DIV (R32)

Operands

• Operand 1 (r): Register (EAX, ECX, EDX, EBX, ESP, EBP, ESI, EDI, R8D, R9D, R10D, R11D, R12D, R13D, R14D, R15D)
• Operand 2 (r/w, suppressed): Register (EAX)
• Operand 3 (r/w, suppressed): Register (EDX)
• 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: 10
  • Latency operand 1 → 3: 14
  • Latency operand 2 → 2: 11
  • Latency operand 2 → 3: 15
  • Latency operand 3 → 2: 15
  • Latency operand 3 → 3: 15
• Throughput
  • Computed from the port usage: 3.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 2
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 3*p1

Alder Lake-E

• Measurements
• Latencies
  • Latency operand 1 → 2: 12 ≤ lat ≤ 27
  • Latency operand 1 → 3: 13 ≤ lat ≤ 28
  • Latency operand 2 → 2: 11 ≤ lat ≤ 26
  • Latency operand 2 → 3: 12 ≤ lat ≤ 27
  • Latency operand 3 → 2: 11 ≤ lat ≤ 26
  • Latency operand 3 → 3: 11 ≤ lat ≤ 26
• 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: 10
  • Latency operand 1 → 3: 14
  • Latency operand 2 → 2: 12
  • Latency operand 2 → 3: 15
  • Latency operand 3 → 2: 15
  • Latency operand 3 → 3: 15
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+2*p1+1*p15

Tiger Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 10
  • Latency operand 1 → 3: 14
  • Latency operand 2 → 2: 11
  • Latency operand 2 → 3: 15
  • Latency operand 3 → 2: 15
  • Latency operand 3 → 3: 15
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+2*p1+1*p15

Ice Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 10
  • Latency operand 1 → 3: 14
  • Latency operand 2 → 2: 11
  • Latency operand 2 → 3: 15
  • Latency operand 3 → 2: 15
  • Latency operand 3 → 3: 15
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+2*p1+1*p15

Cascade Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 25 ≤ lat ≤ 27
  • Latency operand 1 → 3: 26 ≤ lat ≤ 28
  • Latency operand 2 → 2: 23 ≤ lat ≤ 25
  • Latency operand 2 → 3: 24 ≤ lat ≤ 26
  • Latency operand 3 → 2: 24 ≤ lat ≤ 26
  • Latency operand 3 → 3: 24 ≤ lat ≤ 26
• Throughput
  • Computed from the port usage: 4.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+2*p0156+1*p06+1*p15+4*p5

Cannon Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 10
  • Latency operand 1 → 3: 14
  • Latency operand 2 → 2: 11
  • Latency operand 2 → 3: 15
  • Latency operand 3 → 2: 15
  • Latency operand 3 → 3: 15
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 4
  • Retire slots: 4
  • Decoded (MITE): 4
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0156+2*p1+1*p15

Skylake-X

• Measurements
• Latencies
  • Latency operand 1 → 2: 25 ≤ lat ≤ 27
  • Latency operand 1 → 3: 26 ≤ lat ≤ 28
  • Latency operand 2 → 2: 23 ≤ lat ≤ 25
  • Latency operand 2 → 3: 24 ≤ lat ≤ 26
  • Latency operand 3 → 2: 24 ≤ lat ≤ 26
  • Latency operand 3 → 3: 24 ≤ lat ≤ 26
• Throughput
  • Computed from the port usage: 4.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+2*p0156+1*p06+1*p15+4*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 73.10
• Number of μops: 32
• Port usage: 7*p0+11*p0156+1*p05+3*p06+2*p1+8*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 72.00
• Number of μops: 32
• Port usage: 7*p0+11*p0156+1*p05+3*p06+2*p1+8*p5

Coffee Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 25 ≤ lat ≤ 27
  • Latency operand 1 → 3: 26 ≤ lat ≤ 28
  • Latency operand 2 → 2: 23 ≤ lat ≤ 25
  • Latency operand 2 → 3: 24 ≤ lat ≤ 26
  • Latency operand 3 → 2: 24 ≤ lat ≤ 26
  • Latency operand 3 → 3: 24 ≤ lat ≤ 26
• Throughput
  • Computed from the port usage: 4.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+2*p0156+1*p06+1*p15+4*p5

