diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/opcode/aarch64.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h index 1b01931..df07d3b 100644 --- a/include/opcode/aarch64.h +++ b/include/opcode/aarch64.h @@ -1390,7 +1390,27 @@ extern const aarch64_opcode aarch64_opcode_table[]; /* This instruction need VGx2 or VGx4 mandatorily in the operand passed to assembler. */ #define F_VG_REQ (1ULL << 36) -/* Next bit is 37. */ + +/* 4-bit flag field to indicate subclass of instructions. + Note the overlap between the set of subclass flags in each logical category + (F_LDST_*, F_ARITH_*, F_BRANCH_* etc.); The usage of flags as + iclass-specific enums is intentional. */ +#define F_SUBCLASS (15ULL << 37) + +#define F_LDST_LOAD (1ULL << 37) +#define F_LDST_STORE (2ULL << 37) +/* Subclasses to denote add, sub and mov insns. */ +#define F_ARITH_ADD (1ULL << 37) +#define F_ARITH_SUB (2ULL << 37) +#define F_ARITH_MOV (3ULL << 37) +/* Subclasses to denote call and ret insns. */ +#define F_BRANCH_CALL (1ULL << 37) +#define F_BRANCH_RET (2ULL << 37) +/* Subclass to denote that only tag update is involved. */ +#define F_DP_TAG_ONLY (1ULL << 37) + +#define F_SUBCLASS_OTHER (F_SUBCLASS) +/* Next bit is 41. */ /* Instruction constraints. */ /* This instruction has a predication constraint on the instruction at PC+4. */ @@ -1429,6 +1449,16 @@ pseudo_opcode_p (const aarch64_opcode *opcode) return (opcode->flags & F_PSEUDO) != 0lu; } +/* Whether the opcode has the specific subclass flag. + N.B. The overlap between F_LDST_*, F_ARITH_*, and F_BRANCH_* etc. subclass + flags means that the callers of this function have the responsibility of + checking for the flags appropriate for the specific iclass. */ +static inline bool +aarch64_opcode_subclass_p (const aarch64_opcode *opcode, uint64_t flag) +{ + return ((opcode->flags & F_SUBCLASS) == flag); +} + /* Deal with two possible scenarios: If F_OP_PAIR_OPT not set, as is the case by default, F_OPDn_OPT must equal IDX + 1, else F_OPDn_OPT must be in range [IDX, IDX + 1]. */ |