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

FRINTI (scalar, D)

Test 1: uops

Code:

  frinti d0, d0
  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)031e3f4e51schedule 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)acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
1004303723061254725100010001000398160030183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
100430372345612547251000100010003981600301830373037241432895100010001000303730371110011000048073116112629100030383038303830383038
1004303723061254725100010001000398160030183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
1004303723061254725100010001000398160030183037303724143289511501000100030373037111001100000073116112629100030383038303830383038
1004303724061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
1004303724061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
10043037231261254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
1004303724061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038
10043037230612547251000100010003981601301830373037241432895100010001000303730371110011000048073116112629100030383038303830383038
1004303723061254725100010001000398160130183037303724143289510001000100030373037111001100000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  frinti d0, d0
  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)03181e1f3f4e51schedule 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)l1d cache writeback (a8)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
1020430037232000103295472510100100100001001000050042771600300183003730037282643287451010020010000200100003003730037111020110099100100100001000400071011611296330100001003003830038300383003830038
1020430037232000213295472510100100100001001000050042771601300183003730037282643287451010020010000200100003003730037111020110099100100100001000100071011611296330100001003003830038300383003830038
102043003723200061295472510100100100001001000050042771600300183003730037282643287451010020010000200100003003730037111020110099100100100001000000071011611296330100001003003830038300383003830038
10204300372330006129547251010010010000100100005004277160030018300373003728264328745101002001000020010000300373003711102011009910010010000100000180071011611296330100001003003830038300383003830038
102043003723300061295472510100100100001001000050042771600300183003730037282643287451010020010000200100003003730037111020110099100100100001000000071011611296330100001003003830038300383003830038
102043003723200061295472510100100100001001000050042771600300183003730037282643287451010020010000200100003003730037111020110099100100100001000003071011611296330100001003003830038300383003830038
1020430037233000612954725101001001000010010000500427716003001830037300372826432874510100200100002001000030037300371110201100991001001000010004300071011611296330100001003003830038300383003830038
1020430037232000612954725101001001000010010000500427716003001830037300372826432874510100200100002001000030037300371110201100991001001000010005500071011611296330100001003003830038300383003830038
1020430037233000612954725101001001000010010000500427716003001830037300372826432874510100200100002001000030037300371110201100991001001000010001060710116112963321100001003018030038300383003830038
1020430037233000612954725101001001000010010000500427716003001830037300372826432874510100200100002001000030037300371110201100991001001000010002702771071011611296330100001003003830038300383003830133

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)18191e1f3a3f4e51schedule 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)acc2branch cond mispred nonspec (c5)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
1002430037232000000082295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000900006402162229629010000103003830038300383003830038
10024300372330000000612954725100101010000101000050427716013001830037300372828632876710010201000020100003003730037111002110910101000010002660006402162229629010000103003830038300383003830038
10024300372320000000612954725100101010000101000050427716013001830037300372828632876710010201000020100003003730037111002110910101000010001960006402162229629010000103003830038300383003830038
10024300372330000000612954725100101010000101000050427716013001830037300372828632876710010201000020100003003730037111002110910101000010001430006402162229629010000103003830038300383003830038
1002430037233000000061295472510010101000013100005042771600300183003730037282863287671001020100002010000300373003711100211091010100001000800006402162229629010000103003830038300383003830038
1002430037233000000061295472510010101000010100005042771600300183003730037282863287671001020100002010000300373003711100211091010100001000000006402162229629010000103003830038300383003830038
100243003723300000006129547251001010100001010000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100015120006402162229629010000103003830038300383003830038
10024300372330000120061295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000960006402162229629010000103003830038300383003830038
10024300372320000000612954725100101010000101000050427716003001830037300372828632876710010201000020100003003730037111002110910101000010003330006402162229629010000103003830038300383003830038
100243003723200000006129547251001010100001110000504277160130018300373003728286328767100102010000201000030037300371110021109101010000100065210006402162229629010000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  frinti d0, d8
  frinti d1, d8
  frinti d2, d8
  frinti d3, d8
  frinti d4, d8
  frinti d5, d8
  frinti d6, d8
  frinti d7, d8
  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)03mmu table walk data (08)l2 tlb miss data (0b)18191e1f3f51schedule 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)acc2branch 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
802042005915600000058258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000000111511801600200360800001002004020040200402004020040
802042003915500000030258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000030111511801600200360800001002004020040200402004020040
802042003915500000072258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000000111511801600200360800001002004020040200402004020040
802042003915500000030258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000000111511801600200360800001002004020040200402004020040
8020420039155000012051258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000000111511801600200360800001002004020040200402004020040
802042003915500000030258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000100111511801600200360800001002004020040200402039820040
802042003916100000030258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100000300111511801600200360800001002004020040200402004020040
802042003915500000030258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100000000111511801600200360800001002004020040200402004020040
802042003915500000030258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000000111511801600200360800001002004020040200402004020040
802042003915500000030258010810080008100800205006401320200202003920039997769990801202008003220080032200392003911802011009910010080000100000000111511801600200360800001002004020040200402004020040

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03mmu table walk data (08)0f191e3f51schedule 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)5f60696d6emap 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)9fld unit uop (a6)st unit uop (a7)l1d cache writeback (a8)acc2branch mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0eb? simd retires (ee)? int retires (ef)f5f6f7f8fd
8002420050155000040258001010800001080000506400000020020200392003999963100198001020800002080000200392003911800211091010800001000000050205165220036080000102004020040200402004020040
800242003915500004025802061080000108000050640000012002020039200399996310019800102080000208000020039200391180021109101080000100026810050203162420036080000102004020040200402004020040
8002420039156000040258001010800001080000506400000120020200392003999963100198001020800002080000200392003911800211091010800001000000050202165220036080000102004020040200402004020040
8002420039156000040258001010800001080000506400000120020200392003999963100198001020800002080000200392003911800211091010800001000000050205164420036080000102004020040200402004020040
8002420039156000340258001010800001080000506400000120020200392003999963100198001020800002080000200392003911800211091010800001000000050205164520036080000102004020040200402004020040
8002420039155000040258001010800001080000506400000120020200392003999963100198001020800002080000200392003911800211091010800001000000050205162420036080000102004020040200402004020040
80024200391560000402580010108000010800005064000001200202003920039999631001980010208000020800002003920039118002110910108000010004200050202165320036080000102004020040200402004020040
8002420039155000040258001010800001080000506400000120020200392003999963100198001020800002080000200392003911800211091010800001000100050204165220036080000102004020040200402004020040
8002420039155000040258001010800001080000506400000120020200392003999963100198001020800002080000200392003911800211091010800001000100050204164320036080000102004020040200402004020040
80024200391610000303258001010800001080000506400000120020200392003999963100198001020800002080000200392003911800211091010791671000000050202165420036080000102004020040200402004020040