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

ORN (register, 32-bit)

Test 1: uops

Code:

  orn w0, w0, w1
  mov x0, 1
  mov x1, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 1.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 0.000

retire uop (01)cycle (02)031e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst int alu (97)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100410357061862251000100010001691610351035728386810001000200010354111100110000073141119371000100010361036103610361036
100410358061862251000100010001691610351035728386810001000200010354111100110000073141119371000100010361036103610361036
100410358082862251000100010001691610351035728386810001000200010354111100110000073141119371000100010361036103610361036
100410357061862251000100010001691610351035728386810001000200010354111100110000073141119371000100010361036103610361036
100410358061862251000100010001691610351035728386810001000200010354111100110000073141119371000100010811036103610361036
100410358061862251000100010001691610351035728386810001000200010354111100110000073141119371000100010361036103610361036
100410358061862251000100010001691610351035728386810001000200010354111100110001073141119371000100010361036103610361036
100410358061862251000100010001691610351035728386810001000200010354111100110000073141119371000100010361036103610361036
100410358061862251000100010001691610351035728386810001000200010354111100110000073141119371000100010361036103610361036
100410358061862251000100010001691610351035728386810001000200010354111100110001073141119371000100010361036103610361036

Test 2: Latency 1->2

Code:

  orn w0, w0, w1
  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)03181e1f3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d tlb access (a0)l1d tlb miss (a1)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204100357700061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100001071033711994110000101001003610036100361003610036
10204100357800061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
102041003578012061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
102041003578015061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357800061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357800061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357806061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357800061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357709061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357800061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)031e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1002410035781267986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100964024122994010000100101003610036100361003610036
100241003578085986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361008210036
1002410035780619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101002464024122994010000100101003610036100361003610036
100241003578061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
1002410035780619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101039064024122994010000100101003610036100361003610036
1002410035780619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101034064024122994010000100101003610036100361003610036
100241003578061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003577061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100664024122994010000100101003610036100361003610036
100241003577061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010107664024122994010000100101003610036100361003610036
100241003577061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036

Test 3: Latency 1->3

Code:

  orn w0, w1, w0
  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)03l2 tlb miss data (0b)191e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d cache writeback (a8)acbranch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204100357800025198772510100101001011787686049695510035100358607787341011710240202801003541111020110099100101001000011172001600996510000101001003610036100361003610036
1020410035780006198772510100101001010088664149695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
10204100357700070498772510100101001010088664149695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
1020410035770106198772510100101001010088664149695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
10204100357800010398772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
10204100357800011798772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
10204100357800010398772510100101001010088664149695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
1020410035780008298772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
1020410035780006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036
1020410035780006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000000071013711994110000101001003610036100361003610036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)0318191e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100241003577000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064064122994010000100101003610036100361003610036
100241003578000739863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003578000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003578003619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241008178000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003578000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
1002410035780005369863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003578000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010101064024122994010000100101003610036100361003610036
100241003578010619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100364024122994010000100101003610036100361003610036
100241003577000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036

Test 4: throughput

Count: 8

Code:

  orn w0, w8, w9
  orn w1, w8, w9
  orn w2, w8, w9
  orn w3, w8, w9
  orn w4, w8, w9
  orn w5, w8, w9
  orn w6, w8, w9
  orn w7, w8, w9
  mov x8, 9
  mov x9, 10

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.1673

retire uop (01)cycle (02)031e3f51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)a9accdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80204134191040982580100801008010040050004910306133861338633233334180100802001602001338639118020110099100801001000000005110219111338380000801001338713387133871338713387
802041338610303525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000370305110119111338380000801001338713387133871338713387
80204133861030352580100801008010040050014910306133861338633233334180100802001602001338639118020110099100801001000000005110119111338380000801001338713387133871338713387
802041338610302542580100801008010040050004910306133861338633233334180100802001602001338639118020110099100801001000000005110119111338380000801001338713387133871338713387
8020413386103035258010080100801004005000491030613386133863323333418010080200160200133863911802011009910080100100000256505110119111338380000801001338713387133871338713387
80204133861030352580100801008010040050014910306133861338633233334180100802001602001338639118020110099100801001000010005110119111338380000801001338713387133871338713387
80204133861040352580100801008010040050004910306133861338633233334180100802001602001338639118020110099100801001000000005110119111338380000801001338713387133871338713387
80204133861030352580100801008010040050004910306133861338633233334180100802001602001338639118020110099100801001000010305110119111338380000801001338713387133871338713387
80204133861040352580100801008010040050004910306133861338633233334180100802001602001338639218020110099100801001000000305110119111338380000801001338713387133871338713387
80204133861040352580100801008010040050004910306133861338633233334180100802001602001338639118020110099100801001000010005110119111338380000801001338713387133871338713387

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.1671

retire uop (01)cycle (02)031e1f3f51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)accfd2d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
8002413387103003525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119111336880000800101337213372133721337213372
8002413371103003525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119111336880000800101337213372133721337213372
8002413371103003525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119111336880000800101337213372133721337213372
8002413371104008625800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119111336880000800101337213372133721337213372
8002413371104003525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119111336880000800101337213372133721337213372
8002413371103003525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010200050200119111336880000800101337213372133721337213372
80024133711040051025800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119211336880000800101337213372133721337213372
8002413371103003525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119111336880000800101337213372133721337213372
80024133711031203525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010000050200119111336880000800101337213372133721337213372
8002413371103003525800108001080010400050149102911337113371333033348800108002016002013371391180021109108001010001050200145111336880000800101337213372133721337213372