diff options
| -rw-r--r-- | include/opcode/aarch64.h | 3 | ||||
| -rw-r--r-- | opcodes/aarch64-opc.c | 22 |
2 files changed, 25 insertions, 0 deletions
diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h index 7c0f7ce..3c1f522 100644 --- a/include/opcode/aarch64.h +++ b/include/opcode/aarch64.h @@ -1858,6 +1858,9 @@ aarch64_sve_dupm_mov_immediate_p (uint64_t, int); extern bool aarch64_cpu_supports_inst_p (aarch64_feature_set, aarch64_inst *); +extern int +calc_ldst_datasize (const aarch64_opnd_info *opnds); + #ifdef DEBUG_AARCH64 extern int debug_dump; diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c index 1196844..091df2c 100644 --- a/opcodes/aarch64-opc.c +++ b/opcodes/aarch64-opc.c @@ -1668,6 +1668,28 @@ check_za_access (const aarch64_opnd_info *opnd, return true; } +/* Given a load/store operation, calculate the size of transferred data via a + cumulative sum of qualifier sizes preceding the address operand in the + OPNDS operand list argument. */ +int +calc_ldst_datasize (const aarch64_opnd_info *opnds) +{ + unsigned num_bytes = 0; /* total number of bytes transferred. */ + enum aarch64_operand_class opnd_class; + enum aarch64_opnd type; + + for (int i = 0; i < AARCH64_MAX_OPND_NUM; i++) + { + type = opnds[i].type; + opnd_class = aarch64_operands[type].op_class; + if (opnd_class == AARCH64_OPND_CLASS_ADDRESS) + break; + num_bytes += aarch64_get_qualifier_esize (opnds[i].qualifier); + } + return num_bytes; +} + + /* General constraint checking based on operand code. Return 1 if OPNDS[IDX] meets the general constraint of operand code TYPE |