POPCNT (R32, M32)

Experiment 1

Instruction: POPCNT R8D, dword ptr [R14]

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 0.54
- APERF: 0.5
- UOPS: 1.0

Experiment 2

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 5

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 63 c0             	movsxd r8,r8d
   8:	4d 63 c0             	movsxd r8,r8d
   b:	4d 63 c0             	movsxd r8,r8d
   e:	4d 63 c0             	movsxd r8,r8d
  11:	4d 63 c0             	movsxd r8,r8d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 1.74
- APERF: 1.76
- UOPS: 6.0

Latency operand 1 → 3: 0

Experiment 1

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVC R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 6

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	45 0f 42 ff          	cmovb  r15d,r15d
   9:	4d 63 c7             	movsxd r8,r15d
   c:	4d 63 c0             	movsxd r8,r8d
   f:	4d 63 c0             	movsxd r8,r8d
  12:	4d 63 c0             	movsxd r8,r8d
  15:	4d 63 c0             	movsxd r8,r8d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 1.98
- APERF: 2.27
- UOPS: 7.0

Experiment 2

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVZ R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 6

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	45 0f 44 ff          	cmove  r15d,r15d
   9:	4d 63 c7             	movsxd r8,r15d
   c:	4d 63 c0             	movsxd r8,r8d
   f:	4d 63 c0             	movsxd r8,r8d
  12:	4d 63 c0             	movsxd r8,r8d
  15:	4d 63 c0             	movsxd r8,r8d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 1.98
- APERF: 2.27
- UOPS: 7.0

Experiment 3

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVS R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 6

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	45 0f 48 ff          	cmovs  r15d,r15d
   9:	4d 63 c7             	movsxd r8,r15d
   c:	4d 63 c0             	movsxd r8,r8d
   f:	4d 63 c0             	movsxd r8,r8d
  12:	4d 63 c0             	movsxd r8,r8d
  15:	4d 63 c0             	movsxd r8,r8d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 1.92
- APERF: 2.27
- UOPS: 7.0

Experiment 4

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVO R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 6

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	45 0f 40 ff          	cmovo  r15d,r15d
   9:	4d 63 c7             	movsxd r8,r15d
   c:	4d 63 c0             	movsxd r8,r8d
   f:	4d 63 c0             	movsxd r8,r8d
  12:	4d 63 c0             	movsxd r8,r8d
  15:	4d 63 c0             	movsxd r8,r8d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 1.86
- APERF: 2.27
- UOPS: 7.0

Experiment 5

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVP R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 6

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	45 0f 4a ff          	cmovp  r15d,r15d
   9:	4d 63 c7             	movsxd r8,r15d
   c:	4d 63 c0             	movsxd r8,r8d
   f:	4d 63 c0             	movsxd r8,r8d
  12:	4d 63 c0             	movsxd r8,r8d
  15:	4d 63 c0             	movsxd r8,r8d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 1.86
- APERF: 2.27
- UOPS: 7.0

Latency operand 2 → 1 (address, base register): 5

Latency operand 2 → 1 (address, index register): 5

Latency operand 2 → 1 (memory): ≤1

Latency operand 2 → 3 (address, base register): 5

Experiment 1

Instruction: POPCNT R8D, dword ptr [R14]
Chain instruction: CMOVC R14, R14
Chain latency: 1

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 42 f6          	cmovb  r14,r14

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 4.98
- APERF: 6.0
- UOPS: 2.0

Experiment 2

Instruction: POPCNT R8D, dword ptr [R14]
Chain instruction: CMOVZ R14, R14
Chain latency: 1

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 44 f6          	cmove  r14,r14

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 4.98
- APERF: 6.0
- UOPS: 2.0

Experiment 3

Instruction: POPCNT R8D, dword ptr [R14]
Chain instruction: CMOVS R14, R14
Chain latency: 1

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 48 f6          	cmovs  r14,r14

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.04
- APERF: 6.0
- UOPS: 2.0

Experiment 4

Instruction: POPCNT R8D, dword ptr [R14]
Chain instruction: CMOVO R14, R14
Chain latency: 1

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 40 f6          	cmovo  r14,r14

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.04
- APERF: 6.0
- UOPS: 2.0

Experiment 5

Instruction: POPCNT R8D, dword ptr [R14]
Chain instruction: CMOVP R14, R14
Chain latency: 1

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 4a f6          	cmovp  r14,r14

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.04
- APERF: 6.0
- UOPS: 2.0

Latency operand 2 → 3 (address, index register): 5

Experiment 1

Instruction: POPCNT R8D, dword ptr [R14+R13]
Chain instruction: CMOVC R13, R13
Chain latency: 1

Code:

   0:	f3 47 0f b8 04 2e    	popcnt r8d,DWORD PTR [r14+r13*1]
   6:	4d 0f 42 ed          	cmovb  r13,r13

Init:
```
VZEROALL;
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.04
- APERF: 6.0
- UOPS: 2.0

Experiment 2

Instruction: POPCNT R8D, dword ptr [R14+R13]
Chain instruction: CMOVZ R13, R13
Chain latency: 1

Code:

   0:	f3 47 0f b8 04 2e    	popcnt r8d,DWORD PTR [r14+r13*1]
   6:	4d 0f 44 ed          	cmove  r13,r13

Init:
```
VZEROALL;
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.04
- APERF: 6.0
- UOPS: 2.0

