Apple Microarchitecture Research by Dougall Johnson

M1/A14 P-core (Firestorm): Overview | Base Instructions | SIMD and FP Instructions
M1/A14 E-core (Icestorm):  Overview | Base Instructions | SIMD and FP Instructions

NEG (vector, 2D)

Test 1: uops

Code:

  neg v0.2d, v0.2d
  movi v0.16b, 1
  movi v1.16b, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 0.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 1.000

retire uop (01)cycle (02)031e3f4e51schedule uop (52)schedule simd uop (54)dispatch simd uop (57)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map simd uop (7e)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst simd alu (9a)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
100420371506116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452102018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452102018203720371571318951000100010002037203711100110001073116111786100020382038203820382038
100420371636116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038
100420371506116862510001000100026452112018203720371571318951000100010002037203711100110000073116111786100020382038203820382038

Test 2: Latency 1->2

Code:

  neg v0.2d, v0.2d
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)031e3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10204200371500900196862510100100100001001000050028475211200182003720037184213187451010020010000200100002003720037111020110099100100100001000007101162119791100001002003820038200382003820038
1020420037150061196862510100100100001001000050028475210200182003720037184213187451010020010000200100002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500124196862510100100100001001000050028475210200182003720037184293187451010020010000200100002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
1020420037150061196862510100100100001251000050028475211200182003720037184213187451010020010000200100002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500149196862510100100100001001000050028475211200182003720037184213187451010020010000200100002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500251196862510100100100001001000050028475211200182003720037184213187451010020010000200100002003720037111020110099100100100001002479287101161119791100001002003820038200382003820038
10204200371500235196862510100100100001001000050028475211200182003720037184213187451010020010000200100002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
1020420037150061196862510100100100001001000050028475210200182003720037184213187451010020010000200100002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
1020420037150082196862510100100100001001000050028475210200182003720037184213187451010020010000200100002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
102042003715005441968625101001001000010010000500284752102001820037200371842131874510100200100002001000020037200371110201100991001001000010000127101161119791100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)0309181e1f3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)696d6emap stall dispatch (70)simd prf full (72)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)a9cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
1002420037150000061196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
1002420037150000061196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001030640216221978610000102003820038200382003820038
10024200371550000155196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
1002420037150000061196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
1002420037150000061196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
1002420037150000061196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
10024200371500000166196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
1002420037150000061196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
10024200371500000103196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001000640216221978610000102003820038200382003820038
1002420037150000061196862510010101000010100005028475212001820037200371844303187671001020100002010000200372003711100211091010100001020640216221978610000102003820038200382003820038

Test 3: throughput

Count: 8

Code:

  neg v0.2d, v8.2d
  neg v1.2d, v8.2d
  neg v2.2d, v8.2d
  neg v3.2d, v8.2d
  neg v4.2d, v8.2d
  neg v5.2d, v8.2d
  neg v6.2d, v8.2d
  neg v7.2d, v8.2d
  movi v8.16b, 9

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)031e3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)simd prf full (72)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)c2branch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfmap dispatch bubble (d6)fetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
8020420057151029258010810080008100800205006401321200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401320200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401321200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401320200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401320200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401320200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
802042003815015149258010810080008100800205006401321200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401321200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401321200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039
8020420038150029258010810080008100800205006401321200192003820038997706998980120200800322008003220038200381180201100991001008000010000111511816020035800001002003920039200392003920039

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)03191e3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
80024200501500039258001010800001080000506400000200192003820038999631001880010208000020800002003820038118002110910108000010005020416422003580000102003920039200392003920039
80024200381500039258001010800001080000506400000200192003820038999631001880010208000020800002003820038118002110910108000010005020416342003580000102003920039200392003920039
80024200381500039258001010800001080000506400000200192003820038999631001880010208000020800002003820038118002110910108000010005020416442003580000102003920039200392003920039
80024200381500039258001010800001080000506400000200192003820038999631001880010208000020800002003820038118002110910108000010005020416422003580000102003920039200392003920039
80024200381500039258001010800001080000506400001200192003820038999631001880010208000020800002003820038118002110910108000010005020416422003580000102003920039200392003920039
8002420038150102532580104108000010800005064000002001920038200381000531001880010208000020800962003820038118002110910108000010017405020416422003580000102003920039200392003920039
8002420038150014439258001010800001080000506400000200602003820295999471001680208208000020800972003820096118002110910108000010005020216342003580000102003920039200392003920039
80024200381500039258001010800001080000506400000200192003820038999631001880010208000020800002003820038118002110910108000010005020416242003580000102003920088200392003920039
800242003815005439258001010800001080000506400000200192003820038999631001880010208000020800002003820038118002110910108000010005020416432003580000102003920039200392003920039
800242003815000146258001010800001080000506400000200192003820038999631001880010208000020800002003820038118002110910108000010005020416242003580000102003920039200392003920039