Kaby Lake

• Measurements
• Latencies
  • Latency operand 1 → 2: 25 ≤ lat ≤ 27
  • Latency operand 1 → 3: 26 ≤ lat ≤ 28
  • Latency operand 2 → 2: 23 ≤ lat ≤ 25
  • Latency operand 2 → 3: 24 ≤ lat ≤ 26
  • Latency operand 3 → 2: 24 ≤ lat ≤ 26
  • Latency operand 3 → 3: 24 ≤ lat ≤ 26
• Throughput
  • Computed from the port usage: 4.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+2*p0156+1*p06+1*p15+4*p5

Skylake

• Measurements
• Latencies
  • Latency operand 1 → 2: 25 ≤ lat ≤ 27
  • Latency operand 1 → 3: 26 ≤ lat ≤ 28
  • Latency operand 2 → 2: 23 ≤ lat ≤ 25
  • Latency operand 2 → 3: 24 ≤ lat ≤ 26
  • Latency operand 3 → 2: 24 ≤ lat ≤ 26
  • Latency operand 3 → 3: 24 ≤ lat ≤ 26
• Throughput
  • Computed from the port usage: 4.00
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+2*p0156+1*p06+1*p15+4*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 73.10
• Number of μops: 32
• Port usage: 7*p0+11*p0156+1*p05+3*p06+2*p1+8*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 72.00
• Number of μops: 32
• Port usage: 7*p0+11*p0156+1*p05+3*p06+2*p1+8*p5

Broadwell

• Measurements
• Latencies
  • Latency operand 1 → 2: 20 ≤ lat ≤ 27
  • Latency operand 1 → 3: 20 ≤ lat ≤ 27
  • Latency operand 2 → 2: 21 ≤ lat ≤ 28
  • Latency operand 2 → 3: 21 ≤ lat ≤ 28
  • Latency operand 3 → 2: 21 ≤ lat ≤ 28
  • Latency operand 3 → 3: 21 ≤ lat ≤ 28
• Throughput
  • Computed from the port usage: 2.50
  • Measured (loop): 9.00
  • Measured (unrolled): 9.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+1*p0156+2*p06+2*p1+1*p15+2*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 80.00 (with the -no_interiteration flag: 69.76)
• Number of μops: 32
• Port usage: 7*p0+1*p01+9*p0156+5*p06+7*p1+3*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 76.90
• Number of μops: 32
• Port usage: 7*p0+1*p01+9*p0156+5*p06+7*p1+3*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 75.79
• Number of μops: 32
• Port usage: 7*p0+1*p01+11*p0156+3*p06+7*p1+3*p5

Haswell

• Measurements
• Latencies
  • Latency operand 1 → 2: 20 ≤ lat ≤ 27
  • Latency operand 1 → 3: 20 ≤ lat ≤ 27
  • Latency operand 2 → 2: 22 ≤ lat ≤ 28
  • Latency operand 2 → 3: 21 ≤ lat ≤ 28
  • Latency operand 3 → 2: 21 ≤ lat ≤ 28
  • Latency operand 3 → 3: 21 ≤ lat ≤ 28
• Throughput
  • Computed from the port usage: 2.50
  • Measured (loop): 9.00
  • Measured (unrolled): 9.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+1*p0156+2*p06+2*p1+1*p15+2*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 98.00 (with the -no_interiteration flag: 85.19)
• Number of μops: 32
• Port usage: 7*p0+1*p01+10*p0156+4*p06+7*p1+3*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 94.05
• Number of μops: 32
• Port usage: 7*p0+1*p01+10*p0156+4*p06+7*p1+3*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 8.00
  • IACA: 92.84
• Number of μops: 32
• Port usage: 7*p0+1*p01+11*p0156+3*p06+7*p1+3*p5

Ivy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 2: 18 ≤ lat ≤ 25
  • Latency operand 1 → 3: 18 ≤ lat ≤ 25
  • Latency operand 2 → 2: 19 ≤ lat ≤ 26
  • Latency operand 2 → 3: 20 ≤ lat ≤ 26
  • Latency operand 3 → 2: 20 ≤ lat ≤ 26
  • Latency operand 3 → 3: 19 ≤ lat ≤ 26
• Throughput
  • Computed from the port usage: 3.50
  • Measured (loop): 9.00
  • Measured (unrolled): 9.00
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+1*p015+2*p05+2*p1+3*p5

