91,6 +91,9 @@ 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_addr_ri_s4xvl);
+AARCH64_DECL_OPD_EXTRACTOR (ext_sve_addr_ri_s6xvl);
+AARCH64_DECL_OPD_EXTRACTOR (ext_sve_addr_ri_s9xvl);
 AARCH64_DECL_OPD_EXTRACTOR (ext_sve_addr_ri_u6);
 AARCH64_DECL_OPD_EXTRACTOR (ext_sve_addr_rr_lsl);
 AARCH64_DECL_OPD_EXTRACTOR (ext_sve_addr_rz_xtw);
diff --git a/opcodes/aarch64-opc-2.c b/opcodes/aarch64-opc-2.c
index ed2b70b..a72f577 100644
--- a/opcodes/aarch64-opc-2.c
+++ b/opcodes/aarch64-opc-2.c
@@ -113,6 +113,12 @@ 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_ADDRESS, "SVE_ADDR_RI_S4xVL", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 4-bit signed offset, multiplied by VL"},
+  {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_S4x2xVL", 1 << OPD_F_OD_LSB | OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 4-bit signed offset, multiplied by 2*VL"},
+  {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_S4x3xVL", 2 << OPD_F_OD_LSB | OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 4-bit signed offset, multiplied by 3*VL"},
+  {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_S4x4xVL", 3 << OPD_F_OD_LSB | OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 4-bit signed offset, multiplied by 4*VL"},
+  {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_S6xVL", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 6-bit signed offset, multiplied by VL"},
+  {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_S9xVL", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 9-bit signed offset, multiplied by VL"},
   {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_U6", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 6-bit unsigned offset"},
   {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_U6x2", 1 << OPD_F_OD_LSB | OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 6-bit unsigned offset, multiplied by 2"},
   {AARCH64_OPND_CLASS_ADDRESS, "SVE_ADDR_RI_U6x4", 2 << OPD_F_OD_LSB | OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {FLD_Rn}, "an address with a 6-bit unsigned offset, multiplied by 4"},
diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c
index 6617e28..d0959b5 100644
--- a/opcodes/aarch64-opc.c
+++ b/opcodes/aarch64-opc.c
@@ -365,6 +365,7 @@ const struct aarch64_name_value_pair aarch64_operand_modifiers [] =
     {"sxtw", 0x6},
     {"sxtx", 0x7},
     {"mul", 0x0},
+    {"mul vl", 0x0},
     {NULL, 0},
 };
 
@@ -486,10 +487,11 @@ value_in_range_p (int64_t value, int low, int high)
   return (value >= low && value <= high) ? 1 : 0;
 }
 
+/* Return true if VALUE is a multiple of ALIGN.  */
 static inline int
 value_aligned_p (int64_t value, int align)
 {
-  return ((value & (align - 1)) == 0) ? 1 : 0;
+  return (value % align) == 0;
 }
 
 /* A signed value fits in a field.  */
@@ -1666,6 +1668,49 @@ operand_general_constraint_met_p (const aarch64_opnd_info *opnds, int idx,
 	    }
 	  break;
 
