IDIV (R64)

Operands

• Operand 1 (r): Register (RAX, RCX, RDX, RBX, RSP, RBP, RSI, RDI, R8, R9, R10, R11, R12, R13, R14, R15)
• Operand 2 (r/w, suppressed): Register (RAX)
• Operand 3 (r/w, suppressed): Register (RDX)
• Operand 4 (w, suppressed): Flags (AF: undef, CF: undef, OF: undef, PF: undef, SF: undef, ZF: undef)

Available performance data

• Alder Lake-P
• Alder Lake-E
• Rocket Lake
• Tiger Lake
• Ice Lake
• Cascade Lake
• Cannon Lake
• Skylake-X
• Coffee Lake
• Kaby Lake
• Skylake
• Broadwell
• Haswell
• Ivy Bridge
• Sandy Bridge
• Westmere
• Nehalem
• Wolfdale
• Conroe
• Tremont
• Goldmont Plus
• Goldmont
• Airmont
• Bonnell
• AMD Zen 4
• AMD Zen 3
• AMD Zen 2
• AMD Zen+

Alder Lake-P

• Measurements
• Latencies
  • Latency operand 1 → 2: 14
  • Latency operand 1 → 3: 18
  • Latency operand 2 → 2: 14
  • Latency operand 2 → 3: 18
  • Latency operand 3 → 2: 18
  • Latency operand 3 → 3: 18
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 10.00
  • Measured (unrolled): 10.00
• Number of μops
  • Executed: 3
  • Retire slots: 5
  • Decoded (MITE): 5
  • Microcode Sequencer (MS): 0
• Port usage: 3*p1

Alder Lake-E

• Measurements
• Latencies
  • Latency operand 1 → 2: 12 ≤ lat ≤ 43
  • Latency operand 1 → 3: 13 ≤ lat ≤ 44
  • Latency operand 2 → 2: 11 ≤ lat ≤ 42
  • Latency operand 2 → 3: 12 ≤ lat ≤ 43
  • Latency operand 3 → 2: 11 ≤ lat ≤ 42
  • Latency operand 3 → 3: 11 ≤ lat ≤ 42
• Throughput
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 4
  • Microcode Sequencer (MS): 3

Rocket Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 14
  • Latency operand 1 → 3: 18
  • Latency operand 2 → 2: 14
  • Latency operand 2 → 3: 18
  • Latency operand 3 → 2: 18
  • Latency operand 3 → 3: 18
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 10.00
  • Measured (unrolled): 10.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+3*p1

Tiger Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 14
  • Latency operand 1 → 3: 18
  • Latency operand 2 → 2: 14
  • Latency operand 2 → 3: 18
  • Latency operand 3 → 2: 18
  • Latency operand 3 → 3: 18
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 10.00
  • Measured (unrolled): 10.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+3*p1

Ice Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 14
  • Latency operand 1 → 3: 18
  • Latency operand 2 → 2: 14
  • Latency operand 2 → 3: 18
  • Latency operand 3 → 2: 18
  • Latency operand 3 → 3: 18
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 10.00
  • Measured (unrolled): 10.03
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+3*p1

Cascade Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 41 ≤ lat ≤ 95
  • Latency operand 1 → 3: 40 ≤ lat ≤ 96
  • Latency operand 2 → 2: 39 ≤ lat ≤ 94
  • Latency operand 2 → 3: 39 ≤ lat ≤ 95
  • Latency operand 3 → 2: 39 ≤ lat ≤ 94
  • Latency operand 3 → 3: 37 ≤ lat ≤ 95
• Throughput
  • Computed from the port usage: 15.00
  • Measured (loop): 24.33
  • Measured (unrolled): 24.31
• Number of μops
  • Executed: 56
  • Retire slots: 57
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 53
• Port usage: 2*p0+6*p01+8*p015+6*p05+28*p06+1*p1+5*p15+3*p5

Cannon Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 14
  • Latency operand 1 → 3: 18
  • Latency operand 2 → 2: 14
  • Latency operand 2 → 3: 18
  • Latency operand 3 → 2: 18
  • Latency operand 3 → 3: 18
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 10.00
  • Measured (unrolled): 10.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+3*p1