Sandy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 2: 18 ≤ lat ≤ 25
  • Latency operand 1 → 3: 18 ≤ lat ≤ 25
  • Latency operand 2 → 2: 19 ≤ lat ≤ 26
  • Latency operand 2 → 3: 19 ≤ lat ≤ 26
  • Latency operand 3 → 2: 19 ≤ lat ≤ 26
  • Latency operand 3 → 3: 19 ≤ lat ≤ 26
• Throughput
  • Computed from the port usage: 3.50
  • Measured (loop): 11.00
  • Measured (unrolled): 11.03
• Number of μops
  • Executed: 10
  • Retire slots: 10
  • Decoded (MITE): 3
  • Microcode Sequencer (MS): 7
• Port usage: 2*p0+1*p015+2*p05+2*p1+3*p5

Westmere

• Measurements
• Latencies
  • Latency operand 1 → 2: 17 ≤ lat ≤ 26
  • Latency operand 1 → 3: 17 ≤ lat ≤ 26
  • Latency operand 2 → 2: 17 ≤ lat ≤ 27
  • Latency operand 2 → 3: 17 ≤ lat ≤ 27
  • Latency operand 3 → 2: 17 ≤ lat ≤ 27
  • Latency operand 3 → 3: 17 ≤ lat ≤ 27
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 7.00
  • Measured (unrolled): 7.02
• Number of μops
  • Executed: 6
  • Retire slots: 6
  • Microcode Sequencer (MS): 3
• Port usage: 1*p0+1*p015+2*p05+2*p1

Nehalem

• Measurements
• Latencies
  • Latency operand 1 → 2: 17 ≤ lat ≤ 26
  • Latency operand 1 → 3: 17 ≤ lat ≤ 26
  • Latency operand 2 → 2: 17 ≤ lat ≤ 27
  • Latency operand 2 → 3: 17 ≤ lat ≤ 27
  • Latency operand 3 → 2: 17 ≤ lat ≤ 27
  • Latency operand 3 → 3: 17 ≤ lat ≤ 27
• Throughput
  • Computed from the port usage: 2.00
  • Measured (loop): 7.00
  • Measured (unrolled): 7.02
• Number of μops
  • Executed: 6
  • Retire slots: 6
  • Microcode Sequencer (MS): 3
• Port usage: 1*p0+1*p015+2*p05+2*p1

Wolfdale

• Measurements
• Latencies
  • Latency operand 1 → 2: 13 ≤ lat ≤ 22
  • Latency operand 1 → 3: 12 ≤ lat ≤ 22
  • Latency operand 2 → 2: 13 ≤ lat ≤ 23
  • Latency operand 2 → 3: 14 ≤ lat ≤ 24
  • Latency operand 3 → 2: 14 ≤ lat ≤ 24
  • Latency operand 3 → 3: 14 ≤ lat ≤ 24
• Throughput
  • Computed from the port usage: 2.33
  • Measured (loop): 5.00
  • Measured (unrolled): 5.00
• Number of μops
  • Executed: 7
• Port usage: 1*p0+2*p015+2*p05+2*p1

Conroe

• Measurements
• Latencies
  • Latency operand 1 → 2: 17 ≤ lat ≤ 41
  • Latency operand 1 → 3: 17 ≤ lat ≤ 41
  • Latency operand 2 → 2: 17 ≤ lat ≤ 41
  • Latency operand 2 → 3: 18 ≤ lat ≤ 42
  • Latency operand 3 → 2: 18 ≤ lat ≤ 42
  • Latency operand 3 → 3: 17 ≤ lat ≤ 41
• Throughput
  • Computed from the port usage: 1.50
  • Measured (loop): 12.04
  • Measured (unrolled): 12.25
• Number of μops
  • Executed: 4
• Port usage: 1*p0+1*p015+2*p05

