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

EOR (register, ror, 32-bit)

Test 1: uops

Code:

  eor 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)03mmu table walk instruction (07)mmu table walk data (08)l2 tlb miss data (0b)1e3f4c4d51schedule 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)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1004203515000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
1004203515000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
1004203516000061100017352520002000100032570120352035157731842100010002000203542111001100000731671117812000100020362036203620362036
1004203515000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035150006361100017352520002000100032570120352035157531842100010002000203542111001100000731671217812000100020362036203620362036
1004203515000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
1004203515000061100017352520002000100032570120352035157531846100010002000203542111001100000731671117812000100020362036203620362036
1004203515100061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
1004203515100061100017352520002000100032570120352035157531842100010002000203542111001100000731631117812000100020362036203620362036
1004203515000061100017352520002000100032570020352035157531842100010002000203542111001100000731631117812000100020362036203620362036

Test 2: Latency 1->2

Code:

  eor 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)l2 tlb miss data (0b)1e3f4c4d51schedule 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)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204200351500006610000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
102042003514900126110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
102042003515500061100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000069710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100100710159111979120000101002003620036200362003620036
10204200351500036110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010010270710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03mmu table walk data (08)l2 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 access (a0)ld unit uop (a6)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
100242003514900002791000019743252001020010100101853100491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620036
1002420035150005106941000019743252001020010100101853100491695520035200351845103187181001010216200202003542111002110910100101000000640263221979220000100102003620036200362003620036
100242003515000008081000019743252001020010100101853101491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620036
10024200351500000611000019743252001020010100101853100491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620036
10024200351500000611000019743252001020010100101853100491695520035200351845173187181001010020200202003542111002110910100101000100640263221979220000100102003620036200362003620036
100242003515000002511000019743252001020010100101853100491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620067
10024200351500000611000019743252001020010100101853100491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620036
100242003515000006961000019743252001020010100101853101491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620036
100242003515000001241000019743252001020010100101853101491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620036
100242003515000001261000019743252001020010100101853101491695520035200351845103187181001010020200202003542111002110910100101000000640263221979220000100102003620036200362003620036

Test 3: Latency 1->3

Code:

  eor 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)03mmu table walk data (08)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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204200351500000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
1020420035150004080611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000390611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159311979120000101002003620036200362003620036
10204200351500000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010024141710159111979120000101002003620036200362003620036
10204200351510000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000710159111979120000101002003620036200362003620036
10204200351500000611000019803252010020100101001853421491695520035200351842931874510100102002020020035421110201100991001010010003710159111979120000101002003620036200362003620036
10204200351500000611000019803252010020100101001853421491695520035200351842931870010100102002020020035421110201100991001010010020710159111979120000101002003620036200362003620036
102042003515000001031000019803252010020100101001853421491695520035200351842931870010100107052020020035421110201100991001010010000710159111979120000101002003620036200362003620036
102042003515000002311000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010020710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03093f4c4d51schedule 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 tlb access (a0)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100242003515806110000197432520010200101001018531014916955020035200351845131871810010100202002020035421110021109101001010050640263221979220000100102003620036200362003620036
1002420035150095010000197432520010200101001018531014916955020035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150090610000197432520010200101001018531014916955020035200351845131871810010100202002020035422110021109101001010000640263221979220000100102003620036200362003620036
1002420035150089010000197432520010200101001018531014916955020035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150012410000197432520010200101001018531014916955020035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
10024200351500145100001974325200102001010010185310149169550200352003518451318718100101002020020200354211100211091010010100296640263221979220000100102003620036200362003620036
100242003515006110000197432520010200101001018531004916955020035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
100242003515006110000197432520010200101001018531014916955020035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
1002420035150014710000197432520010200101001018531014916955020035200351845131871810010100202002020035421110021109101001010034171640263221979220000100102003620036200362003620036
1002420035150012610000197432520010200101001018531014916955020035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036

Test 4: throughput

Count: 8

Code:

  eor w0, w8, w9, ror #17
  eor w1, w8, w9, ror #17
  eor w2, w8, w9, ror #17
  eor w3, w8, w9, ror #17
  eor w4, w8, w9, ror #17
  eor w5, w8, w9, ror #17
  eor w6, w8, w9, ror #17
  eor 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 data (08)l2 tlb miss data (0b)1e3f4c4d51schedule 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 tlb access (a0)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
802042677220000061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010000051105224426717160000801002672626726267262672626726
802042672520100061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010002051104224426717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010000051104224426717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010000051104224426717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010000051104224326717160000801002672626726267262672626726
8020426725200000618000026094251601001601008010016431849236452672526725166153166778010080200160200267253911802011009910080100100019351104224426717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643184923645267252672516615316702801008020016020026725391180201100991008010010000351103224426717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010000051103224426717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010000051104224426717160000801002672626726267262672626726
802042672520000061800002609425160100160100801001643184923645267252672516615316677801008020016020026725391180201100991008010010000051104224426717160000801002672626726267262672626726

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)mmu table walk data (08)1e3f4c4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)6067696a6d6emap 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)d9dbddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
8002426717200000187800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020272200222426704160000800102671226712267122671226712
8002426711200000113800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020262200212626753160000800102671226712267122671226712
80024267112000105188000021280251600101600108001016314210492363126711267111662324166858001080020160020267113911800211091080010100005020212200271626704160000800102671226712267122671226712
800242671120000061800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020282201222726704160000800102671226712267122671226712
8002426711200000510800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020282200272726704160000800102671226712267122671226712
8002426711200000550800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020272200282726704160261800102671226712267122671226712
8002426711200000592800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020282200212826704160000800102671226712267122671226712
8002426711200100629800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020162200281726704160000800102671226712267122671226712
8002426711200000641800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100205020142200261426704160000800102671226712267122671226712
8002426711200000601800002128025160010160010800101631421049236312671126711166233166858001080020160020267113911800211091080010100005020282200142826704160000800102671226712267122671226712