XADD_LOCK (M32, R32)

Experiment 1

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: MOV R12D, [R14];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R14, R12; XOR R14, R12
Chain latency: ≥12

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	45 8b 26             	mov    r12d,DWORD PTR [r14]
   8:	4d 63 e4             	movsxd r12,r12d
   b:	4d 63 e4             	movsxd r12,r12d
   e:	4d 63 e4             	movsxd r12,r12d
  11:	4d 63 e4             	movsxd r12,r12d
  14:	4d 63 e4             	movsxd r12,r12d
  17:	4d 63 e4             	movsxd r12,r12d
  1a:	4d 63 e4             	movsxd r12,r12d
  1d:	4d 63 e4             	movsxd r12,r12d
  20:	4d 63 e4             	movsxd r12,r12d
  23:	4d 63 e4             	movsxd r12,r12d
  26:	4d 31 e6             	xor    r14,r12
  29:	4d 31 e6             	xor    r14,r12

Show nanoBench command
Results:
- MPERF: 20.21
- APERF: 23.37
- UOPS: 17.0

Experiment 2 (with additional nop)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: MOV R12D, [R14];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R14, R12; XOR R14, R12;nop
Chain latency: ≥12

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	45 8b 26             	mov    r12d,DWORD PTR [r14]
   8:	4d 63 e4             	movsxd r12,r12d
   b:	4d 63 e4             	movsxd r12,r12d
   e:	4d 63 e4             	movsxd r12,r12d
  11:	4d 63 e4             	movsxd r12,r12d
  14:	4d 63 e4             	movsxd r12,r12d
  17:	4d 63 e4             	movsxd r12,r12d
  1a:	4d 63 e4             	movsxd r12,r12d
  1d:	4d 63 e4             	movsxd r12,r12d
  20:	4d 63 e4             	movsxd r12,r12d
  23:	4d 63 e4             	movsxd r12,r12d
  26:	4d 31 e6             	xor    r14,r12
  29:	4d 31 e6             	xor    r14,r12
  2c:	90                   	nop

Show nanoBench command
Results:
- MPERF: 20.21
- APERF: 23.33
- UOPS: 17.0

Latency operand 1 → 1 (address, index register): ≤11

Experiment 1

Instruction: LOCK XADD dword ptr [R14+R13], R8D
Chain instructions: MOV R12D, [R14+R13];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R13, R12; XOR R13, R12
Chain latency: ≥12

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	47 8b 24 2e          	mov    r12d,DWORD PTR [r14+r13*1]
   a:	4d 63 e4             	movsxd r12,r12d
   d:	4d 63 e4             	movsxd r12,r12d
  10:	4d 63 e4             	movsxd r12,r12d
  13:	4d 63 e4             	movsxd r12,r12d
  16:	4d 63 e4             	movsxd r12,r12d
  19:	4d 63 e4             	movsxd r12,r12d
  1c:	4d 63 e4             	movsxd r12,r12d
  1f:	4d 63 e4             	movsxd r12,r12d
  22:	4d 63 e4             	movsxd r12,r12d
  25:	4d 63 e4             	movsxd r12,r12d
  28:	4d 31 e5             	xor    r13,r12
  2b:	4d 31 e5             	xor    r13,r12

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 20.21
- APERF: 23.37
- UOPS: 17.0

Experiment 2 (with additional nop)

Instruction: LOCK XADD dword ptr [R14+R13], R8D
Chain instructions: MOV R12D, [R14+R13];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R13, R12; XOR R13, R12;nop
Chain latency: ≥12

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	47 8b 24 2e          	mov    r12d,DWORD PTR [r14+r13*1]
   a:	4d 63 e4             	movsxd r12,r12d
   d:	4d 63 e4             	movsxd r12,r12d
  10:	4d 63 e4             	movsxd r12,r12d
  13:	4d 63 e4             	movsxd r12,r12d
  16:	4d 63 e4             	movsxd r12,r12d
  19:	4d 63 e4             	movsxd r12,r12d
  1c:	4d 63 e4             	movsxd r12,r12d
  1f:	4d 63 e4             	movsxd r12,r12d
  22:	4d 63 e4             	movsxd r12,r12d
  25:	4d 63 e4             	movsxd r12,r12d
  28:	4d 31 e5             	xor    r13,r12
  2b:	4d 31 e5             	xor    r13,r12
  2e:	90                   	nop

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 20.21
- APERF: 23.37
- UOPS: 17.0

Latency operand 1 → 1 (memory): 8

Experiment 1

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: MOV R12D, [R14];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOV [R14], R12D
Chain latency: 10

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	45 8b 26             	mov    r12d,DWORD PTR [r14]
   8:	4d 63 e4             	movsxd r12,r12d
   b:	4d 63 e4             	movsxd r12,r12d
   e:	4d 63 e4             	movsxd r12,r12d
  11:	4d 63 e4             	movsxd r12,r12d
  14:	4d 63 e4             	movsxd r12,r12d
  17:	4d 63 e4             	movsxd r12,r12d
  1a:	4d 63 e4             	movsxd r12,r12d
  1d:	4d 63 e4             	movsxd r12,r12d
  20:	4d 63 e4             	movsxd r12,r12d
  23:	4d 63 e4             	movsxd r12,r12d
  26:	45 89 26             	mov    DWORD PTR [r14],r12d

