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, 64-bit)

Test 1: uops

Code:

  bic x0, x0, x1, 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)03181e3f4c4d51schedule 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
1004203516036110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
1004203515006110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
1004203516006110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
1004203515006110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020812036203620362036
10042035150156110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
1004203515006110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
1004203516006110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
1004203516006110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
1004203516006110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036
10042035150246110001735252000200010003257020352035157531842100010002000203542111001100000732672217812000100020362036203620362036

Test 2: Latency 1->2

Code:

  bic x0, x0, x1, 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)03181e1f3f4c4d51schedule 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)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204200351500540611000019803452014520100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035149000611000019803252010020100101001853420491695520173200351842931870010100102002020020035421110201100991001010010000000710159111986620000101002003620036200362003620036
10204200351500120611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010002020710159111979120000101002003620036200362003620036
10204200351500450611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010002100710159111979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010003100710159111979120000101002003620036200362003620036
102042003515003360611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035150030891000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000109710159211979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853421491700120035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036

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)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 miss (a1)l1d cache writeback (a8)acbranch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10024200351500002401000019743252001020010100101853100491695520035200351845103187181001010020200202003542111002110910100101000450640463331979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000640363331979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000640363331979220000100102003620036200362003620036
100242003514900061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000640363331979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000640363331979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000675363331979220000100102003620036200362003620036
1002420035150000124100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000640363331979220000100102003620036200362003620036
100242003514900061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000640363331979220000100102003620036200362003620036
100242003515000061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100100640363331979220000100102003620036200362003620036
100242003514900061100001974325200102001010010185310049169552003520035184510318718100101002020020200354211100211091010010100000640363331979220000100102003620036200362003620036

Test 3: Latency 1->3

Code:

  bic x0, x1, x0, 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)03181e1f3f4c4d51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102042003515006306110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259111979120000101002003620036200362003620036
102042003515000053610000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620069200362003620036
102042003515001206110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
102042003515004806110000198032520100201001010018534214916955200352003518429318714101001020020200200354211102011009910010100100003710159111979120000101002003620036200362003620036
10204200351500908410000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
102042003515001506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100010710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036

1000 unrolls and 10 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)9facbranch cond mispred nonspec (c5)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10024200351500611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310049169552003520035184513187181001010020200202003542111002110910100101012000640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
100242003515001241000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500821000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036

Test 4: throughput

Count: 8

Code:

  bic x0, x8, x9, asr #17
  bic x1, x8, x9, asr #17
  bic x2, x8, x9, asr #17
  bic x3, x8, x9, asr #17
  bic x4, x8, x9, asr #17
  bic x5, x8, x9, asr #17
  bic x6, x8, x9, asr #17
  bic x7, x8, x9, 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)03mmu table walk data (08)181e3f4c4d51schedule 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
802042677320000061800002609425160100160100801001643180492364526725267251661531667780100802001602002672539118020110099100801001000051103221126717160000801002672626726269612672626726
802042672520000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643180492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643180492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643180492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267882672626726
802042672520000061800002609425160100160100801001643180492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726
802042672520000082800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643180492364526725267251661531667780100802001602002672539118020110099100801001000051101221126717160000801002672626726267262672626726

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)031e3f4c4d51schedule 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)9fl1d cache writeback (a8)a9acbranch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80024267512000618000021280251600101600108001016314204923631026711267111662331668580010800201600202671139118002110910800101000005020222221926704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314204923631026711267111662331668580010800201600202671139118002110910800101000005020212292126704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314204923631026711267111662331668580010800201600202671139118002110910800101000005020922212126704160000800102671226769267122677126712
800242671120006180000212802516001016001080010163142049236310267112671116623316685800108002016002026711391180021109108001010000050202122212126704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314204923631026711267111662331668580010804081600202671139118002110910800101000005020212221826704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314204923631026711267111662331668580010800201600202671139118002110910800101000005020212292126704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314204923631026711267111662331668580010800201600202671139118002110910800101000005020212292126704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314204923631026711267111662331668580010800201600202671139118002110910800101000005020212292126704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314204923631026711267111662331668580010800201600202671139118002110910800101000005020212291826704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631420492363102671126711166233166858001080020160020267113911800211091080010100000502092292126704160000800102671226712267122671226712