Skylake-X

• Measurements
• Latencies
  • Latency operand 1 → 2: 41 ≤ lat ≤ 95
  • Latency operand 1 → 3: 40 ≤ lat ≤ 96
  • Latency operand 2 → 2: 39 ≤ lat ≤ 94
  • Latency operand 2 → 3: 39 ≤ lat ≤ 95
  • Latency operand 3 → 2: 39 ≤ lat ≤ 94
  • Latency operand 3 → 3: 37 ≤ lat ≤ 95
• Throughput
  • Computed from the port usage: 15.00
  • Measured (loop): 24.33
  • Measured (unrolled): 24.40
• Number of μops
  • Executed: 56
  • Retire slots: 57
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 53
• Port usage: 2*p0+5*p01+9*p015+6*p05+28*p06+1*p1+4*p15+3*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 98.19
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 96.63
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5

Coffee Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 41 ≤ lat ≤ 95
  • Latency operand 1 → 3: 40 ≤ lat ≤ 96
  • Latency operand 2 → 2: 39 ≤ lat ≤ 94
  • Latency operand 2 → 3: 39 ≤ lat ≤ 95
  • Latency operand 3 → 2: 39 ≤ lat ≤ 94
  • Latency operand 3 → 3: 38 ≤ lat ≤ 95
• Throughput
  • Computed from the port usage: 14.50
  • Measured (loop): 24.38
  • Measured (unrolled): 24.38
• Number of μops
  • Executed: 56
  • Retire slots: 57
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 53
• Port usage: 2*p0+6*p01+7*p015+7*p05+27*p06+1*p1+5*p15+3*p5

Kaby Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 41 ≤ lat ≤ 95
  • Latency operand 1 → 3: 41 ≤ lat ≤ 96
  • Latency operand 2 → 2: 38 ≤ lat ≤ 94
  • Latency operand 2 → 3: 39 ≤ lat ≤ 95
  • Latency operand 3 → 2: 39 ≤ lat ≤ 94
  • Latency operand 3 → 3: 37 ≤ lat ≤ 95
• Throughput
  • Computed from the port usage: 14.50
  • Measured (loop): 24.33
  • Measured (unrolled): 24.45
• Number of μops
  • Executed: 56
  • Retire slots: 57
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 53
• Port usage: 2*p0+6*p01+8*p015+7*p05+27*p06+1*p1+4*p15+3*p5

Skylake

• Measurements
• Latencies
  • Latency operand 1 → 2: 41 ≤ lat ≤ 95
  • Latency operand 1 → 3: 41 ≤ lat ≤ 96
  • Latency operand 2 → 2: 39 ≤ lat ≤ 94
  • Latency operand 2 → 3: 39 ≤ lat ≤ 95
  • Latency operand 3 → 2: 39 ≤ lat ≤ 94
  • Latency operand 3 → 3: 38 ≤ lat ≤ 95
• Throughput
  • Computed from the port usage: 14.50
  • Measured (loop): 24.38
  • Measured (unrolled): 24.40
• Number of μops
  • Executed: 56
  • Retire slots: 57
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 53
• Port usage: 2*p0+5*p01+10*p015+6*p05+27*p06+1*p1+4*p15+3*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 98.19
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 96.63
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5

Broadwell

• Measurements
• Latencies
  • Latency operand 1 → 2: 37 ≤ lat ≤ 97
  • Latency operand 1 → 3: 37 ≤ lat ≤ 99
  • Latency operand 2 → 2: 39 ≤ lat ≤ 99
  • Latency operand 2 → 3: 39 ≤ lat ≤ 100
  • Latency operand 3 → 2: 38 ≤ lat ≤ 99
  • Latency operand 3 → 3: 38 ≤ lat ≤ 99
• Throughput
  • Computed from the port usage: 14.25
  • Measured (loop): 24.36
  • Measured (unrolled): 24.40
• Number of μops
  • Executed: 57
  • Retire slots: 59
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 55
• Port usage: 2*p0+7*p01+11*p015+1*p0156+26*p06+3*p1+2*p15+5*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 112.05 (with the -no_interiteration flag: 103.24)
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5

