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

ORR (vector, immediate, 4S)

Test 1: uops

Code:

  orr v0.4s, #1
  movi v0.16b, 1

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 0.001

Load/store unit issues: 0.000

SIMD/FP unit issues: 1.000

retire uop (01)cycle (02)schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch simd uop (57)ldst uops in schedulers (5b)dispatch uop (78)map simd uop (7e)map simd uop inputs (81)? int output thing (e9)? simd retires (ee)
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000
1004203310011100010005024810001000100011000

Test 2: Latency 1->1

Code:

  orr v0.4s, #1
  movi v0.16b, 1

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0033

retire uop (01)cycle (02)schedule 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)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)? int output thing (e9)? simd retires (ee)? int retires (ef)
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100
1020420033101011011000010010000300509248101002001000420010004110000100

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0033

retire uop (01)cycle (02)schedule 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)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)? int output thing (e9)? simd retires (ee)? int retires (ef)
10024200331002121100002010000705092481002020100042010004111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010

Test 3: throughput

Count: 8

Code:

  movi v0.16b, 0
  orr v0.4s, #1
  movi v1.16b, 0
  orr v1.4s, #1
  movi v2.16b, 0
  orr v2.4s, #1
  movi v3.16b, 0
  orr v3.4s, #1
  movi v4.16b, 0
  orr v4.4s, #1
  movi v5.16b, 0
  orr v5.4s, #1
  movi v6.16b, 0
  orr v6.4s, #1
  movi v7.16b, 0
  orr v7.4s, #1

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.5011

retire uop (01)cycle (02)schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)dispatch ldst uop (58)int uops in schedulers (59)simd uops in schedulers (5a)ldst uops in schedulers (5b)dispatch uop (78)map int uop (7c)map ldst uop (7d)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)? int output thing (e9)? simd retires (ee)? int retires (ef)
160204405028010910180008100800120300032005680113200080013200800131160000100
160204401108011010180009100800130300032005280112200080012200800121160000100
160204400868010910180008100800120300032005280112200080012200800121160000100
160204400868010910180008100800120300032005280112200080012200800121160000100
12809032330641208164039806404760920070712032019281667147870780047200800131160000100
160204401208011010180009100800130300032005280112200080012200800121160000100
160204400868010910180008100800120300032005280112200080012200800121160000100
160204400868010910180008100800120300032005280112200080012200800131160000100
160204400868010910180008100800120300032005280112200080012200800121160000100
160204400868010910180008100800120300032005680113200080013200800121160000100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.5052

retire uop (01)cycle (02)schedule 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)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)? int output thing (e9)? simd retires (ee)? int retires (ef)
160024438758002011800091080013303200008001020800002080000116000010
160024412788001111800001080000303200008001020800002080000116000010
160024403878001111800001080000303200008001020800002080000116000010
160024404188001111800001080000303200008001020800002080000116000010
160024403918001111800001080000303200008001020800002080000116000010
160024404338001111800001080000303200008001020800002080000116000010
160024405568001111800001080000303200008001020800002080000116000010
160024404718001111800001080000303200008001020800002080000116000010
160024403848001111800001080000303200008001020800002080000116000010
160024404218001111800001080000303200008001020800002080000116000010

Test 4: throughput

Count: 16

Code:

  orr v0.4s, #1
  orr v1.4s, #1
  orr v2.4s, #1
  orr v3.4s, #1
  orr v4.4s, #1
  orr v5.4s, #1
  orr v6.4s, #1
  orr v7.4s, #1
  orr v8.4s, #1
  orr v9.4s, #1
  orr v10.4s, #1
  orr v11.4s, #1
  orr v12.4s, #1
  orr v13.4s, #1
  orr v14.4s, #1
  orr v15.4s, #1

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.5002

retire uop (01)cycle (02)schedule 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)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)? int output thing (e9)? simd retires (ee)? int retires (ef)
160204805541603441011602431001602473006404321602072001601112001600141160000100
160204801321601541011600531001600573006408081603012001602052001600151160000100
160204800341601051011600041001600083006400361601082001600122001600121160000100
160204800341601051011600041001600083006400361601082001600122001602061160000100
160204801781602001011600991001601033006404081602012001601052001600641160000100
160204800341601051011600041001600083006402001601522001600622001600121160000100
160204801801602031011601021001601063006400441601102001600142001600611160000100
160204800341601051011600041001600083006402001601522001600602001601081160000100
160204800341601051011600041001600083006400361601082001600122001600121160000100
160204800341601051011600041001600083006402441601602001600642001600121160000100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.5002

retire uop (01)cycle (02)schedule uop (52)schedule int uop (53)schedule simd uop (54)schedule ldst uop (55)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)? int output thing (e9)? simd retires (ee)? int retires (ef)
1600248022216001711160006010160010306400441600202016001420160000116000010
1600248003816001111160000010160000306400001600102016000020160000116000010
1600248003516001111160000010160000306400001600102016000020160000116000010
1600248003416001111160000010160000306400001600102016000020160000116000010
1600248003416001111160000010160000306400001600102016000020160000116000010
1600248003416001111160000010160000306400001600102016000020160060116000010
1600248003416001111160000010160000306400001600102016000020160000116000010
1600248003416001111160000010160000306400001600102016000020160000116000010
1600248003416001111160000010160000306400001600102016000020160000116000010
1600248003416001111160000010160000306400001600102016000020160000116000010