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
Code:
ands x0, x0, x1, ror #17
mov x0, 1 mov x1, 2
(no loop instructions)
Retires: 1.000
Issues: 2.000
Integer unit issues: 2.001
Load/store unit issues: 0.000
SIMD/FP unit issues: 0.000
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
1004 | 2030 | 2001 | 2001 | 1000 | 52265 | 1000 | 1000 | 2000 | 2001 | 1000 |
Code:
ands x0, x0, x1, ror #17
mov x0, 1 mov x1, 2
(fused SUBS/B.cc loop)
Result (median cycles for code): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
10204 | 20030 | 20101 | 20101 | 10104 | 529001 | 10104 | 10206 | 20212 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
Result (median cycles for code): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
10024 | 20030 | 20021 | 20021 | 10025 | 529272 | 10025 | 10032 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
Code:
ands x0, x1, x0, ror #17
mov x0, 1 mov x1, 2
(fused SUBS/B.cc loop)
Result (median cycles for code): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
10204 | 20030 | 20101 | 20101 | 10104 | 529001 | 10104 | 10206 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
10204 | 20030 | 20101 | 20101 | 10104 | 529087 | 10104 | 10208 | 20216 | 20001 | 10100 |
Result (median cycles for code): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
10024 | 20030 | 20021 | 20021 | 10025 | 529192 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
10024 | 20030 | 20021 | 20021 | 10020 | 529249 | 10020 | 10020 | 20020 | 20011 | 10010 |
Chain cycles: 1
Code:
ands x0, x1, x2, ror #17 cset x1, cc
mov x0, 1 mov x1, 2 mov x2, 3 mov x3, 4 mov x4, 5
(fused SUBS/B.cc loop)
Result (median cycles for code, minus 1 chain cycle): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
20204 | 30030 | 30101 | 30101 | 20106 | 789171 | 20106 | 20214 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20205 | 30060 | 30115 | 30115 | 20143 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
Result (median cycles for code, minus 1 chain cycle): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
20024 | 30030 | 30011 | 30011 | 20015 | 789357 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30104 | 30015 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
Chain cycles: 1
Code:
ands x0, x1, x2, ror #17 cset x2, cc
mov x0, 1 mov x1, 2 mov x2, 3 mov x3, 4 mov x4, 5
(fused SUBS/B.cc loop)
Result (median cycles for code, minus 1 chain cycle): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
20204 | 30030 | 30101 | 30101 | 20105 | 789289 | 20106 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789331 | 20105 | 20210 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
20204 | 30030 | 30101 | 30101 | 20105 | 789369 | 20105 | 20212 | 30218 | 30001 | 20100 |
Result (median cycles for code, minus 1 chain cycle): 2.0030
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
20024 | 30030 | 30011 | 30011 | 20015 | 789357 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789792 | 20050 | 20072 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
20024 | 30030 | 30011 | 30011 | 20010 | 789438 | 20010 | 20020 | 30020 | 30001 | 20010 |
Count: 8
Code:
ands x0, x8, x9, ror #17 ands x1, x8, x9, ror #17 ands x2, x8, x9, ror #17 ands x3, x8, x9, ror #17 ands x4, x8, x9, ror #17 ands x5, x8, x9, ror #17 ands x6, x8, x9, ror #17 ands x7, x8, x9, ror #17
mov x8, 9 mov x9, 10 mov x10, 11
(fused SUBS/B.cc loop)
Result (median cycles for code divided by count): 0.6675
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
80204 | 53404 | 160114 | 160114 | 80123 | 1100076 | 80123 | 80224 | 160248 | 160014 | 80100 |
80204 | 53404 | 160114 | 160114 | 80123 | 1099937 | 80123 | 80224 | 160248 | 160014 | 80100 |
80204 | 53404 | 160114 | 160114 | 80123 | 1100076 | 80123 | 80224 | 160248 | 160014 | 80100 |
80204 | 53404 | 160114 | 160114 | 80123 | 1100076 | 80123 | 80224 | 160248 | 160014 | 80100 |
80204 | 53404 | 160114 | 160114 | 80123 | 1100076 | 80123 | 80224 | 160248 | 160014 | 80100 |
80204 | 53417 | 160122 | 160122 | 80127 | 1100076 | 80123 | 80224 | 160256 | 160022 | 80100 |
80206 | 53460 | 160165 | 160165 | 80167 | 1100212 | 80161 | 80262 | 160248 | 160014 | 80100 |
80204 | 53430 | 160122 | 160122 | 80127 | 1099937 | 80123 | 80224 | 160248 | 160014 | 80100 |
80204 | 53417 | 160114 | 160114 | 80123 | 1100076 | 80123 | 80224 | 160336 | 160068 | 80100 |
80204 | 53404 | 160114 | 160114 | 80123 | 1100076 | 80123 | 80224 | 160248 | 160014 | 80100 |
Result (median cycles for code divided by count): 0.6671
retire uop (01) | cycle (02) | schedule uop (52) | schedule int uop (53) | dispatch int uop (56) | int uops in schedulers (59) | dispatch uop (78) | map int uop (7c) | map int uop inputs (7f) | ? int output thing (e9) | ? int retires (ef) |
80024 | 53414 | 160042 | 160042 | 80048 | 1107732 | 80020 | 80020 | 160020 | 160011 | 80010 |
80024 | 53371 | 160021 | 160021 | 80020 | 1107732 | 80020 | 80020 | 160020 | 160011 | 80010 |
80024 | 53371 | 160021 | 160021 | 80020 | 1108552 | 80084 | 80084 | 160020 | 160011 | 80010 |
80024 | 53371 | 160021 | 160021 | 80020 | 1107732 | 80020 | 80020 | 160020 | 160011 | 80010 |
80024 | 53716 | 160042 | 160042 | 80048 | 1104624 | 80020 | 80020 | 160020 | 160011 | 80010 |
80024 | 53371 | 160021 | 160021 | 80020 | 1107732 | 80020 | 80020 | 160020 | 160011 | 80010 |
80024 | 53371 | 160021 | 160021 | 80020 | 1107732 | 80020 | 80020 | 160020 | 160011 | 80010 |
80025 | 53402 | 160065 | 160065 | 80060 | 1107732 | 80020 | 80020 | 160156 | 160074 | 80010 |
80024 | 53371 | 160021 | 160021 | 80020 | 1107732 | 80020 | 80020 | 160020 | 160011 | 80010 |
80025 | 53411 | 160087 | 160087 | 80085 | 1107732 | 80020 | 80020 | 160020 | 160011 | 80010 |