Haswell

• Measurements
• Latencies
  • Latency operand 1 → 2: 38 ≤ lat ≤ 99
  • Latency operand 1 → 3: 37 ≤ lat ≤ 100
  • Latency operand 2 → 2: 39 ≤ lat ≤ 100
  • Latency operand 2 → 3: 39 ≤ lat ≤ 101
  • Latency operand 3 → 2: 38 ≤ lat ≤ 100
  • Latency operand 3 → 3: 38 ≤ lat ≤ 100
• Throughput
  • Computed from the port usage: 14.25
  • Measured (loop): 24.25
  • Measured (unrolled): 24.28
• Number of μops
  • Executed: 57
  • Retire slots: 59
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 55
• Port usage: 2*p0+7*p01+12*p015+1*p0156+26*p06+3*p1+1*p15+5*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 112.05 (with the -no_interiteration flag: 103.24)
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 107.71
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 16.50
  • IACA: 106.11
• Number of μops: 66
• Port usage: 4*p0+14*p015+20*p0156+22*p06+2*p1+4*p5

Ivy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 2: 38 ≤ lat ≤ 99
  • Latency operand 1 → 3: 38 ≤ lat ≤ 97
  • Latency operand 2 → 2: 38 ≤ lat ≤ 99
  • Latency operand 2 → 3: 38 ≤ lat ≤ 99
  • Latency operand 3 → 2: 38 ≤ lat ≤ 98
  • Latency operand 3 → 3: 37 ≤ lat ≤ 97
• Throughput
  • Computed from the port usage: 20.00
  • Measured (loop): 26.37
  • Measured (unrolled): 26.36
• Number of μops
  • Executed: 57
  • Retire slots: 59
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 55
• Port usage: 2*p0+18*p01+12*p05+4*p1+6*p15+18*p5

Sandy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 2: 38 ≤ lat ≤ 98
  • Latency operand 1 → 3: 37 ≤ lat ≤ 98
  • Latency operand 2 → 2: 38 ≤ lat ≤ 98
  • Latency operand 2 → 3: 38 ≤ lat ≤ 99
  • Latency operand 3 → 2: 38 ≤ lat ≤ 98
  • Latency operand 3 → 3: 37 ≤ lat ≤ 99
• Throughput
  • Computed from the port usage: 20.67
  • Measured (loop): 25.33
  • Measured (unrolled): 25.11
• Number of μops
  • Executed: 57
  • Retire slots: 59
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 55
• Port usage: 2*p0+19*p01+13*p05+4*p1+6*p15+18*p5

Westmere

• Measurements
• Latencies
  • Latency operand 1 → 2: 34 ≤ lat ≤ 91
  • Latency operand 1 → 3: 33 ≤ lat ≤ 92
  • Latency operand 2 → 2: 36 ≤ lat ≤ 95
  • Latency operand 2 → 3: 36 ≤ lat ≤ 97
  • Latency operand 3 → 2: 35 ≤ lat ≤ 95
  • Latency operand 3 → 3: 34 ≤ lat ≤ 97
• Throughput
  • Computed from the port usage: 17.33
  • Measured (loop): 24.89
  • Measured (unrolled): 24.20
• Number of μops
  • Executed: 52
  • Retire slots: 52
  • Microcode Sequencer (MS): 164
• Port usage: 2*p0+22*p015+15*p05+2*p1+11*p5

Nehalem

• Measurements
• Latencies
  • Latency operand 1 → 2: 35 ≤ lat ≤ 96
  • Latency operand 1 → 3: 34 ≤ lat ≤ 95
  • Latency operand 2 → 2: 37 ≤ lat ≤ 96
  • Latency operand 2 → 3: 36 ≤ lat ≤ 97
  • Latency operand 3 → 2: 35 ≤ lat ≤ 94
  • Latency operand 3 → 3: 32 ≤ lat ≤ 93
• Throughput
  • Computed from the port usage: 17.67
  • Measured (loop): 26.02
  • Measured (unrolled): 26.44
• Number of μops
  • Executed: 53
  • Retire slots: 53
  • Microcode Sequencer (MS): 174
• Port usage: 2*p0+19*p015+18*p05+4*p1+10*p5

