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

BIC (register, 32-bit)

Test 1: uops

Code:

  bic 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10041035806186225100010001000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035806186225100010221000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035808486225100010001000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035806186225100010001153169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035806186225100010001000169161035103572838681000100020001035411110011000119073141119371000100010361036103610361036
100410358906186225100010001000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035706186225100010001000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035808286225100010001000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035806186225100010001000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036
10041035896186225100010001000169161035103572838681000100020001035411110011000073141119371000100010361036103610361036

Test 2: Latency 1->2

Code:

  bic 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)0318191e1f3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)696a6d6emap stall dispatch (70)int prf full (71)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
10204100357500006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
10204100357500006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
10204100357500006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
10204100357500006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000971013711994110000101001003610036100361003610036
10204100357500006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
10204100357500006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575000044198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001001071013711994110000101001003610036100361003610036
10204100357500006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575000061987725101001010010100886644969551003510035858003872210100102002020010035411110201100991001010010001271013711994110000101001003610036100361003610036
10204100357600006198772510100101001010088664496955100351003585800387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)03mmu table walk instruction (07)1e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)6061696a6d6emap stall dispatch (70)int prf full (71)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)accfd0d2d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100241003575006198632510010100101001088784104969551003510035860203874010010100202002010035411110021109101001010006420093934994110000100101003610036100361003610036
100241003575106198632510010100101001088784104969551003510035860203874010010100202002010035411110021109101001010006400024122994010000100101003610036100361003610036
100241003575066198632510010100101001088784004969551003510035860203874010010100202002010035411110021109101001010006400024122994010000100101003610036100361003610036
1002410035750936198632510010100101001088784004969551003510035860203874010010100202002010035411110021109101001010006400024122994010000100101003610036100361003610036
100241003575006198632510010100101001088784004969551003510035860203874010010100202002010035411110021109101001010006400024124994010000100101003610082100361003610036
100241003576006198662510010100101001088784004969551003510035860203874010010100202002010035411110021109101001010006400024122994010000100101003610036100361003610036
100241003576006198632510010100101001088784104969551003510035860203874010010100202002010035411110021109101001010006400024122994010000100101003610036100361003610036
100241003576006198632510010100101001088784104969551003510035860203874010010100202002010035411110021109101001010006400024123994010000100101003610036100361003610036
1002410035750126198632510010100101001088784104969551003510035860203874110012100202002010035411110021109101001010106400024122994010000100101003610036100361003610036
10024100357601206198662510010100101001088784104969551003510035860303874210012100202002010035411110021109101001010006400024122994010000100101003610036100361003610036

Test 3: Latency 1->3

Code:

  bic 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)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)9faccfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102041003575082987744101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100071013710994110000101001003610036100361003610036
102041003575061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036
102041003575061987725101001010010292886644969551003510035858038722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886644969551003510035858038722101001020020200100354111102011009910010100100371013711994110000101001003610036100361003610036
1020410035750619877251010010100101008866449695510035100358580228722101001020020200100354111102011009910010100100071013711994110000101001003610036100361003610036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)03mmu table walk data (08)09l2 tlb miss data (0b)1e3f4d51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100241003575000061986325100101001010010887841496955100351003586023874010010100202002010035411110021109101001010000064034122994010000100101003610036100361003610036
100241003575000061986325100101001010010887841496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
100241003575000084986325100101001010010887841496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
100241003576000061986325100101001010010887841496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
100241003575000061986325100101001010010887840496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
100241003575000661986325100101001010010887841496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
100241003575000061986325100101001010010887840496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
100241003575000061986325100101001010010887841496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
100241003575000061986325100101001010010887840496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036
10024100357500024661986325100101001010010887841496955100351003586023874010010100202002010035411110021109101001010000064024122994010000100101003610036100361003610036

Test 4: throughput

Count: 8

Code:

  bic w0, w8, w9
  bic w1, w8, w9
  bic w2, w8, w9
  bic w3, w8, w9
  bic w4, w8, w9
  bic w5, w8, w9
  bic w6, w8, w9
  bic 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)03mmu table walk data (08)18191e1f3f51schedule 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)9fld unit uop (a6)l1d cache writeback (a8)acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
8020413429104010003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110219111338380000801001338713387133871338713387
8020413386100000003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387
8020413386100000003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387
8020413386101000003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387
8020413386100000003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110219111338380000801001338713387133871338713387
8020413386100000005625801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387
8020413386101000003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387
8020413386100000009825801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387
8020413386100000003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387
8020413386100000003525801008010080100400500049103061338613386332333341801008020016020013386391180201100991008010010000005110119111338380000801001338713387133871338713387

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03l2 tlb miss instruction (0a)1e3f51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)5f60696a6d6emap 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)ld unit uop (a6)st unit uop (a7)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
800241338610001835258001080010800104000502149102911337113371333033348800108002016083813371391180021109108001010000005021219251336880000800101337213372133721337213372
80024133711000035258001080010800104000503149102911337113371333033348800108002016002013371391180021109108001010000005020419551336880000800101337213372133721337213372
80024133711000035258001080010800104000503149102911337113371333033348800108015116002013371391180021109108001010000005021319431336880000800101337213372133721337213372
80024133711001035258001080010800104000503149102911337113371333033348800108002016002013371391180021109108001010000005021319431336880000800101343313372133721337213372
80024133711000335258001080010800104000503049102911337113371333033348800108002016002013371391180021109108001010000005021419451336880000800101337213372133721337213372
80024133711000035258001080010800104000503149102911337113371333033348800108002016002013371391180021109108001010000005021319441336880390800101337213372133721337213372
800241337110001235258001080010800104000503149102911337113371333033348800108002016002013371391180021109108001010000005021419531336880000800101337213372133721337213372
80024133711000035258001080010800105362223149102911337113371333033348800108002016002013371391180021109108001010000005021319551336880000800101337213372133721337213372
80024133711000035258001080010800104000504149102911337113371333033348800108002016002013371391180021109108001010000005021419551336880000800101337213372133721337213372
800241337110001235258001080010800104000503149102911337113371333033348800108002016002013371391180021109108001010000005021319441336880000800101337213372133721337213372