Show nanoBench command
Results:
- MPERF: 20.99
- APERF: 24.43
- UOPS: 16.0

Experiment 2

Instruction: LOCK XADD dword ptr [R14], R8D

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d

Show nanoBench command
Results:
- MPERF: 6.82
- APERF: 7.88
- UOPS: 4.0

Experiment 3 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instruction: MOV R8D, 0

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	41 b8 00 00 00 00    	mov    r8d,0x0

Show nanoBench command
Results:
- MPERF: 6.74
- APERF: 7.83
- UOPS: 5.0

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

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

Latency operand 1 → 2 (memory): ≤7

Latency operand 1 → 3 (address, base register): 5

Experiment 1

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

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 44 f6          	cmove  r14,r14

Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 2 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVZ R14, R14;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 44 f6          	cmove  r14,r14
   9:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Show nanoBench command
Results:
- MPERF: 11.52
- APERF: 13.44
- UOPS: 6.0

Experiment 3

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

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 4a f6          	cmovp  r14,r14

Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 4 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVP R14, R14;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 4a f6          	cmovp  r14,r14
   9:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Show nanoBench command
Results:
- MPERF: 11.44
- APERF: 13.44
- UOPS: 6.0

Experiment 5

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

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 48 f6          	cmovs  r14,r14

Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 6 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVS R14, R14;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 48 f6          	cmovs  r14,r14
   9:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Show nanoBench command
Results:
- MPERF: 11.44
- APERF: 13.44
- UOPS: 6.0

Experiment 7

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

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 42 f6          	cmovb  r14,r14

Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 8 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVC R14, R14;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 42 f6          	cmovb  r14,r14
   9:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Show nanoBench command
Results:
- MPERF: 11.59
- APERF: 13.44
- UOPS: 6.0

Experiment 9

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

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 40 f6          	cmovo  r14,r14

Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 10 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVO R14, R14;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	4d 0f 40 f6          	cmovo  r14,r14
   9:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Show nanoBench command
Results:
- MPERF: 11.44
- APERF: 13.44
- UOPS: 6.0

Latency operand 1 → 3 (address, index register): 5

Experiment 1

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

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 44 ed          	cmove  r13,r13

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 2 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14+R13], R8D
Chain instructions: CMOVZ R13, R13;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 44 ed          	cmove  r13,r13
   a:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 6.0

Experiment 3

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

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 4a ed          	cmovp  r13,r13

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 4 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14+R13], R8D
Chain instructions: CMOVP R13, R13;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 4a ed          	cmovp  r13,r13
   a:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 6.0

Experiment 5

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

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 48 ed          	cmovs  r13,r13

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 6 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14+R13], R8D
Chain instructions: CMOVS R13, R13;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 48 ed          	cmovs  r13,r13
   a:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 6.0

Experiment 7

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

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 42 ed          	cmovb  r13,r13

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 8 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14+R13], R8D
Chain instructions: CMOVC R13, R13;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 42 ed          	cmovb  r13,r13
   a:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 6.0

Experiment 9

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

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 40 ed          	cmovo  r13,r13

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 5.0

Experiment 10 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14+R13], R8D
Chain instructions: CMOVO R13, R13;MOV dword ptr [R14], 0
Chain latency: 1

Code:

   0:	f0 47 0f c1 04 2e    	lock xadd DWORD PTR [r14+r13*1],r8d
   6:	4d 0f 40 ed          	cmovo  r13,r13
   a:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Init:
```
XOR R13, R13
```
Show nanoBench command
Results:
- MPERF: 5.17
- APERF: 6.0
- UOPS: 6.0

Latency operand 1 → 3 (memory): ≤7

Experiment 1

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVZ R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥11

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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:	4d 63 e4             	movsxd r12,r12d
  18:	4d 63 e4             	movsxd r12,r12d
  1b:	4d 63 e4             	movsxd r12,r12d
  1e:	4d 63 e4             	movsxd r12,r12d
  21:	4d 63 e4             	movsxd r12,r12d
  24:	4d 63 e4             	movsxd r12,r12d
  27:	45 89 26             	mov    DWORD PTR [r14],r12d

Show nanoBench command
Results:
- MPERF: 16.22
- APERF: 18.72
- UOPS: 16.0

Experiment 2

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVP R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥11

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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:	4d 63 e4             	movsxd r12,r12d
  18:	4d 63 e4             	movsxd r12,r12d
  1b:	4d 63 e4             	movsxd r12,r12d
  1e:	4d 63 e4             	movsxd r12,r12d
  21:	4d 63 e4             	movsxd r12,r12d
  24:	4d 63 e4             	movsxd r12,r12d
  27:	45 89 26             	mov    DWORD PTR [r14],r12d

