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, lsl, 64-bit)

Test 1: uops

Code:

  orr x0, x0, x1, lsl #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)03l2 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
10042035150061100017352520002000100032570020352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035150061100017352520002000100032570020352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035150061100017352520002000100032570020352035157531842100010002000203542111001100000731671117812000100020362036203620362036
100420351500611000173525200020001000325700203520351575318421000100020002035421110011000048731671117812000100020362036203620362036
10042035150061100017352520002000100032570020352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035160061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035150061100017352520002000100032570020352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035150061100017352520002000100032570020352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035150061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036
10042035170061100017352520002000100032570120352035157531842100010002000203542111001100000731671117812000100020362036203620362036

Test 2: Latency 1->2

Code:

  orr x0, x0, x1, lsl #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)031e3f4c4d51schedule 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 tlb miss (a1)l1d cache writeback (a8)acbranch mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1020420035150061100001980325201002010010100185342491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
10204200351500155100001980325201002010010100185342491695520035200351842931870010100102002020020035421110201100991001010010000000710159011979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
102042003515006110000198032520100201001010018534249169552003520035184293187001010010200202002003542111020110099100101001000001140710159111979120000101002003620036200362003620036
10204200351500151100001980325201002010010100185342491695520035200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342491695520068200351842931870010100102002020020035421110201100991001010010000000710159111979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342491695520035200351842931870010100102002020020035421110201100991001010010000100710159111979120000101002003620036200362003620036
10204200351500611000019803252010020100101001853424916955200352003518429318700101001020020200200354211102011009910010100100000300710159111979120000101002003620036200362003620036

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0035

retire uop (01)cycle (02)0309191e1f3f4c4d51schedule 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)9fld unit uop (a6)l1d cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100242003515000006110000197432520010200101001018531004916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000006110000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000006110000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000006110000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000121086110000197432520010200101001018531004916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
1002420035150000053610000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000006110000197432520010200101001018531004916955200352003518451318718100101002020020200354211100211091010010100000640263221987720000100102003620036200362003620036
100242003515000006110000197432520010200101001018531014916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000006110000197432520010200101001018531004916955200352003518451318718105941002020020200354211100211091010010100000640263221979220000100102003620036200362003620036
100242003515000006110000197432520010200101001018531004916955200352003518451318718100101002020020200354211100211091010010100000640263221979220000100102003620036200362003620036

Test 3: Latency 1->3

Code:

  orr x0, x1, x0, lsl #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)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)9fl1d cache writeback (a8)a9accfd0d5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10204200351500191100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100259111979120000101002003620036200362003620036
1020420035155061100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001002007100159111979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100159111979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100159111979120000101002003620036200362003620036
10204200351500124100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001002067100159111979120000101002003620036200362003620036
10204200351500251100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100159111979120000101002003620036200362003620036
10204200351500105100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100159111979120000101002003620036200362003620036
1020420035150061100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100159111979120000101002003620036200362003620036
10204200351500168100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100159111979120000101002003620036200362003620036
10204200351500103100001980325201002010010100185342049169552003520035184293187001010010200202002003542111020110099100101001000007100159111979120000101002003620036200362003620036

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)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
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
1002420035150228611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
10024200351500611000019743252001020010100101853104916955200352003518451318718100101002020020200354211100211091010010100640263221979220000100102003620036200362003620036
1002420035150213611000019743252001020010100101853104916955200352003518451318718105931002020020200354211100211091010010100640263221979220000100102003620036200362008120036

Test 4: throughput

Count: 8

Code:

  orr x0, x8, x9, lsl #17
  orr x1, x8, x9, lsl #17
  orr x2, x8, x9, lsl #17
  orr x3, x8, x9, lsl #17
  orr x4, x8, x9, lsl #17
  orr x5, x8, x9, lsl #17
  orr x6, x8, x9, lsl #17
  orr x7, x8, x9, lsl #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)18191e1f3f4c4d51schedule 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 tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)a9acc2cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
80204267322010000001106800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051102221126717160000801002672626726267262672626780
8020426725200000000602800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051101221126717160000801002672626726267262672626726
802042672520000000010408000026094251601001601008010016431804923645267252672516615316677801008020016020026725391180201100991008010010000000620530971043427148161512801002713527191271972719827197
802042719220301891056704197380654240202181617781615938179819082114924172271992713916632771686282017819291636682713639818020110099100801001004221257680053293633427020160000801002672626726267262672626726
8020426725200000000677800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051101221126717160000801002672626726267262672626726
8020426725200000000565800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051101221126717160000801002672626726267262672626726
8020426725200000000680800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051101221126717160000801002672626726267262672626726
8020426725200000000574800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051101221126717160000801002672626726267262672626726
8020426725200000000641800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051101221126717160000801002672626726267262672626726
8020426725200000000554800002609425160100160100801001643181492364526725267251661531667780100802001602002672539118020110099100801001000000000051101221126717160000801002672626726267262672626726

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)033a3f4c4d51schedule 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)dbddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
8002426755200061800002128025160010160010800101631421492363126711267111662331668580010800201600202671139118002110910800101000502015220181826704160000800102671226712267122671226712
800242671120006180000212802516001016001080010163142149236312671126711166233166858001080020160020267113911800211091080010100050201422091826704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631421492363126711267111662331668580010800201600202671139118002110910800101000502018220151826704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631420492363126711267111662331668580010800201600202671139118002110910800101000502015220181026704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631421492363126711267111662331668580010800201600202671139118002110910800101000502015400181626704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631421492363126711267111662331668580010800201600202671139118002110910800101000504514220171026704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631420492363126711267111662331668580010800201600202671139118002110910800101000502014220181026704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631421492363126711267111662331668580010800201600202671139118002110910800101000502010220181126704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631420492363126711267111662331668580010800201600202671139118002110910800101000502018220181726704160000800102671226712267122671226712
8002426711200061800002128025160010160010800101631421492363126711267111662331668580010800201600202671139118002110910800101000502013220181326704160000800102671226712267122671226712