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, 64-bit)

Test 1: uops

Code:

  bic x0, x0, x1, 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)031e3f4c4d51schedule 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
100420351506110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257012035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257012035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257002035203515753184210001000200020354211100110000731671117812000100020362036203620362036
100420351506110001735252000200010003257012035203515753184210001000200020354211100110000731671117812000100020362036203620362036

Test 2: Latency 1->2

Code:

  bic x0, x0, x1, 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)033f4c4d51schedule 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 mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102042003514916610000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351508410000198032520100201001010018534214916955200352003518433318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
1020420035150107910000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036

1000 unrolls and 10 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 cache writeback (a8)acc2branch mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100242003515001478878710018197432520010200101001018704504916955200352003518451318718100101002020020200354211100211091010010100300640363221979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100002640263221979220000100102003620036200362003620036
1002420035150012010310000197432520010200101015718704004916955200352003518453318718101561002020360200354221100211091010010102020640263221979220000100102003620036200362003620036
1002420035150012010310000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000010310000197432520010200101001018531004916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
10024200351500006110000197432520034200101001018531004916955200352003518451318718101561002020358200354211100211091010010101640640263221979220000100102003620036200362003620036
10024200351500006110000197432520010200101016718531004916955200352003518451318718100101002020020200804211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000010310000197432520010200101001018531004916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531004916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
10024200351500006110000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036

Test 3: Latency 1->3

Code:

  bic x0, x1, x0, 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)033f4c4d51schedule 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
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03l2 tlb miss data (0b)3f4c4d51schedule 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)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1002420035150061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
1002420035150082100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500147100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010100640263221979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000640263221979220000100102003620036200362003620036

Test 4: throughput

Count: 8

Code:

  bic x0, x8, x9, ror #17
  bic x1, x8, x9, ror #17
  bic x2, x8, x9, ror #17
  bic x3, x8, x9, ror #17
  bic x4, x8, x9, ror #17
  bic x5, x8, x9, ror #17
  bic x6, x8, x9, ror #17
  bic x7, x8, x9, 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)03l2 tlb miss data (0b)191e1f3f4c4d51schedule 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)acbranch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80204267722000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051103222226717160000801002672626726267262672626726
802042672520000006180000260942516010016010080100164318049236452672526725166153166778045680200160200267253911802011009910080100100324051102222226717160000801002672626726267262672626726
80204267252000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051102222226717160000801002672626726267262672626726
80204267252000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051102222226717160000801002672626726267262672626726
80204267252000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051102222226717160000801002672626726267262672626726
80204267252000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051102222226717160000801002672626726267262672626726
80204267252000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051102222226717160000801002672626726267262672626726
80204267252010000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051102222226717160000801002672626726267262672626726
80204267252000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051102222226717160000801002672626726267262672626726
80204267252000000618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000051103222226717160000801002672626726267262672626726

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)5f60696a6d6emap 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
80024267342000618000021280251600101600108001016314201492363126711267111662303166858001080020160020267113911800211091080010100050205224426704160000800102671226712267122671226712
800242671120006180000212802516001016001080375163142014923631267112671116623031668580010800201600202671139118002110910800101002450204223426704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314200492363126711267111662303166858001080020160020267113911800211091080010100050203224426704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314201492363126711267111662303166858001080020160020267113911800211091080010100050204224326704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314201492363126711267111662303166858001080020160020267113911800211091080010100050204223426704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314201492363126711267111662303166858001080020160020267113911800211091080010100050204224326704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314201492363126711267111662303166858001080020160020267113911800211091080010100050204224326704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314201492363126711267111662303166858001080020160020267113911800211091080010100050204224326704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314201492363126711267111662303166858001080020161754267113911800211091080010100050203224426704160000800102671226712267122671226712
80024267112000618000021280251600101600108001016314201492363126711267111662303166858001080020160020267113911800211091080010100050203224326704160000800102671226712267122671226712