Wolfdale

• Measurements
• Latencies
  • Latency operand 1 → 2: 38 ≤ lat ≤ 79
  • Latency operand 1 → 3: 36 ≤ lat ≤ 77
  • Latency operand 2 → 2: 38 ≤ lat ≤ 80
  • Latency operand 2 → 3: 38 ≤ lat ≤ 77
  • Latency operand 3 → 2: 36 ≤ lat ≤ 74
  • Latency operand 3 → 3: 35 ≤ lat ≤ 73
• Throughput
  • Computed from the port usage: 18.67
  • Measured (loop): 26.84
  • Measured (unrolled): 26.93
• Number of μops
  • Executed: 56
• Port usage: 4*p0+14*p015+11*p05+12*p1+15*p5

Conroe

• Measurements
• Latencies
  • Latency operand 1 → 2: 42 ≤ lat ≤ 131
  • Latency operand 1 → 3: 39 ≤ lat ≤ 132
  • Latency operand 2 → 2: 41 ≤ lat ≤ 129
  • Latency operand 2 → 3: 41 ≤ lat ≤ 128
  • Latency operand 3 → 2: 40 ≤ lat ≤ 127
  • Latency operand 3 → 3: 39 ≤ lat ≤ 126
• Throughput
  • Computed from the port usage: 19.00
  • Measured (loop): 28.33
  • Measured (unrolled): 28.31
• Number of μops
  • Executed: 57
• Port usage: 6*p0+11*p015+13*p05+14*p1+13*p5

Tremont

• Measurements
• Latencies
  • Latency operand 1 → 2: 11 ≤ lat ≤ 42
  • Latency operand 1 → 3: 12 ≤ lat ≤ 43
  • Latency operand 2 → 2: 11 ≤ lat ≤ 42
  • Latency operand 2 → 3: 12 ≤ lat ≤ 43
  • Latency operand 3 → 2: 11 ≤ lat ≤ 42
  • Latency operand 3 → 3: 11 ≤ lat ≤ 42
• Throughput
  • Measured (loop): 11.00
  • Measured (unrolled): 11.00
• Number of μops
  • Executed: 5
  • Microcode Sequencer (MS): 4

Goldmont Plus

• Measurements
• Latencies
  • Latency operand 1 → 2: 13 ≤ lat ≤ 42
  • Latency operand 1 → 3: 14 ≤ lat ≤ 43
  • Latency operand 2 → 2: 13 ≤ lat ≤ 42
  • Latency operand 2 → 3: 14 ≤ lat ≤ 43
  • Latency operand 3 → 2: 13 ≤ lat ≤ 42
  • Latency operand 3 → 3: 13 ≤ lat ≤ 42
• Throughput
  • Measured (loop): 13.00
  • Measured (unrolled): 13.00
• Number of μops
  • Executed: 4
  • Microcode Sequencer (MS): 4

Goldmont

• Measurements
• Latencies
  • Latency operand 1 → 2: 13 ≤ lat ≤ 42
  • Latency operand 1 → 3: 14 ≤ lat ≤ 43
  • Latency operand 2 → 2: 13 ≤ lat ≤ 42
  • Latency operand 2 → 3: 14 ≤ lat ≤ 43
  • Latency operand 3 → 2: 13 ≤ lat ≤ 42
  • Latency operand 3 → 3: 13 ≤ lat ≤ 42
• Throughput
  • Measured (loop): 13.00
  • Measured (unrolled): 13.00
• Number of μops
  • Executed: 4
  • Microcode Sequencer (MS): 4

