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, ror, 32-bit)

Test 1: uops

Code:

  bic w0, w0, w1, ror #17
  mov x0, 1
  mov x1, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 2.000

Integer unit issues: 2.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 0.000

retire uop (01)cycle (02)03091e3a3f4c4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)606d6emap 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)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1004203515133681000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203515003681000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203515003681000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203515003681000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203515042631121000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203515003681000173525200020001000325701203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203515003681000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036
10042035150183681000173525200020001000325701203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203516003681000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036
1004203516003681000173525200020001000325700203520351575318421000100020002035421110011000795675517812000100020362036203620362036

Test 2: Latency 1->2

Code:

  bic w0, w0, w1, ror #17
  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03mmu table walk data (08)1e3f4c4d5051schedule 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
10204200351500061100001980320019252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
1020420035150006110000198030252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010003710159111979120000101002003620036200362003620036
1020420035150106110000198030252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
1020420035149006110000198030252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500053610000198030252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010029710159111979120000101002003620036200362003620036
1020420035150006110000198030252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
1020420035150006110000198030252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500061100001980302520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100069710159111979120000101002003620036200362003620036
1020420035150006110000198030252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500061100001980302520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100048710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03l2 tlb miss data (0b)1e1f3f4c4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)6061696a6d6emap 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)acc2cfd0d2d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200362003620036
100242003515000038410000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010009064000363331979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200362003620036
10024200351490006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010000064000363331979220000100102003620036200822003620036
10024200351500006110000197432520010200101001018531010491695520035200351845131871810010100202002020035421110021109101001010402003064000363331981020000100102008120036200362003620036

Test 3: Latency 1->3

Code:

  bic w0, w1, w0, ror #17
  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)031e3f4c4d51schedule 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)branch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102042003515001031000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515001031000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515003171000019803252010020100101001853420491695520035200351842931870010100102002052220035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515001491000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515002751000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500611000019803252010020100101001853420491695520035200351842931870010100102002020020081421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515005301000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03191e3f4c4d51schedule 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
10024200351510061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500961100001974325200102003210010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101003640263221979220000100102003620036200362003620036
10024200351500061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
100242003515000103100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
100242003515000103100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036

Test 4: throughput

Count: 8

Code:

  bic w0, w8, w9, ror #17
  bic w1, w8, w9, ror #17
  bic w2, w8, w9, ror #17
  bic w3, w8, w9, ror #17
  bic w4, w8, w9, ror #17
  bic w5, w8, w9, ror #17
  bic w6, w8, w9, ror #17
  bic w7, w8, w9, ror #17
  mov x8, 9
  mov x9, 10

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.3341

retire uop (01)cycle (02)03mmu table walk instruction (07)mmu table walk data (08)l2 tlb miss data (0b)18191e1f3a3f4c4d51schedule 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 access (a0)l1d tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
802042676920100000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000000051103221126717160000801002672626726267262672626726
802042672520000000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000000051101221126717160000801002672626726267262672626726
802042672520000000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010002010651101221126717160000801002672626726267262672626726
802042672520000000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000000051101221126717160000801002672626726267262672626726
8020426725200000000002318000026094251601001601008032116431814923645267252672516615316677801008020016020026725391180201100991008010010000000051101222126717160000801002672626726267262672626726
802042672520000000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000000051101221126717160000801002672626726267262672626726
802042672520000000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000000051101221126717160000801002672626726267262672626726
802042672520000000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725392180201100991008010010000000051101222126717160000801002672626726267262672626726
8020426725200000000001878000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000000051101221126717160000801002672626726267262672626726
8020426725200000000001248000025693251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000000051101222126717160000801002672626726267262672626726

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.3339

retire uop (01)cycle (02)0318191e1f3f4c4d51schedule 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)a9acc2cfd2l1i cache miss demand (d3)d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
800242673420000006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000305020811522121226704160000800102671226712267122671226712
800242671120000006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020001422141426704160000800102671226712267122671226712
800242671120000006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020001022111326704160000800102671226712267122671226712
800242671120000006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020101022131526704160000800102671226712267122671226712
800242671120000006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020201222141526704160000800102671226712267122671226712
800242671119900006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020101522161326704160000800102671226712267122671226712
800242671119900006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020101222131126704160000800102671226712267122671226712
800242671120000006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020001022151726704160000800102671226712267122671226712
800242671120000006180000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020001622161226704160000800102671226712267122671226712
8002426711200000053680000212802516001016001080010163142492363126711267111662331668580010800201600202671139118002110910800101000005020101522151526704160000800102671226712267122671226712