[AArch64][Patch 4/5] Support HINT aliases taking operands.
The Statistical Profile Extension adds the instruction PSB CSYNC as an alias for the HINT #17 instruction. This patch adds support for aliases of HINT which take an operand, adding a table to store operand names and their matching hint number as well as encoding and decoding functions for such operands. Parsing and printing the operands are deferred to any support added for aliases with such operands. include/opcode/ 2015-12-11 Matthew Wahab <matthew.wahab@arm.com> * aarch64.h (aarch64_hint_options): Declare. (aarch64_opnd_info): Add field hint_option. opcodes/ 2015-12-11 Matthew Wahab <matthew.wahab@arm.com> * aarch64-asm.c (aarch64_ins_hint): New. * aarch64-asm.h (aarch64_ins_hint): Declare. * aarch64-dis.c (aarch64_ext_hint): New. * aarch64-dis.h (aarch64_ext_hint): Declare. * aarch64-opc-2.c: Regenerate. * aarch64-opc.c (aarch64_hint_options): New. * aarch64-tbl.h (AARCH64_OPERANDS): Fix typos. Change-Id: I2205038fc1c47d3025d1f0bc2fbf405b5575b287
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10 changed files with 75 additions and 4 deletions
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@ -1,3 +1,8 @@
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2015-12-11 Matthew Wahab <matthew.wahab@arm.com>
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* aarch64.h (aarch64_hint_options): Declare.
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(aarch64_opnd_info): Add field hint_option.
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2015-12-11 Matthew Wahab <matthew.wahab@arm.com>
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* aarch64.h (AARCH64_FEATURE_PROFILE): New.
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@ -653,6 +653,7 @@ struct aarch64_name_value_pair
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extern const struct aarch64_name_value_pair aarch64_operand_modifiers [];
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extern const struct aarch64_name_value_pair aarch64_barrier_options [16];
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extern const struct aarch64_name_value_pair aarch64_prfops [32];
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extern const struct aarch64_name_value_pair aarch64_hint_options [];
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typedef struct
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{
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@ -786,6 +787,7 @@ struct aarch64_opnd_info
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aarch64_insn pstatefield;
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const aarch64_sys_ins_reg *sysins_op;
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const struct aarch64_name_value_pair *barrier;
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const struct aarch64_name_value_pair *hint_option;
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const struct aarch64_name_value_pair *prfop;
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};
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@ -1,3 +1,13 @@
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2015-12-11 Matthew Wahab <matthew.wahab@arm.com>
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* aarch64-asm.c (aarch64_ins_hint): New.
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* aarch64-asm.h (aarch64_ins_hint): Declare.
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* aarch64-dis.c (aarch64_ext_hint): New.
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* aarch64-dis.h (aarch64_ext_hint): Declare.
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* aarch64-opc-2.c: Regenerate.
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* aarch64-opc.c (aarch64_hint_options): New.
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* aarch64-tbl.h (AARCH64_OPERANDS): Fix typos.
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2015-12-11 Matthew Wahab <matthew.wahab@arm.com>
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* aarch64-gen.c (find_alias_opcode): Set max_num_aliases to 16.
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@ -667,6 +667,19 @@ aarch64_ins_prfop (const aarch64_operand *self ATTRIBUTE_UNUSED,
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return NULL;
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}
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/* Encode the hint number for instructions that alias HINT but take an
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operand. */
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const char *
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aarch64_ins_hint (const aarch64_operand *self ATTRIBUTE_UNUSED,
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const aarch64_opnd_info *info, aarch64_insn *code,
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const aarch64_inst *inst ATTRIBUTE_UNUSED)
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{
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/* CRm:op2. */
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insert_fields (code, info->hint_option->value, 0, 2, FLD_op2, FLD_CRm);
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return NULL;
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}
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/* Encode the extended register operand for e.g.
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STR <Qt>, [<Xn|SP>, <R><m>{, <extend> {<amount>}}]. */
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const char *
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@ -64,6 +64,7 @@ AARCH64_DECL_OPD_INSERTER (ins_sysreg);
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AARCH64_DECL_OPD_INSERTER (ins_pstatefield);
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AARCH64_DECL_OPD_INSERTER (ins_sysins_op);
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AARCH64_DECL_OPD_INSERTER (ins_barrier);
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AARCH64_DECL_OPD_INSERTER (ins_hint);
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AARCH64_DECL_OPD_INSERTER (ins_prfop);
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AARCH64_DECL_OPD_INSERTER (ins_reg_extended);
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AARCH64_DECL_OPD_INSERTER (ins_reg_shifted);
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@ -1067,6 +1067,33 @@ aarch64_ext_prfop (const aarch64_operand *self ATTRIBUTE_UNUSED,
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return 1;
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}
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/* Decode the hint number for an alias taking an operand. Set info->hint_option
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to the matching name/value pair in aarch64_hint_options. */
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int
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aarch64_ext_hint (const aarch64_operand *self ATTRIBUTE_UNUSED,
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aarch64_opnd_info *info,
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aarch64_insn code,
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const aarch64_inst *inst ATTRIBUTE_UNUSED)
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{
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/* CRm:op2. */
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unsigned hint_number;
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int i;
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hint_number = extract_fields (code, 0, 2, FLD_CRm, FLD_op2);
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for (i = 0; aarch64_hint_options[i].name != NULL; i++)
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{
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if (hint_number == aarch64_hint_options[i].value)
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{
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info->hint_option = &(aarch64_hint_options[i]);
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return 1;
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}
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}
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return 0;
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}
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/* Decode the extended register operand for e.g.