Airmont

• Measurements
• Latencies
  • Latency operand 1 → 2: 47 ≤ lat ≤ 106
  • Latency operand 1 → 3: 44 ≤ lat ≤ 107
  • Latency operand 2 → 2: 46 ≤ lat ≤ 107
  • Latency operand 2 → 3: 48 ≤ lat ≤ 106
  • Latency operand 3 → 2: 46 ≤ lat ≤ 105
  • Latency operand 3 → 3: 44 ≤ lat ≤ 105
• Throughput
  • Measured (loop): 48.00
  • Measured (unrolled): 48.00
• Number of μops
  • Executed: 44
  • Microcode Sequencer (MS): 44

Bonnell

• Measurements
• Latencies
  • Latency operand 1 → 2: 95 ≤ lat ≤ 217
  • Latency operand 1 → 3: 96 ≤ lat ≤ 218
  • Latency operand 2 → 2: 95 ≤ lat ≤ 217
  • Latency operand 2 → 3: 96 ≤ lat ≤ 226
  • Latency operand 3 → 2: 96 ≤ lat ≤ 218
  • Latency operand 3 → 3: 96 ≤ lat ≤ 218
• Throughput
  • Measured (loop): 94.03
  • Measured (unrolled): 94.02
• Number of μops
  • Executed: 60
  • Microcode Sequencer (MS): 60

AMD Zen 4

• Measurements
• Latencies
  • Latency operand 1 → 2: 9 ≤ lat ≤ 17
  • Latency operand 1 → 3: 10 ≤ lat ≤ 18
  • Latency operand 2 → 2: 9 ≤ lat ≤ 17
  • Latency operand 2 → 3: 10 ≤ lat ≤ 18
  • Latency operand 3 → 2: 11 ≤ lat ≤ 19
  • Latency operand 3 → 3: 11 ≤ lat ≤ 19
• Throughput
  • Measured (loop): 7.00
  • Measured (unrolled): 7.00
• Number of μops
  • Executed: 2

AMD Zen 3

• Measurements
• Latencies
  • Latency operand 1 → 2: 9 ≤ lat ≤ 17
  • Latency operand 1 → 3: 10 ≤ lat ≤ 18
  • Latency operand 2 → 2: 9 ≤ lat ≤ 17
  • Latency operand 2 → 3: 10 ≤ lat ≤ 18
  • Latency operand 3 → 2: 11 ≤ lat ≤ 19
  • Latency operand 3 → 3: 11 ≤ lat ≤ 19
• Throughput
  • Measured (loop): 7.00
  • Measured (unrolled): 7.00
• Number of μops
  • Executed: 2
• Documentation
• Latency: 18
• Throughput: 10.00
• Number of μops: 2
• Port usage: DIV

AMD Zen 2

• Measurements
• Latencies
  • Latency operand 1 → 2: 8 ≤ lat ≤ 39
  • Latency operand 1 → 3: 10 ≤ lat ≤ 41
  • Latency operand 2 → 2: 8 ≤ lat ≤ 39
  • Latency operand 2 → 3: 10 ≤ lat ≤ 41
  • Latency operand 3 → 2: 10 ≤ lat ≤ 41
  • Latency operand 3 → 3: 10 ≤ lat ≤ 41
• Throughput
  • Measured (loop): 14.00
  • Measured (unrolled): 14.00
• Number of μops
  • Executed: 2
• Documentation
• Latency: 41
• Throughput: 41.00
• Number of μops: 2
• Port usage: DIV

AMD Zen+

• Measurements
• Latencies
  • Latency operand 1 → 2: 8 ≤ lat ≤ 39
  • Latency operand 1 → 3: 10 ≤ lat ≤ 41
  • Latency operand 2 → 2: 8 ≤ lat ≤ 39
  • Latency operand 2 → 3: 10 ≤ lat ≤ 41
  • Latency operand 3 → 2: 10 ≤ lat ≤ 41
  • Latency operand 3 → 3: 10 ≤ lat ≤ 41
• Throughput
  • Measured (loop): 14.00
  • Measured (unrolled): 14.00
• Number of μops
  • Executed: 2
• Documentation
• Latency: 41
• Throughput: 41.00
• Number of μops: 2
• Port usage: DIV