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

FMINNMP (scalar)

Test 1: uops

Code:

  fminnmp d0, v0.2d
  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)033f4e51schedule 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)ld unit uop (a6)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000000073116111786100020382038203820382038
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000000373116111786100020382038203820382038
1004203715821686251000100010002645211201820372037157131895100010002000203720371110011000000073116111786100020382038203820382038
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000003073116111786100020382038203820382038
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000000073116111786100020382038203820382038
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000000073116111786100020382038203820382038
10042037156116862510001000100026452112018203720371571318951000100020002037203711100110000001273116111786100020382038203820382038
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000000073116111786100020382038203820382038
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000000073116111786100020382038203820382038
1004203715611686251000100010002645211201820372037157131895100010002000203720371110011000000073116111786100020382038203820382038

Test 2: Latency 1->2

Code:

  fminnmp d0, v0.2d
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0037

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)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)accdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10204200371500000061196862510100100100001001000050028475211200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500000061196862510100100100001001000050028475211200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820083
10204200371500000061196862510100100100001001000050028475210200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
102042003715000000726196862510100100100001001000050028475210200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500000061196862510100100100001001000050028475210200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
102042003715001000531196862510100100100001001000050028475210200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500000061196862510100100100001001000050028475210200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500000061196862510100100100001001000050028475211200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500000061196862510100100100001001000050028475211200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038
10204200371500000061196862510100100100001001000050028475210200182003720037184213187451010020010000200200002003720037111020110099100100100001000007101161119791100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03mmu table walk data (08)181e1f3f4e51schedule 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)l1d cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
100242003715000300103196862510010101000010100005028475210200182003720037184433187671001020100002020000200372003711100211091010100001000006405162219786010000102003820038200382003820038
10024200371500000103196862510010101000010100005028475210200182003720037184453187671001020100002020000200372003711100211091010100001000006402162219786010000102003820038200382003820038
10024200371500036061196862510010101000010100005028475210200182003720037184433187671001020100002020000200372003711100211091010100001000006402162219786010000102003820038200382003820038
10024200371500027061196862510010101000010100005028475210200182003720037184433187671001020100002020000200372003711100211091010100001000006402162219786010000102003820038200382003820038
10024200371500048061196862510010101000010100005028475210200182003720037184433187671001020100002020000200372003711100211091010100001000006402162219786010000102003820038200382003820038
1002420037150000061196862510010101000010100005028475210200182003720037184433187671001020100002020000200372003711100211091010100001001006402162219786010000102003820038200382003820038
1002420037150100061196862510010101000010100005028475210200182003720037184433187671001020100002020000200372003751100211091010100001000006402162219786010000102003820038200382003820038
10024200371500039061196862510010101000010100005028475211200182003720037184433187671001020100002020000200372003711100211091010100001000496402162219786010000102003820038200382003820038
100242003715000165061196862510010101000010100005028475211200182003720037184433187671001020100002020000200372003711100211091010100001000036402162219786010000102003820038200382003820038
1002420037150000061196862510010101000010100005028475211200182003720037184433187671001020100002020000200372003711100211091010100001000006402162219786010000102003820038200382003820038

Test 3: throughput

Count: 8

Code:

  fminnmp d0, v8.2d
  fminnmp d1, v8.2d
  fminnmp d2, v8.2d
  fminnmp d3, v8.2d
  fminnmp d4, v8.2d
  fminnmp d5, v8.2d
  fminnmp d6, v8.2d
  fminnmp d7, v8.2d
  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)03191e3f51schedule 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)acc2branch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfmap dispatch bubble (d6)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
80204200611500029258010810080008100800205006401320200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
80204200381500029258010810080008100800205006401321200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
802042003815000504258010810080008100800205006401320200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
80204200381500029258010810080008100800205006401321200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
80204200381500029258010810080008100800205006401320200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
80204200381500029258010810080008100800205006401320200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
8020420038150031529258010810080008100800205006401320200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
80204200381500345300258010810080008100800205006401321200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
8020420038150036929258010810080008100800205006401320200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039
80204200381500029258010810080008100800205006401320200192003820038997769989801202008003220016006420038200381180201100991001008000010000011151181620035800001002003920039200392003920039

1000 unrolls and 10 iterations

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

retire uop (01)cycle (02)03l2 tlb miss data (0b)1e3f51schedule 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)9fa9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
80024200391500049258001010800001080000506400000200192003820038999603100188001020800002016000020038200381180021109101080000100050207166162003580000102003920039200392003920039
800242003815004353925800101080000108000050640000020019200382003899960310018800102080000201600002003820038118002110910108000010005020161616162003580000102003920039200392003920039
80024200381500039258001010800001080000506400000200192003820038999603100188001020800002016000020038200381180021109101080000100050206166162003580000102003920039200392003920039
80024200381500151392580010108000010800005064000002001920038200389996031001880010208000020160000200382003811800211091010800001000502016161662003580000102003920039200392003920039
800242003815000392580010108000010800005064000002001920038200389996031001880010208000020160000200382003811800211091010800001000502014161662003580000102003920039200392003920039
80024200381501039258001010800001080000506400000200192003820038999603100188001020800002016000020038200381180021109101080000100050206166132003580000102003920039200392003920039
8002420038150051392580010108000010800005064000002001920038200389996031001880010208000020160000200382003811800211091010800001000502016161662003580000102003920039200392003920039
800242003815001839258001010800001080000506400001200192003820038999603100188001020800002016000020038200381180021109101080000100050206166162003580000102003920039200392003920039
800242003815000392580010108000010800005064000002001920038200389996031001880010208000020160000200382003811800211091010800001000502016161662003580000102003920039200392003920039
800242003815000392580010108000010800005064000012001920192200389996031001880010208000020160000200382003811800211091010800001000502016166162003580000102003920100200392003920039