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STR <Qt>, [<Xn|SP>, <R><m>{, <extend> {<amount>}}]. */
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int
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@ -86,6 +86,7 @@ AARCH64_DECL_OPD_EXTRACTOR (ext_sysreg);
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AARCH64_DECL_OPD_EXTRACTOR (ext_pstatefield);
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AARCH64_DECL_OPD_EXTRACTOR (ext_sysins_op);
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AARCH64_DECL_OPD_EXTRACTOR (ext_barrier);
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AARCH64_DECL_OPD_EXTRACTOR (ext_hint);
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AARCH64_DECL_OPD_EXTRACTOR (ext_prfop);
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AARCH64_DECL_OPD_EXTRACTOR (ext_reg_extended);
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AARCH64_DECL_OPD_EXTRACTOR (ext_reg_shifted);
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@ -107,11 +107,11 @@ const struct aarch64_operand aarch64_operands[] =
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{AARCH64_OPND_CLASS_SYSTEM, "PSTATEFIELD", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "a PSTATE field name"},
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{AARCH64_OPND_CLASS_SYSTEM, "SYSREG_AT", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "an address translation operation specifier"},
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{AARCH64_OPND_CLASS_SYSTEM, "SYSREG_DC", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "a data cache maintenance operation specifier"},
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{AARCH64_OPND_CLASS_SYSTEM, "SYSREG_IC", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "an instructin cache maintenance operation specifier"},
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{AARCH64_OPND_CLASS_SYSTEM, "SYSREG_IC", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "an instruction cache maintenance operation specifier"},
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{AARCH64_OPND_CLASS_SYSTEM, "SYSREG_TLBI", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "a TBL invalidation operation specifier"},
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{AARCH64_OPND_CLASS_SYSTEM, "BARRIER", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "a barrier option name"},
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{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"},
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{AARCH64_OPND_CLASS_SYSTEM, "PRFOP", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "an prefetch operation specifier"},
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{AARCH64_OPND_CLASS_SYSTEM, "PRFOP", OPD_F_HAS_INSERTER | OPD_F_HAS_EXTRACTOR, {}, "a prefetch operation specifier"},
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{AARCH64_OPND_CLASS_NIL, "", 0, {0}, "DUMMY"},
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};
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@ -335,6 +335,18 @@ const struct aarch64_name_value_pair aarch64_barrier_options[16] =
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{ "sy", 0xf },
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};
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/* Table describing the operands supported by the aliases of the HINT
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instruction.
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The name column is the operand that is accepted for the alias. The value
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column is the hint number of the alias. The list of operands is terminated
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by NULL in the name column. */
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const struct aarch64_name_value_pair aarch64_hint_options[] =
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{
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{ NULL, 0x0 },
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};
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/* op -> op: load = 0 instruction = 1 store = 2
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l -> level: 1-3
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t -> temporal: temporal (retained) = 0 non-temporal (streaming) = 1 */
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@ -2654,7 +2654,7 @@ struct aarch64_opcode aarch64_opcode_table[] =
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Y(SYSTEM, sysins_op, "SYSREG_DC", 0, F(), \
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"a data cache maintenance operation specifier") \
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Y(SYSTEM, sysins_op, "SYSREG_IC", 0, F(), \
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"an instructin cache maintenance operation specifier") \
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"an instruction cache maintenance operation specifier") \
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Y(SYSTEM, sysins_op, "SYSREG_TLBI", 0, F(), \
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"a TBL invalidation operation specifier") \
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Y(SYSTEM, barrier, "BARRIER", 0, F(), \
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Y(SYSTEM, barrier, "BARRIER_ISB", 0, F(), \
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"the ISB option name SY or an optional 4-bit unsigned immediate") \
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Y(SYSTEM, prfop, "PRFOP", 0, F(), \
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"an prefetch operation specifier")
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"a prefetch operation specifier")
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