Experiment 3

Instruction: POPCNT R8D, dword ptr [R14+R13]
Chain instruction: CMOVS R13, R13
Chain latency: 1

Code:

   0:	f3 47 0f b8 04 2e    	popcnt r8d,DWORD PTR [r14+r13*1]
   6:	4d 0f 48 ed          	cmovs  r13,r13

Init:
```
VZEROALL;
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.04
- APERF: 6.0
- UOPS: 2.0

Experiment 4

Instruction: POPCNT R8D, dword ptr [R14+R13]
Chain instruction: CMOVO R13, R13
Chain latency: 1

Code:

   0:	f3 47 0f b8 04 2e    	popcnt r8d,DWORD PTR [r14+r13*1]
   6:	4d 0f 40 ed          	cmovo  r13,r13

Init:
```
VZEROALL;
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.1
- APERF: 6.0
- UOPS: 2.0

Experiment 5

Instruction: POPCNT R8D, dword ptr [R14+R13]
Chain instruction: CMOVP R13, R13
Chain latency: 1

Code:

   0:	f3 47 0f b8 04 2e    	popcnt r8d,DWORD PTR [r14+r13*1]
   6:	4d 0f 4a ed          	cmovp  r13,r13

Init:
```
VZEROALL;
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.04
- APERF: 6.0
- UOPS: 2.0

Latency operand 2 → 3 (memory): ≤1

Experiment 1

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVC R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥5

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 42 e4          	cmovb  r12,r12
   9:	4d 63 e4             	movsxd r12,r12d
   c:	4d 63 e4             	movsxd r12,r12d
   f:	4d 63 e4             	movsxd r12,r12d
  12:	4d 63 e4             	movsxd r12,r12d
  15:	45 89 26             	mov    DWORD PTR [r14],r12d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.4
- APERF: 6.14
- UOPS: 7.0

Experiment 2

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVZ R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥5

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 44 e4          	cmove  r12,r12
   9:	4d 63 e4             	movsxd r12,r12d
   c:	4d 63 e4             	movsxd r12,r12d
   f:	4d 63 e4             	movsxd r12,r12d
  12:	4d 63 e4             	movsxd r12,r12d
  15:	45 89 26             	mov    DWORD PTR [r14],r12d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.4
- APERF: 6.14
- UOPS: 7.0

Experiment 3

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVS R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥5

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 48 e4          	cmovs  r12,r12
   9:	4d 63 e4             	movsxd r12,r12d
   c:	4d 63 e4             	movsxd r12,r12d
   f:	4d 63 e4             	movsxd r12,r12d
  12:	4d 63 e4             	movsxd r12,r12d
  15:	45 89 26             	mov    DWORD PTR [r14],r12d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.4
- APERF: 6.14
- UOPS: 7.0

Experiment 4

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVO R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥5

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 40 e4          	cmovo  r12,r12
   9:	4d 63 e4             	movsxd r12,r12d
   c:	4d 63 e4             	movsxd r12,r12d
   f:	4d 63 e4             	movsxd r12,r12d
  12:	4d 63 e4             	movsxd r12,r12d
  15:	45 89 26             	mov    DWORD PTR [r14],r12d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.4
- APERF: 6.14
- UOPS: 7.0

Experiment 5

Instruction: POPCNT R8D, dword ptr [R14]
Chain instructions: CMOVP R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥5

Code:

   0:	f3 45 0f b8 06       	popcnt r8d,DWORD PTR [r14]
   5:	4d 0f 4a e4          	cmovp  r12,r12
   9:	4d 63 e4             	movsxd r12,r12d
   c:	4d 63 e4             	movsxd r12,r12d
   f:	4d 63 e4             	movsxd r12,r12d
  12:	4d 63 e4             	movsxd r12,r12d
  15:	45 89 26             	mov    DWORD PTR [r14],r12d

Init:
```
VZEROALL
```
Show nanoBench command
Results:
- MPERF: 5.4
- APERF: 6.14
- UOPS: 7.0

POPCNT (R32, M32) - Latency

Operands

Latency operand 1 → 1: 0

Latency operand 1 → 3: 0

Latency operand 2 → 1 (address, base register): 5

Latency operand 2 → 1 (address, index register): 5

Latency operand 2 → 1 (memory): ≤1

Latency operand 2 → 3 (address, base register): 5

Latency operand 2 → 3 (address, index register): 5

Latency operand 2 → 3 (memory): ≤1

Latency operand 1 → 1: 0

Experiment 1

Experiment 2

Latency operand 1 → 3: 0

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5

Latency operand 2 → 1 (address, base register): 5

Experiment 1

Latency operand 2 → 1 (address, index register): 5

Experiment 1

Latency operand 2 → 1 (memory): ≤1

Experiment 1

Latency operand 2 → 3 (address, base register): 5

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5

Latency operand 2 → 3 (address, index register): 5

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5

Latency operand 2 → 3 (memory): ≤1

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5