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, 2S)

Test 1: uops

Code:

  orr v0.2s, #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 v0.2s, #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)
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010
10024200331002121100002010000705092481002020100002010000111000010

Test 3: throughput

Count: 8

Code:

  movi v0.16b, 0
  orr v0.2s, #1
  movi v1.16b, 0
  orr v1.2s, #1
  movi v2.16b, 0
  orr v2.2s, #1
  movi v3.16b, 0
  orr v3.2s, #1
  movi v4.16b, 0
  orr v4.2s, #1
  movi v5.16b, 0
  orr v5.2s, #1
  movi v6.16b, 0
  orr v6.2s, #1
  movi v7.16b, 0
  orr v7.2s, #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)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)
160204404528011010180009100800133003200568011320080013200800131160000100
160204401268011010180009100800133003200568011320080013200800121160000100
160204400868010910180008100800123003200528011220080012200800131160000100
160204400868010910180008100800123003200528011220080012200800121160000100
160204400868010910180008100800123003200528011220080012200800121160000100
160204400868010910180008100800123003200528011220080012200800121160000100
160204400868010910180008100800123003200568011320080013200800131160000100
160204401068011010180009100800133003200528011220080012200800121160000100
160204400868010910180008100800123003200528011220080012200800121160000100
160204400998011010180009100800133003200528011220080012200800121160000100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.5055

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)
160024439318001911800081080012303200008001020800002080000116000010
160024412918001111800001080000303200008001020800002080000116000010
160024403798001111800001080000303200008001020800002080000116000010
160024403848001111800001080000303200008001020800002080000116000010
160024404048001111800001080000303200008001020800002080000116000010
160024404018001111800001080000303200008001020800002080000116000010
160024404218001111800001080000303200008001020800002080000116000010
160024404188001111800001080000303201928005720800472080000116000010
160024404358001111800001080000303200008001020800002080000116000010
160024403858001111800001080000303200008001020800002080000116000010

Test 4: throughput

Count: 16

Code:

  orr v0.2s, #1
  orr v1.2s, #1
  orr v2.2s, #1
  orr v3.2s, #1
  orr v4.2s, #1
  orr v5.2s, #1
  orr v6.2s, #1
  orr v7.2s, #1
  orr v8.2s, #1
  orr v9.2s, #1
  orr v10.2s, #1
  orr v11.2s, #1
  orr v12.2s, #1
  orr v13.2s, #1
  orr v14.2s, #1
  orr v15.2s, #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)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)
1602048005416010510116000401001600083006400441601102001600142001600141160000100
1602048003516010910116000801001600123006400361601082001600122001600121160000100
1602048003416010510116000401001600083006400521601122001600152001600121160000100
1602048003416010510116000401001600083006400361601082001600122001600631160000100
1602048003416010510116000401001600083006400361601082001600122001600601160000100
1602048003516010910116000801001600123006400361601082001600122001600121160000100
1602048003416010510116000401001600083006400361601082001600122001600121160000100
1602048003416010510116000401001600083006400361601082001600122001600121160000100
1602048010716015210116005101001600553006400361601082001600122001600121160000100
1602048003416010510116000401001600083006400361601082001600122021600602160000100

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)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)
160025802341600511116004010160052306401961600612016006020160014116000010
160024801071600111116000010160000306400001600102016000020160000116000010
160024800341600111116000010160000306400001600102016000020160000116000010
160024800341600111116000010160000306400001600102016000020160000116000010
160024800341600111116000010160000306400001600102016000020160000116000010
160024800341600111116000010160000306400001600102016000020160000116000010
160024800341600111116000010160000306400001600102016000020160000116000010
160024800341600111116000010160000306401961600612016005820160000116000010
160024800341600111116000010160000306400001600102016000020160000116000010
160024800341600111116000010160000306400001600102016000020160000116000010