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, lsr, 32-bit)

Test 1: uops

Code:

  orr w0, w0, w1, lsr #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 data (08)l2 tlb miss data (0b)18191e1f3f4c4d51schedule 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
100420351500000061100017352520002000100032570020352035157531842100010002000203542111001100003731671117812000100020362036203620362036
100420351510000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
100420351500000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
100420351500000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
100420351500000061100017352520002000100032570120352035157531842100010002000203542111001100003731711117812000100020362036203620362036
100420351510000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
100420351500000061100017352520002000100032570120352035157531842100010002000203542111001100010731671117812000100020362036203620362036
1004203515000002261100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
100420351500000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
100420351500000061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036

Test 2: Latency 1->2

Code:

  orr w0, w0, w1, lsr #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)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 tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)a9accdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102042003515000069710000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100001000710159111979120000101002003620036200362003620081
1020420035150010611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000280510710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000000710159111979120000101002003620036200362003620036
10204200351500006110000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000000710167111979120000101002003620036200362003620036
102042003515000012410000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000000710159111979120000101002003620036200362003620036
102042003515000061100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000000151710159111979120000101002003620036200362003620036
102042003515000061100001980325201002010010100185342149169552003520035184293187001010010200202002003542111020110099100101001000067030710159111979120000101002003620036200362003620036
10204200351500038210000198032520100201001010018534204916955200352003518429318700101001020020200200354211102011009910010100100000000710159111979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000420180710159111979120000101002003620036200362003620036
1020420035150000611000019803252010020100101001853420491695520035200351842931870010100102002020020035421110201100991001010010000280540710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03mmu table walk data (08)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
1002420035150072611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220023100102003620036200362003620036
100242003515000611000019743442001020010100101853101491695520035200351845131871810010102242002020035421110021109101001010000640263221983820000100102003620036200362003620036
100242003515000611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
100242003515006611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000670263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853100491695520075200351845131871810010100202002020035961110021109101001010000640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010003640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853101491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853100491695520035200351845131871810010100202002020035421110021109101001010000640263221979220000100102003620036200362003620036

Test 3: Latency 1->3

Code:

  orr w0, w1, w0, lsr #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 instruction (0a)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
1020420035150006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351500010310000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
1020420035150006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351500019110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351500010310000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100103710259221979120000101002003620036200362003620036
10204200351500061100001980325201002010010100185342149169552003520035184293187001010010200202002003542111020110099100101001003403710259221979120000101002003620036200362003620036
1020420035150006110000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351500012410000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100000710259221979120000101002003620036200362003620036
10204200351500061100001980325201002010010100185342149169552003520035184293187001010010200202002003542111020110099100101001005603710259221979120000101002003620036200362003620036
102042003515000104910000198032520100201001010018534214916955200352003518429318700101001020020200200354211102011009910010100100100710259221979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)03l1i tlb fill (04)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 cache writeback (a8)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100242003515010611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515006611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853104916955200352003518451318718100101002020428200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
1002420035150002041000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
100242003515000611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036

Test 4: throughput

Count: 8

Code:

  orr w0, w8, w9, lsr #17
  orr w1, w8, w9, lsr #17
  orr w2, w8, w9, lsr #17
  orr w3, w8, w9, lsr #17
  orr w4, w8, w9, lsr #17
  orr w5, w8, w9, lsr #17
  orr w6, w8, w9, lsr #17
  orr w7, w8, w9, lsr #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)0309l2 tlb miss data (0b)18191e1f3f4c4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)67696a6d6emap 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
802042676720000002402128000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051104221126717160000801002672626726267262672626726
8020426725201000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726
80204267252000000001728000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726
80204267252000000001498000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726
80204267252000000001498000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101220126717160000801002672626726267262672626726
8020426725200000000618000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726
80204267252000000006688000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726
80204267252000000004928000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726
80204267252000000001478000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726
80204267252000000001498000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000051101221126717160000801002672626726267262672626726

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03l1i tlb fill (04)091e3f4c4d51schedule 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)a9acc2branch cond mispred nonspec (c5)cfl1i tlb miss demand (d4)d5map dispatch bubble (d6)daddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80024267342001106180000212802516001016001080010164706149236312671126711166233166858001080020160020267113911800221091080010100000005021117220161726704160000800102671226712267122671226712
800242671120011010680000212802516001016001080010164706149236312671126711166233166858001080020160020267113911800211091080010101000105021114220171226704160000800102671226712267122671226712
800242671120011013280000212802516001016001080010163142049236312671126711166233166858001080020160020267113911800211091080010100000005021117220171726704160000800102671226712267122671226712
800242671120011010680000212802516001016001080010164706149236312671126711166233166858001080020160020267113911800211091080010100000005021114220171726704160000800102671226712267122671226712
800242671120011010680000212802516001016001080010164706049236312671126711166233166858001080020160020267113911800211091080010100000005021114220171426704160000800102671226712267122671226712
8002426711199112110680000212802516001016001080010163142149236312671126711166233166858001080020160020267113911800211091080010100000005021114220171426704160000800102671226712267122671226712
800242671120011010680000212802516001016001080010163142049236312671126711166233166858001080020160020267113911800211091080010100000005021117220171726704160000800102671226712267122671226712
800242671120011010680000212802516001016001080010163142049236312671126711166233166858001080020160020267113911800211091080010100000005021110220171726704160000800102671226712267122671226712
800242671120011010680000212802516001016001080010163142049236312671126711166233166858001080020160020267113911800211091080010100000005021116220141726704160000800102671226712267122671226712
800242671120011010680000212802516001016001080010164706049236312671126711166233166858001080020160020267113911800211091080010100000005021117220161626704160000800102671226712267122671226712