Tremont

• Measurements
• Latencies
  • Latency operand 1 → 2: 11 ≤ lat ≤ 26
  • Latency operand 1 → 3: 12 ≤ lat ≤ 27
  • Latency operand 2 → 2: 11 ≤ lat ≤ 26
  • Latency operand 2 → 3: 12 ≤ lat ≤ 27
  • Latency operand 3 → 2: 11 ≤ lat ≤ 26
  • Latency operand 3 → 3: 11 ≤ lat ≤ 26
• 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 ≤ 26
  • Latency operand 1 → 3: 14 ≤ lat ≤ 27
  • Latency operand 2 → 2: 13 ≤ lat ≤ 26
  • Latency operand 2 → 3: 14 ≤ lat ≤ 27
  • Latency operand 3 → 2: 13 ≤ lat ≤ 26
  • Latency operand 3 → 3: 13 ≤ lat ≤ 26
• 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 ≤ 26
  • Latency operand 1 → 3: 14 ≤ lat ≤ 27
  • Latency operand 2 → 2: 13 ≤ lat ≤ 26
  • Latency operand 2 → 3: 14 ≤ lat ≤ 27
  • Latency operand 3 → 2: 13 ≤ lat ≤ 26
  • Latency operand 3 → 3: 13 ≤ lat ≤ 26
• 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: 24 ≤ lat ≤ 36
  • Latency operand 1 → 3: 26 ≤ lat ≤ 38
  • Latency operand 2 → 2: 25 ≤ lat ≤ 37
  • Latency operand 2 → 3: 26 ≤ lat ≤ 38
  • Latency operand 3 → 2: 26 ≤ lat ≤ 38
  • Latency operand 3 → 3: 26 ≤ lat ≤ 38
• Throughput
  • Measured (loop): 19.00
  • Measured (unrolled): 19.00
• Number of μops
  • Executed: 12
  • Microcode Sequencer (MS): 12

Bonnell

• Measurements
• Latencies
  • Latency operand 1 → 2: 50
  • Latency operand 1 → 3: 50
  • Latency operand 2 → 2: 49
  • Latency operand 2 → 3: 49
  • Latency operand 3 → 2: 49
  • Latency operand 3 → 3: 49
• Throughput
  • Measured (loop): 50.03
  • Measured (unrolled): 50.00
• Number of μops
  • Executed: 12
  • Microcode Sequencer (MS): 12

AMD Zen 4

• Measurements
• Latencies
  • Latency operand 1 → 2: 9 ≤ lat ≤ 12
  • Latency operand 1 → 3: 10 ≤ lat ≤ 13
  • Latency operand 2 → 2: 9 ≤ lat ≤ 12
  • Latency operand 2 → 3: 10 ≤ lat ≤ 13
  • Latency operand 3 → 2: 11 ≤ lat ≤ 14
  • Latency operand 3 → 3: 11 ≤ lat ≤ 14
• Throughput
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 2

AMD Zen 3

• Measurements
• Latencies
  • Latency operand 1 → 2: 9 ≤ lat ≤ 12
  • Latency operand 1 → 3: 10 ≤ lat ≤ 13
  • Latency operand 2 → 2: 9 ≤ lat ≤ 12
  • Latency operand 2 → 3: 10 ≤ lat ≤ 13
  • Latency operand 3 → 2: 11 ≤ lat ≤ 14
  • Latency operand 3 → 3: 11 ≤ lat ≤ 14
• Throughput
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 2

AMD Zen 2

• Measurements
• Latencies
  • Latency operand 1 → 2: 8 ≤ lat ≤ 23
  • Latency operand 1 → 3: 10 ≤ lat ≤ 25
  • Latency operand 2 → 2: 8 ≤ lat ≤ 23
  • Latency operand 2 → 3: 10 ≤ lat ≤ 25
  • Latency operand 3 → 2: 10 ≤ lat ≤ 25
  • Latency operand 3 → 3: 10 ≤ lat ≤ 25
• Throughput
  • Measured (loop): 14.00
  • Measured (unrolled): 14.00
• Number of μops
  • Executed: 2

AMD Zen+

• Measurements
• Latencies
  • Latency operand 1 → 2: 8 ≤ lat ≤ 23
  • Latency operand 1 → 3: 10 ≤ lat ≤ 25
  • Latency operand 2 → 2: 8 ≤ lat ≤ 23
  • Latency operand 2 → 3: 10 ≤ lat ≤ 25
  • Latency operand 3 → 2: 10 ≤ lat ≤ 25
  • Latency operand 3 → 3: 10 ≤ lat ≤ 25
• Throughput
  • Measured (loop): 14.00
  • Measured (unrolled): 14.00
• Number of μops
  • Executed: 2
• Documentation
• Latency: 25
• Throughput: 25.00
• Number of μops: 2
• Port usage: ALU2