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

SUQADD (vector, 2D)

Test 1: uops

Code:

  suqadd v0.2d, v1.2d
  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: 0.001

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)
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000
1004303310011100010007590510001000200011000

Test 2: Latency 1->1

Code:

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

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0033

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 ldst uop inputs (80)map simd uop inputs (81)? int output thing (e9)? ldst retires (ed)? simd retires (ee)? int retires (ef)
102043003310101101100001001000030076890510100200100062000200081010000100
102043003310101101100001001000030076890510100200100042000200081010000100
102043003310101101100001001000030076890510100200100042000200081010000100
102043003310101101100001001000030076890510100200100042000200081010000100
102043003310101101100001001000030076890510100200100042000200081010000100
102043003310101101100001001000030076890510100200100042000200081010000100
102043003310101101100001001000030076890510100200100042000200081010000100
1020430033101011011000010010000300768905101002001000450223160173502186176486323000
102043003310101101100001001000030076890510100200100062000200081010000100
102043003310101101100001001000030076890510100200100042000200081010000100

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0033

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)
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010

Test 3: Latency 1->2

Code:

  suqadd v0.2d, v0.2d
  movi v0.16b, 1

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0033

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)
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000307769247101332021004220020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100
1020430033101011011000010010000300768905101002001000420020008110000100

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0033

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)
10024300331002121100002010000707689051002020100042020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020402111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300841002921100082010033707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300331002121100002010000707689051002020100002020082111000010
10024300331002121100002010000707689051002020100002020000111000010
10024300841002921100082010033707692471005120100442020000111000010

Test 4: throughput

Count: 8

Code:

  movi v0.16b, 0
  suqadd v0.2d, v8.2d
  movi v1.16b, 0
  suqadd v1.2d, v8.2d
  movi v2.16b, 0
  suqadd v2.2d, v8.2d
  movi v3.16b, 0
  suqadd v3.2d, v8.2d
  movi v4.16b, 0
  suqadd v4.2d, v8.2d
  movi v5.16b, 0
  suqadd v5.2d, v8.2d
  movi v6.16b, 0
  suqadd v6.2d, v8.2d
  movi v7.16b, 0
  suqadd 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): 0.5011

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)
1602044052680109101800081008001230032005280112200800122001600241160000100
1602044011080110101800091008001330032005280112200800122001600241160000100
1602044008680109101800081008001230032005280112200800122001600241160000100
1602044011280110101800091008001330032005680113200800132001600241160000100
1602044008680109101800081008001230032005280112200800122001600241160000100
1602044008680109101800081008001230032005280112200800122001600241160000100
1602044008680109101800081008001230032005280112200800122001600241160000100
1602044008680109101800081008001230032005280112200800122001600241160000100
1602044008680109101800081008001230032005280112200800122001600241160000100
1602044008680109101800081008001230032005280112200800122001600241160000100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.5053

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)
1600244387980019118000810800123032005280022208001220160026116000010
1600244124980020118000910800133032000080010208000020160000116000010
1600244042080011118000010800003032000080010208000020160000116000010
1600244042780011118000010800003032000080010208000020160000116000010
1600244041780011118000010800003032000080010208000020160000116000010
1600244042380011118000010800003032000080010208000020160000116000010
1600244040080011118000010800003032000080010208000020160000116000010
1600244040080011118000010800003032000080010208000020160100116000010
1600244047080011118000010800003032000080010208000020160000116000010
1600244043880011118000010800003032000080010208000020160000116000010

Test 5: throughput

Count: 16

Code:

  suqadd v0.2d, v16.2d
  suqadd v1.2d, v16.2d
  suqadd v2.2d, v16.2d
  suqadd v3.2d, v16.2d
  suqadd v4.2d, v16.2d
  suqadd v5.2d, v16.2d
  suqadd v6.2d, v16.2d
  suqadd v7.2d, v16.2d
  suqadd v8.2d, v16.2d
  suqadd v9.2d, v16.2d
  suqadd v10.2d, v16.2d
  suqadd v11.2d, v16.2d
  suqadd v12.2d, v16.2d
  suqadd v13.2d, v16.2d
  suqadd v14.2d, v16.2d
  suqadd v15.2d, v16.2d
  movi v16.16b, 17

(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)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)
160204801021601051011600041001600080300064004416011020001600142003200241160000100
160204800541601051011600041001600080300064003616010820001600122003200281160000100
160204800351601051011600041001600080300064003616010820001600122003200241160000100
160204800351601051011600041001600080300064003616010820001600122003200241160000100
160204800351601051011600041001600080300064003616010820001600122003200241160000100
160204800351601051011600041001600080300064003616010820001600122003200241160000100
160204800351601051011600041001600080300064003616010820001600122003200241160000100
160204800351601051011600041001600080300064003616010820001600122003201261160000100
160204800351601051011600041001600080300064003616010820001600122003200241160000100
160204800351601051011600041001600080300064003616010820001600122003200241160000100

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)
160024801251600171116000610160010306400361600182016001220320000116000010
160025801221600481116003710160045306400001600102016000020320000116000010
160024800351600111116000010160000306400001600102016000020320000116000010
160025800711600551116004410160056306400001600102016000020320000116000010
160024800351600111116000010160000306400001600102016000020320000116000010
160024800351600111116000010160000306400001600102016000020320000116000010
160024800411600111116000010160000306400001600102016000020320000116000010
160024800631600111116000010160000306400001600102016000020320126116000010
160024800351600111116000010160000306400001600102016000020320126116000010
160024800351600111116000010160000306400001600102016000020320000116000010