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

UMINV (vector, 16B)

Test 1: uops

Code:

  uminv b0, v0.16b
  movi v0.16b, 1
  movi v1.16b, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 0.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 1.000

retire uop (01)cycle (02)0318191e1f3f4e51schedule uop (52)schedule simd uop (54)dispatch simd uop (57)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map simd uop (7e)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst simd alu (9a)l1d tlb miss (a1)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
1004303722000061254725100010001000398160030183037303724143289510001000200030373037111001100000073216112629100030383038303830383038
10043037220000612547251000100010003981601301830373037241432895100010002000303730371110011000036073116112629100030383038303830383038
10043037230000612547251000100010003981601301830373037241432895100010002000303730371110011000003073116112629100030383038303830383038
1004303723000061254725100010001000398160030183037303724143289510001000200030373037111001100000073116112629100030383038303830383038
1004303723000061254725100010001000398160130183037303724143289510001000200030373037111001100000073116112629100030383038303830383038
10043037230012061254725100010001000398160030183037303724143289510001000200030373037111001100000073116112629100030383038303830383038
10043037220012061254725100010001000398160130183037303724143289510001000200030373037111001100000073116112629100030383038303830383038
1004303723000061254725100010001000398160130183037303724143289510001000200030373037111001100001073116112629100030383038303830383038
1004303723000061254725100010001000398160130183037303724143289510001000200030373037111001100000073116112629100030383038303830383038
1004303723000061254725100010001000398160030183037303724143289510001000200030373037111001100000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  uminv b0, v0.16b
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0037

retire uop (01)cycle (02)03mmu table walk data (08)l2 tlb miss data (0b)1e3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
102043003722500726129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
102043003722500034629547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
10204300372240006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
10204300372250006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100171011611296330100001003003830038300383003830038
102043003722500186129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
10204300372250006129547251010010010000100100005004277160130018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
10204300372240006129547251010010010000100100005004277160130018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
10204300372250006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
10204300372250006129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038
102043003722500336129547251010010010000100100005004277160030018300373003728264328745101002001000020020000300373003711102011009910010010000100071011611296330100001003003830038300383003830038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

retire uop (01)cycle (02)03mmu table walk data (08)l2 tlb miss data (0b)18191e1f3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb access (a0)l1d tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
10024300372250000180103295472510010101000010100005042771600300183003730037282863287671001020100002020000300373003711100211091010100001000010006404162329629010000103003830038300383003830038
1002430037225000060061295472510043101000010100005042771600300183003730037282863287671001020100002020000300373003711100211091010100001000000006404164329629010000103003830038300383003830038
100243003722500000061295472510010101000010100005042771600300183003730037282863287671001020100002020000300373003711100211091010100001000000006404164429629010000103003830038300383003830038
1002430037224000042061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000006403164329629010000103003830038300383003830038
1002430037225002030103295472510010101000010100005042771600300183003730037282863287671001020100002020000300373003711100211091010100001000000006404164429629010000103003830038300383003830038
1002430037225000018061295472510010101000010100005042771601300183003730037282863288061001020100002020000300373003711100211091010100001000000006403164429629010000103003830038300383003830038
1002430037225000036061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000006404164629629010000103003830038300383023030038
100243003722500002702778295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000006404164329629010000103003830038300383003830038
1002430037225000039061295472510010101000010100005042771601300183003730037282863287671001020100002020000300373003711100211091010100001000000006403164329629010000103003830038300383003830038
1002430037225000045061295472510010101000010100005042771600300183003730037282863287671001020100002020000300373003711100211091010100001000000006404163429728010000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  uminv b0, v8.16b
  uminv b1, v8.16b
  uminv b2, v8.16b
  uminv b3, v8.16b
  uminv b4, v8.16b
  uminv b5, v8.16b
  uminv b6, v8.16b
  uminv b7, v8.16b
  movi v8.16b, 9

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)03181e1f3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)simd prf full (72)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)acbranch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)fetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
8020420058150010803025801081008000810080020500640132020020200392003999770699908012020080032200160064200392003911802011009910010080000100031115118016020036800001002004020040200402004020040
80204200391500007225801081008000810080020500640132120020200392003999770699908012020080032200160064200392003911802011009910010080000100001115118016020036800001002004020040201022004020040
802042003915010883025801081008000810080020500640132120020200392003999770699908012020080032200160276200392003911802011009910010080000100201115118016020036800001002004020040200402004020040
802042003915002407225801081008000810080020500640132120020200392003999770699908012020080032200160064200392003911802011009910010080000100701115118016020036800001002004020040200402004020040
802042003915007203025801081008000810080020500640132120020200392003999770699908012020080032200160064200392003911802011009910010080000100001115118016020036800001002004020040200402004020040
802042003915003903025801081008000810080020500640132120020200392003999770699908012020080032200160064200392003911802011009910010080000100531115118016020036800001002004020040200402004020040
802042003915000013625801081008000810080020500640132120020200392003999770699908012020080032200160064200392003911802011009910010080000100001115118016020036800001002004020040200402004020040
80204200391500003025801081008000810080020500640132120020200392003999770699908012020080032200160064200392003911802011009910010080000100001115118016020036800001002004020040200402004020040
80204200391500003025801081008000810080020500640132120020200392003999770699908012020080032200160064200392003911802011009910010080000100001115118016020036800001002004020040200402004020040
80204200391500003025801081008000810080020500640132020020200392003999770699908012020080032200160064200392003911802011009910010080000100001115118016020036800001002004020040200402004020040

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)031e3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696b6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)a9accfd5map dispatch bubble (d6)daddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
80024200391500402580010108000010800005064000012002002003920039999631001980010208000020160000200392003911800211091010800001000050203160222003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002002003920039999631001980010208000020160000200392003911800211091010800001000350202160222003680000102004020040200402004020040
80024200391500402580010108000010800005064000002002002003920039999631001980010208000020160000200392003911800211091010800001000050202160432003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002002003920039999631001980010208000020160000200392003911800211091010800001000050203160442003680000102004020040200402004020040
800242003915004025800101080000108000050640000120020020039200399996310019800102080000201600002003920039118002110910108000010100050203160222003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002002003920039999631001980010208000020160000200392003911800211091010800001000050203160442003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002002003920039999631001980010208000020160000200392003911800211091010800001012050202160332003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002002003920039999631001980010208000020160000200392003911800211091010800001000050203160222003680000102004020040200402004020040
80024200391500402580010108000010800005064000012002002003920039999631001980010208000020160000200392003911800211091010800001000050202160222003680000102004020040200402004020040
8002420039150040258001010800001080000506400001200200200392003999963100198001020800002016000020039200391180021109101080000100011750202160222003680000102004020040200402004020040