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

EOR (register, 32-bit)

Test 1: uops

Code:

  eor 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)03mmu table walk instruction (07)1e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60616d6emap 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)cfd0d2d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1004103580061862251000100010001691601103510357283868100010002000103541111001100007311141119371000100010361036103610361036
1004103570061862251000100010001691610103510357283868100010002000103541111001100007311141119371000100010361036103610361036
1004103570061862251000100010001691610103510357283868100010002000103541111001100007300141219371000100010361036103610361036
1004103580061862251000100010001691601103510357283868100010002000103541111001100007311141119371000100010361036103610361036
1004103580061862251000100010001691611103510357283870100010002000103541111001100007300141119371000100010361036103610361036
1004103580061862251000100010001691601103510357283868100010002000103541111001100007311141119371000100010361036103610361036
1004103580061862251000100010001691601103510357283868100010002000103541111001100007311141119371000100010361036103610361036
1004103580061862251000100010001691601103510357283868100010002000103541111001100007311141119371000100010361036103610361036
1004103580061862251000100010001691601103510357283868100010002000103541111001100007311141119371000100010361036103610361036
1004103580061862251000100010001691601103510357283868100010002000103541111001100007311141119371000100010361036103610361036

Test 2: Latency 1->2

Code:

  eor 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)031e3f4d51schedule 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)9fcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102041003575061987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
1020410035750126987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
102041003575082987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
1020410035750619877251010010100101008866404969551003510035858012872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
102041003575061987725101381010010433886640496955100351003585803872210100104132020010035411110201100991001010010071013711994110000101001003610036100361003610036
1020410035752461987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
102041003575361987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
102041003576361987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010071013711994110000101001003610036100361003610036

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
100241003575061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036
100241003575061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036
100241003575061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036
100241003575082986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036
100241003575061986325100101001010139887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100831008110036
100241003576061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034143994010000100101003610036100361003610036
100241003575061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036
100241003575061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036
100241003575061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036
100241003575061986325100101001010010887844969551003510035860238740100101002020020100354111100211091010010100064034133994010000100101003610036100361003610036

Test 3: Latency 1->3

Code:

  eor 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)03mmu table walk data (08)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 cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102041003575106198772510100101001010088664049695510035100358580387221010010200202001012741111020110099100101001001071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664149695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
10204100357503996198772510100101001010088664149695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664049695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036
102041003575006198772510100101001010088664149695510035100358580387221010010200202001003541111020110099100101001000071013711994110000101001003610036100361003610036

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
1002410035760001039863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064034122994010000100101003610036100361003610036
100241003575100619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100364024122994010000100101003610036100361003610036
1002410035750006579863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
1002410035750006369863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003575000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010101064024122994010000100101003610036100361003610036
1002410035750009769863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003575000619863251001010010100108878414970011003510035860238740100101002020020100354111100211091010010101064024122994010000100101003610036100361003610036
100241003575000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010102664024122994010000100101003610036100361003610036
100241003575000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010101364024122994010000100101003610036100361003610036
100241003575000619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100664024122994010000100101003610036100361003610036

Test 4: throughput

Count: 8

Code:

  eor w0, w8, w9
  eor w1, w8, w9
  eor w2, w8, w9
  eor w3, w8, w9
  eor w4, w8, w9
  eor w5, w8, w9
  eor w6, w8, w9
  eor 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)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
8020413401100000903525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110219111338380000801001338713387133871338713387
80204133861000001503525801008023380100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387
802041338610000021022525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387
8020413386100000003525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387
8020413386100000003525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387
80204133861000004203525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387
8020413386100000603525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338715325
8020413386100000003525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387
802041338610000033603525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387
8020413386100000903525801008010080100400500491030613386133863323333418010080200160200133863911802011009910080100100005110119111338380000801001338713387133871338713387

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03l2 tlb miss data (0b)181e1f3f51schedule 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)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80024133891001000352580010800108001040005000491029113371133713330333488001080020160020133713911800211091080010100005020119111336880000800101337213372133721337213372
800241337110000002662580010800108001040005001491029113371133713330333488001080020160020133713911800211091080010100005020119111336880000800101337213372133721337213372
800241337110000004462580010800108001040005001491029113371133713330333488001080020160020133713911800211091080010100105020119111336880000800101337213372133721337213372
800241337110000002512580010800108001040005000491029113371133713330333488001080020160020133713911800211091080010100005020119111336880259800101337213372133721337213372
80024133711000000352580136802698001040005000491029113371133713330333488001080020160020133713911800211091080010100005020119111336880000800101337213372133721337213372
80024133711000000352580010800108001040005000491029113371133713330333488001080020160020133713911800211091080010100005020119111336880000800101337213372133721337213372
80024133711000000352580010800108001040005001491029113371133713330333488001080020160020133713911800211091080010100005020119111336880000800101337213372133721349313372
8002413371100000035258001080010800104000500149102911337113371333033348800108002016002013371391180021109108001010005085020119111336880000800101337213372133721337213372
800241337110000003812580010800108001040005001491029113371133713330333488001080020160020133713911800211091080010100005020119111336880000800101337213372133721337213372
80024133711000100352580010800108001040005000491029113371133713330333488001080020160020133713911800211091080010100005020119111336880000800101337213372133721337213372