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

ORR (register, asr, 32-bit)

Test 1: uops

Code:

  orr 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)03mmu table walk instruction (07)l2 tlb miss instruction (0a)181e3a3f4c4d51schedule 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)ld unit uop (a6)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000000794674417812000100020362036203620362036
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000000794674417812000100020362036203620362036
100420351511003681000173525200020001000325700203520351575318421000100020002035421110011000000794674417812022100020362036203620362036
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000000794674417812000100020362036203620362036
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000000794674417812000100020362036203620362036
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000000794674417812000100020362036203620362036
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000060794674417812000100020362036203620362036
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000003794674417812000100020362036203620362036
1004203515110123681000173525200020001000325701203520351575318421000100020002035421110011000000794674417812000100020362036203620362036
100420351511003681000173525200020001000325701203520351575318421000100020002035421110011000000794674417812000100020362036203620362036

Test 2: Latency 1->2

Code:

  orr 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)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 tlb access (a0)l1d cache writeback (a8)branch mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102042003515034410000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710159111983620000101002003620036200362003620036
10204200351509610000198032520100201001010018534204916955200352003518429318700101001020020200200354221102011009910010100100012710159111979120000101002003620079200362003620036
102042003515010310000198032520100201001010018534214916955200352003518429318700101001020020200200814211102011009910010100100000710159111979120000101002003620036200362003620036
1020420035150111410000198032520100201001010018534214916955200352003518429318700102751020020200200354211102011009910010100100100710159111979120000101002003620036200362003620036
102042003515041610000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100010710159111979120000101002003620036200362003620036
102042003515014510000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710159121979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351506110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
102042003515015610000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351496110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)031e3a3f4c4d51schedule 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)ld unit uop (a6)l1d cache writeback (a8)a9accdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100242003515003681000019743252001020010100101853101491695520035200351845131871810010100202002020035941110021109101001010004300064610631051979220022100102003620036200362003620036
100242003515003681000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000000646106310101979220000100102012720036200362003620036
100242003515003681000019743252001020010100101853101491695520035200351845131871810010100202002020035422110021109101001010030200646106310101979220000100102003620036200362003620036
10024200351500368100001974325200102001010010185310149169552003520035184513187181001010020200922003542111002110910100101020430840646196311101979220000100102003620036200362003620036
10024200351500368100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000000064610631051979220000100102003620036200362003620036
1002420035150036810000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000144064610635101979220000100102003620036200362003620036
10024200351500368100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000006064646711111979220000100102003620036200362003620036
100242003515063708100001974325200102001010010185310149169552003520035184513187181001010020200202003542111002110910100101000100064610638101979220000100102003620036200362003620036
1002420035150336810000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100010960646106310101979220000100102003620036200362003620036
1002420035150036810000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000114069010631051979220000100102003620036200362003620036

Test 3: Latency 1->3

Code:

  orr 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)03l2 tlb miss data (0b)191e3f4c4d51schedule 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
10204200351500001991000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221985920000101002003620036200362003620036
1020420035150000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
1020420035150000821000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
10204200351500001031000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036
10204200351500001451000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710259221979120000101002003620036200362003620036

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)696a6b6d6emap 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
10024200351500611000019743252001020010100101853104916955020035200351845131871810010100202002020035421110021109101001010087640363331979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101000640363331979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101000640363331979220000100102003620036200362003620036
1002420035150061100271974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101013640363331979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101000640363431979220000100102003620036200362003620036
10024200351500631100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101000640363331979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101000640363331979220000100102006920036200362003620036
1002420035150061100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101000640363331979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101030640363331979220000100102003620036200362003620036
1002420035150061100001974325200102001010010185310491695502003520035184513187181001010020200202003542111002110910100101000640363331979220000100102003620036200362003620036

Test 4: throughput

Count: 8

Code:

  orr w0, w8, w9, asr #17
  orr w1, w8, w9, asr #17
  orr w2, w8, w9, asr #17
  orr w3, w8, w9, asr #17
  orr w4, w8, w9, asr #17
  orr w5, w8, w9, asr #17
  orr w6, w8, w9, asr #17
  orr 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)03181e3f4c4d51schedule 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)a9acc2cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80204267692000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000051102221126717160000801002672626726267262672626726
80204267252000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000051101221126717160000801002672626790267262672626726
80204267252000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000051101221126717160000801002672626726267262672626726
80204267252010061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000051101221126717160000801002672626726267262672626726
80204267252000061800002609425160100160100801001643181492364526725267911661531667780100802001602002672539118020110099100801001000000051101221126717160000801002672626726267262672626726
802042672520100618000026094251601001601008010016431814923645267252672516615316677801008020016020026725391180201100991008010010000150051101221126717160000801002672626726267262672626726
80204267252000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000051101221126717160000801002672626726267262672626726
80204267252000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000051101221126717160000801002672626726267262672626726
80204267252000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000090051101221126717160000801002672626726267262672626726
80204267252000061800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000051102221126717160000801002672626726267262672626726

1000 unrolls and 10 iterations

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

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)accfd0d2d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
8002426717200618000021280251600101600108001016314214923631267112671116623316685800108002016002026711391180021109108001010005020009226326704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314204923631267112671116623316685800108002016002026711391180021109108001010005020004224526704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314204923631267112671116623316685800108002016002026711391180021109108001010105020005175626704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314214923631267112671116623316685800108002016002026711391180021109108001010005020006225326704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314214923631267112671116623316685800108002016002026711391180021109108001010005020005223526704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314214923631267112671116623316685800108002016002026711391180021109108001010005020003225326704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314204923631267112671116623316685800108002016002026711391180021109108001010005020006225426704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314204923631267112671116623316685800108002016002026711391180021109108001010005020003225326704160000800102671226712267122671226712
8002426711200618000021280251600101600108001016314204923631267112671116623316685800108002016002026711391180021109108001010005020003225326704160000800102671226712267122671226712
8002426711200618007921280251600101600108001016314204923631267112671116623316685800108002016002026711391180021109108001010005020005225326704160000800102671226712267122671226712