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

FRINTZ (scalar, D)

Test 1: uops

Code:

  frintz 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)696d6emap 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
100430372314461254725100010001000398160301830373037241432895100010001000303730371110011000073216112629100030383038303830383038
10043037234861254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372312061254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
10043037226661254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
1004303722061254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
1004303722661254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
1004303723061254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
1004303723061254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
100430372327661254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038
10043037233361254725100010001000398160301830373037241432895100010001000303730371110011000073116112629100030383038303830383038

Test 2: Latency 1->2

Code:

  frintz 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)03mmu table walk data (08)193f4e51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
102043003722400612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722500612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722500612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722400612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722500612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
1020430037225007262954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722500612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722500612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722500612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038
102043003722500612954725101001001000010010000500427716013001803003730037282643287451010020010000200100003003730037111020110099100100100001000071011611296330100001003003830038300383003830038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

retire uop (01)cycle (02)0309l2 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)9fld unit uop (a6)st unit uop (a7)l1d cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10024300372250000120103295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000106640416432962910000103003830038300383003830038
10024300372250000120103295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000103640316342962910000103003830038300383003830038
1002430037225000012061295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000103640316442962910000103003830038300383003830038
100243003722500000061295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000100640416342962910000103003830038300383003830038
1002430037225000000103295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000103640416432962910000103003830038300383003830038
100243003722500001201242954725100101010000101000050427716003001830037300372828632876710010201000020100003003730037111002110910101000010001018640416322962910000103003830038300383003830038
10024300372250000300810295472510010101001610100005042771600300183003730037282863287671001020100002010000300373003711100211091010100001000203661424542962910000103003830038300383003830038
1002430037225000000103295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000103640316342962910000103003830038300383003830038
100243003722500001830103295472510010101000010100005042771600300183003730037282863287671001020100002010000300373003711100211091010100001000503640416342962910000103003830038300383003830038
10024300372240000120103295472510010101000010100005042771601300183003730037282863287671001020100002010000300373003711100211091010100001000103640316432962910000103003830038300383003830038

Test 3: throughput

Count: 8

Code:

  frintz d0, d8
  frintz d1, d8
  frintz d2, d8
  frintz d3, d8
  frintz d4, d8
  frintz d5, d8
  frintz d6, d8
  frintz 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)181e3f51schedule 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)a9acbranch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
80204200581500009186258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100203111511811620036800001002004020040200402004020040
802042003915000012722580108100800081008002050064013212002020039200399977699908012020080032200800322003920039118020110099100100800001000015111511801620036800001002004020040200402004020040
802042003915000003025801081008000810080020500640132120020200392003999776999080120200800322008003220039200391180201100991001008000010000177111511801620036800001002004020040200402004020040
8020420039150000030258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100106111511801620036800001002004020040200402004020040
8020420039150000030258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100303111511801620036800001002004020040200402004020040
8020420039150000030258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100000111511801620036800001002009120040200402004020040
80204200391500001230258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100000111511801620036800001002004020040200402004020091
802042003915000002012580108100800081008023250064013202002020039200399977699908012020080032200800322003920039118020110099100100800001006006111511801620036800001002004020040200402004020040
80204200391500000114258010810080008100800205006401321200202003920039997769990801202008003220080032200392003911802011009910010080000100000111511801620036800001002004020040200402004020040
80204200391500000302580108100800081008002050064013212002020039200399977699908012020080032200800322003920039118020110099100100800001000072111511801620036800001002004020040200402004020040

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)031e3a3f51schedule 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)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
800242005115048040258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010135020131612122003680000102004020040200402004020040
800242003915012082258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010005020151616132003680000102004020040200402004020040
8002420039150120252258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010135020111613102003680000102004020040200402004020040
800242003915012040258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010135020111612142003680000102004020040200402004020040
800242003915012088258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010135020161617142003680000102004020040200402004020040
800242003914912082258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010135020131612162003680000102004020040200402004020040
800242003915012082258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010105020101614112003680000102004020040200402004020040
800242003914912040258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010035020131616132003680000102004020040200402004020040
800242003915012082258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010105045121616122003680000102004020040200402004020040
800242003915012040258001010800001080000506400000200202003920039999631001980010208000020800002003920039118002110910108000010135020141615112003680000102004020040200402004020040