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, asr, 32-bit)

Test 1: uops

Code:

  bic w0, w0, w1, asr #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)031e1f3f4c4d51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1004203515006110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
10042035150806110001735252000200010003257012035203515753184210001000200020354211100110000731671117812000100020362036203620362036
10042035150061100017352520002000100032570020352035157531842100010002000203542111001100015731671117812000100020362036203620362036
1004203515006110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
1004203516006110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
1004203515006110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
1004203515006110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
1004203515006110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036206920362036
1004203515006110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
1004203515906110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036

Test 2: Latency 1->2

Code:

  bic w0, w0, w1, asr #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)0318191e1f3f4c4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6b6d6emap 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)9faccdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204200351500022806110000198032520100201001010018534214916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003514900006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
1020420035150002106110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515003006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000006110000198032520100201001010018534204916955020035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)0309l2 tlb miss data (0b)18191e1f3f4c4d51schedule 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 cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10024200351500000001051000019743252001020010100101853100491695520035200351845131877810010100202002020035421110021109101001010003640263221979220000100102003620036200362003620036
10024200351500000001471000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150000000821000019785252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
100242003514900000132821000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500000005821000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010010640263221979220000100102003620036200362003620036
1002420035150000000611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150000000611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150000000611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500000002081000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150000000841000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036

Test 3: Latency 1->3

Code:

  bic w0, w1, w0, asr #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)03181e3f4c4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap 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 tlb access (a0)l1d tlb miss (a1)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204200351500061100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500061100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500061100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500061100001980325201002010010100185342049169552003520035184297318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
102042003515001561100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500061100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
102042003515042461100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351490661100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500061100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351490061100001980325201002010010100185342049169552003520035184290318700101001020020200200354211102011009910010100100003710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03191e1f3f4c4d51schedule 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
100242003515010082100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640463341979220022100102003620036200362003620036
100242003515000082100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640463341979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640363341979220000100102003620036200362003620036
100242003515000061100001974325200102001010157185310049139182003520035184513187181001010020200202003542111002110910100101000640463431979220000100102003620036200812003620036
1002420035150000126100001974325200102001010010185310049169552003520035184513187181001010192200202003542111002110910100101000640363441979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640363441979220000100102003620036200812003620036
100242003515000061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640463431979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640363351979220000100102003620036200692003620036
1002420035150000103100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640463341979220000100102003620036200362003620036
100242003515000084100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101000640363431979220000100102003620036200362003620036

Test 4: throughput

Count: 8

Code:

  bic w0, w8, w9, asr #17
  bic w1, w8, w9, asr #17
  bic w2, w8, w9, asr #17
  bic w3, w8, w9, asr #17
  bic w4, w8, w9, asr #17
  bic w5, w8, w9, asr #17
  bic w6, w8, w9, asr #17
  bic w7, w8, w9, asr #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)031e1f3f4c4d51schedule 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)l1d cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80204267692000072680000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051102221126717160000801002672626726267262672626726
8020426725200006180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
80204267252001806180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
8020426725200009080000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
8020426725200006180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
8020426725201006180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
8020426725200006180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
80204267252001506180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
8020426725200606180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726
8020426725200006180000260942516010016010080100164318149236452672526725166153166778010080200160200267253911802011009910080100100000051101221126717160000801002672626726267262672626726

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03mmu table walk instruction (07)191e3f4c4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)5f6067696a6d6emap 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)accdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
800242673420000014580000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101000050202122121026704160000800102671226712267122671226712
80024267112000006180000212802516001016001080010163142000492363126711267111662331669380010800201600202671139118002110910800101000050201122151026704160000800102671226712267122671226712
80024267111990006180000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101000050201122141126704160000800102671226712267122671226712
80024267112000006180000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101000050201122121326704160000800102671226712267122671226712
80024267112000006180000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101000050201122151226704160000800102671226712267122671226712
80024267702000006180000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101000050201222141226704160000800102671226712267122671226712
80024267112000008280000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101000050201122121226704160000800102671226712267122671226712
80024267112000006680000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101000050201322161026704160000800102671226712267122671226712
80024267112000006180000212802516001016001080010163142110492363126711267111662331668580010800201600202671139118002110910800101000050201322161226704160000800102671226712267122671226712
800242671120000072680000212802516001016001080010163142000492363126711267111662331668580010800201600202671139118002110910800101010050201122141526704160000800102671226712267122671226712