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

FMINNMV (4S)

Test 1: uops

Code:

  fminnmv s0, v0.4s
  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)03191e3f4e51schedule 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 cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
10043037220061254725100010001000398160130183037303724143289510001000100030373037111001100030073116112629100030383038303830383038
10043037230961254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
10043037230061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
1004303723012126254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
10043037230061254725100010001000398160130183037303724143289510001000100030373037111001100010073116112629100030383038303830383038
10043037220061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
10043037230061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
10043037230061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
1004303722021384254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
10043037230061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  fminnmv s0, v0.4s
  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)031e3f4e51schedule 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)9faccdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
1020430037225061295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
1020430037225061295472510100100100001001000050042771600300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
1020430037225061295472510100100100001001000050042771600300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
1020430037224061295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
1020430037225061295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
10204300372252761295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
1020430037225061295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
1020430037225061295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100017101161129633100001003003830038300383003830038
1020430037225061295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038
1020430037225061295472510100100100001001000050042771601300180300373003728264328745101002001000020010000300373003711102011009910010010000100007101161129633100001003003830038300383003830038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

retire uop (01)cycle (02)03mmu table walk data (08)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)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 tlb access (a0)l1d tlb miss (a1)l1d cache writeback (a8)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100020006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300183300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372240000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038
10024300372250000061295472510010101000010100005042771601300180300373003728286328767100102010000201000030037300371110021109101010000100000006402162229629010000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  fminnmv s0, v8.4s
  fminnmv s1, v8.4s
  fminnmv s2, v8.4s
  fminnmv s3, v8.4s
  fminnmv s4, v8.4s
  fminnmv s5, v8.4s
  fminnmv s6, v8.4s
  fminnmv s7, v8.4s
  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)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)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 miss (a1)ld unit uop (a6)l1d cache writeback (a8)acbranch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
80204200611510512580108100800081008002050064013212002020039200399977699908012020080032200800322003920039118020110099100100800001000000111511821622200360800001002004020040200402004020040
80204200391500512580108100800081008002050064013212002020039200399977699908012020080032200800322003920039118020110099100100800001000000111511821621200361800001002004020040200402004020040
802042003915003025801081008000810080020500640132120020200392003999776999080120200800322008003220039200391180201100991001008000010000099111511811612200360800001002004020040200402004020040
80204200391500302580108100800081008002050064013202002020039200399977699908012020080032200800322003920039118020110099100100800001000000111511821622200360800001002004020040200402004020040
80204200391500302580108100800081008002050064013202002020039200399977699908012020080032200800322003920039118020110099100100800001000003111511821621200360800001002004020040200402004020040
8020420039150123025801081008000810080020500640132020020200392003999776999080120200800322008003220039200391180201100991001008000010000033111511821621200360800001002004020040200402004020040
80204200391500302580108100800081008002050064013202002020039200399977699908012020080032200800322003920039118020110099100100800001000000111511811612200360800001002004020040200402004020040
80204200391500302580108100800081008002050064013202002020039200399977699908012020080032200800322003920039118020110099100100800001000000111511821622200360800001002004020040200402004020040
8020420039150030258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000114111511811621200360800001002004020040200402004020040
80204200391500302580108100800081008002050064013202002020039200399977699908012020080032200800322003920039118020110099100100800001000000111511821622200360800001002009920040200402004020040

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03181e3f51schedule 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)696d6emap 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)9fst unit uop (a7)l1d cache writeback (a8)a9accfd0d5map dispatch bubble (d6)ddfetch restart (de)e0eaeb? simd retires (ee)? int retires (ef)f5f6f7f8fd
8002420050150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001003301715020041644200360080000102004020040200402004020040
8002420039150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001000005020041624200360080000102004020040200402004020040
8002420039150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001000005020041634200360080000102004020040200402004020040
80024200391500084778001010800001080000506400002002020039200399996031001980010208000020800002003920039118002110910108000010000605020041634200360080000102004020040200402004020040
8002420039150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001000005020021634200360080000102004020040200402004020040
8002420039150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001000005020041624200360080000102004020040200402004020040
80024200391500040258001010800001080000506400002002020039200399996031001980010208000020800002003920039118002110910108000010033035020031642200360080000102004020040200402004020040
8002420088150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001000005020021644200360080000102004020040200402004020040
8002420039150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001008035020041624200360080000102004020040200402004020040
8002420039150004025800101080000108000050640000200202003920039999603100198001020800002080000200392003911800211091010800001000005020041624200360080000102004020040200402004020040