+	case AARCH64_OPND_SVE_ADDR_RI_S4xVL:
+	case AARCH64_OPND_SVE_ADDR_RI_S4x2xVL:
+	case AARCH64_OPND_SVE_ADDR_RI_S4x3xVL:
+	case AARCH64_OPND_SVE_ADDR_RI_S4x4xVL:
+	  min_value = -8;
+	  max_value = 7;
+	sve_imm_offset_vl:
+	  assert (!opnd->addr.offset.is_reg);
+	  assert (opnd->addr.preind);
+	  num = 1 + get_operand_specific_data (&aarch64_operands[type]);
+	  min_value *= num;
+	  max_value *= num;
+	  if ((opnd->addr.offset.imm != 0 && !opnd->shifter.operator_present)
+	      || (opnd->shifter.operator_present
+		  && opnd->shifter.kind != AARCH64_MOD_MUL_VL))
+	    {
+	      set_other_error (mismatch_detail, idx,
+			       _("invalid addressing mode"));
+	      return 0;
+	    }
+	  if (!value_in_range_p (opnd->addr.offset.imm, min_value, max_value))
+	    {
+	      set_offset_out_of_range_error (mismatch_detail, idx,
+					     min_value, max_value);
+	      return 0;
+	    }
+	  if (!value_aligned_p (opnd->addr.offset.imm, num))
+	    {
+	      set_unaligned_error (mismatch_detail, idx, num);
+	      return 0;
+	    }
+	  break;
+
+	case AARCH64_OPND_SVE_ADDR_RI_S6xVL:
+	  min_value = -32;
+	  max_value = 31;
+	  goto sve_imm_offset_vl;
+
+	case AARCH64_OPND_SVE_ADDR_RI_S9xVL:
+	  min_value = -256;
+	  max_value = 255;
+	  goto sve_imm_offset_vl;
+
 	case AARCH64_OPND_SVE_ADDR_RI_U6:
 	case AARCH64_OPND_SVE_ADDR_RI_U6x2:
 	case AARCH64_OPND_SVE_ADDR_RI_U6x4:
@@ -2645,7 +2690,13 @@ print_immediate_offset_address (char *buf, size_t size,
     }
   else
     {
-      if (opnd->addr.offset.imm)
+      if (opnd->shifter.operator_present)
+	{
+	  assert (opnd->shifter.kind == AARCH64_MOD_MUL_VL);
+	  snprintf (buf, size, "[%s,#%d,mul vl]",
+		    base, opnd->addr.offset.imm);
+	}
+      else if (opnd->addr.offset.imm)
 	snprintf (buf, size, "[%s,#%d]", base, opnd->addr.offset.imm);
       else
 	snprintf (buf, size, "[%s]", base);
@@ -3114,6 +3165,12 @@ aarch64_print_operand (char *buf, size_t size, bfd_vma pc,
     case AARCH64_OPND_ADDR_SIMM7:
     case AARCH64_OPND_ADDR_SIMM9:
     case AARCH64_OPND_ADDR_SIMM9_2:
+    case AARCH64_OPND_SVE_ADDR_RI_S4xVL:
+    case AARCH64_OPND_SVE_ADDR_RI_S4x2xVL:
+    case AARCH64_OPND_SVE_ADDR_RI_S4x3xVL:
+    case AARCH64_OPND_SVE_ADDR_RI_S4x4xVL:
+    case AARCH64_OPND_SVE_ADDR_RI_S6xVL:
+    case AARCH64_OPND_SVE_ADDR_RI_S9xVL:
     case AARCH64_OPND_SVE_ADDR_RI_U6:
     case AARCH64_OPND_SVE_ADDR_RI_U6x2:
     case AARCH64_OPND_SVE_ADDR_RI_U6x4:
diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index aba4b2d..986cef6 100644
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -2820,6 +2820,24 @@ struct aarch64_opcode aarch64_opcode_table[] =
       "a prefetch operation specifier")					\
     Y(SYSTEM, hint, "BARRIER_PSB", 0, F (),				\
       "the PSB option name CSYNC")					\
+    Y(ADDRESS, sve_addr_ri_s4xvl, "SVE_ADDR_RI_S4xVL",			\
+      0 << OPD_F_OD_LSB, F(FLD_Rn),					\
+      "an address with a 4-bit signed offset, multiplied by VL")	\
+    Y(ADDRESS, sve_addr_ri_s4xvl, "SVE_ADDR_RI_S4x2xVL",		\
+      1 << OPD_F_OD_LSB, F(FLD_Rn),					\
+      "an address with a 4-bit signed offset, multiplied by 2*VL")	\
+    Y(ADDRESS, sve_addr_ri_s4xvl, "SVE_ADDR_RI_S4x3xVL",		\
+      2 << OPD_F_OD_LSB, F(FLD_Rn),					\
+      "an address with a 4-bit signed offset, multiplied by 3*VL")	\
+    Y(ADDRESS, sve_addr_ri_s4xvl, "SVE_ADDR_RI_S4x4xVL",		\
+      3 << OPD_F_OD_LSB, F(FLD_Rn),					\
+      "an address with a 4-bit signed offset, multiplied by 4*VL")	\
+    Y(ADDRESS, sve_addr_ri_s6xvl, "SVE_ADDR_RI_S6xVL",			\
+      0 << OPD_F_OD_LSB, F(FLD_Rn),					\
+      "an address with a 6-bit signed offset, multiplied by VL")	\
+    Y(ADDRESS, sve_addr_ri_s9xvl, "SVE_ADDR_RI_S9xVL",			\
+      0 << OPD_F_OD_LSB, F(FLD_Rn),					\
+      "an address with a 9-bit signed offset, multiplied by VL")	\
     Y(ADDRESS, sve_addr_ri_u6, "SVE_ADDR_RI_U6", 0 << OPD_F_OD_LSB,	\
       F(FLD_Rn), "an address with a 6-bit unsigned offset")		\
     Y(ADDRESS, sve_addr_ri_u6, "SVE_ADDR_RI_U6x2", 1 << OPD_F_OD_LSB,	\