Show nanoBench command
Results:
- MPERF: 16.22
- APERF: 18.72
- UOPS: 16.0

Experiment 3

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVS R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥11

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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:	4d 63 e4             	movsxd r12,r12d
  18:	4d 63 e4             	movsxd r12,r12d
  1b:	4d 63 e4             	movsxd r12,r12d
  1e:	4d 63 e4             	movsxd r12,r12d
  21:	4d 63 e4             	movsxd r12,r12d
  24:	4d 63 e4             	movsxd r12,r12d
  27:	45 89 26             	mov    DWORD PTR [r14],r12d

Show nanoBench command
Results:
- MPERF: 16.37
- APERF: 18.72
- UOPS: 16.0

Experiment 4

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVC R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥11

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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:	4d 63 e4             	movsxd r12,r12d
  18:	4d 63 e4             	movsxd r12,r12d
  1b:	4d 63 e4             	movsxd r12,r12d
  1e:	4d 63 e4             	movsxd r12,r12d
  21:	4d 63 e4             	movsxd r12,r12d
  24:	4d 63 e4             	movsxd r12,r12d
  27:	45 89 26             	mov    DWORD PTR [r14],r12d

Show nanoBench command
Results:
- MPERF: 16.06
- APERF: 18.72
- UOPS: 16.0

Experiment 5

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVO R12, R12;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;MOVSX R12, R12d;mov [R14], R12D
Chain latency: ≥11

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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:	4d 63 e4             	movsxd r12,r12d
  18:	4d 63 e4             	movsxd r12,r12d
  1b:	4d 63 e4             	movsxd r12,r12d
  1e:	4d 63 e4             	movsxd r12,r12d
  21:	4d 63 e4             	movsxd r12,r12d
  24:	4d 63 e4             	movsxd r12,r12d
  27:	45 89 26             	mov    DWORD PTR [r14],r12d

Show nanoBench command
Results:
- MPERF: 16.14
- APERF: 18.72
- UOPS: 16.0

Latency operand 2 → 1: ≤7

Latency operand 2 → 2: 1

Experiment 1

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 11

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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
  14:	4d 63 c0             	movsxd r8,r8d
  17:	4d 63 c0             	movsxd r8,r8d
  1a:	4d 63 c0             	movsxd r8,r8d
  1d:	4d 63 c0             	movsxd r8,r8d
  20:	4d 63 c0             	movsxd r8,r8d
  23:	4d 63 c0             	movsxd r8,r8d

Show nanoBench command
Results:
- MPERF: 10.42
- APERF: 12.0
- UOPS: 15.0

Experiment 2

Instruction: LOCK XADD dword ptr [R14], R8D

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d

Show nanoBench command
Results:
- MPERF: 6.82
- APERF: 7.87
- UOPS: 4.0

Experiment 3 (with dependency-breaking instructions)

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instruction: MOV dword ptr [R14], 0

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   5:	41 c7 06 00 00 00 00 	mov    DWORD PTR [r14],0x0

Show nanoBench command
Results:
- MPERF: 6.82
- APERF: 7.75
- UOPS: 5.0

Latency operand 2 → 3: 1

Experiment 1

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVZ R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 12

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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
  18:	4d 63 c0             	movsxd r8,r8d
  1b:	4d 63 c0             	movsxd r8,r8d
  1e:	4d 63 c0             	movsxd r8,r8d
  21:	4d 63 c0             	movsxd r8,r8d
  24:	4d 63 c0             	movsxd r8,r8d
  27:	4d 63 c0             	movsxd r8,r8d

Show nanoBench command
Results:
- MPERF: 11.28
- APERF: 13.0
- UOPS: 16.0

Experiment 2

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVP R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 12

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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
  18:	4d 63 c0             	movsxd r8,r8d
  1b:	4d 63 c0             	movsxd r8,r8d
  1e:	4d 63 c0             	movsxd r8,r8d
  21:	4d 63 c0             	movsxd r8,r8d
  24:	4d 63 c0             	movsxd r8,r8d
  27:	4d 63 c0             	movsxd r8,r8d

Show nanoBench command
Results:
- MPERF: 11.52
- APERF: 13.0
- UOPS: 16.0

Experiment 3

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVS R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 12

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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
  18:	4d 63 c0             	movsxd r8,r8d
  1b:	4d 63 c0             	movsxd r8,r8d
  1e:	4d 63 c0             	movsxd r8,r8d
  21:	4d 63 c0             	movsxd r8,r8d
  24:	4d 63 c0             	movsxd r8,r8d
  27:	4d 63 c0             	movsxd r8,r8d

Show nanoBench command
Results:
- MPERF: 11.28
- APERF: 13.0
- UOPS: 16.0

Experiment 4

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVC R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 12

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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
  18:	4d 63 c0             	movsxd r8,r8d
  1b:	4d 63 c0             	movsxd r8,r8d
  1e:	4d 63 c0             	movsxd r8,r8d
  21:	4d 63 c0             	movsxd r8,r8d
  24:	4d 63 c0             	movsxd r8,r8d
  27:	4d 63 c0             	movsxd r8,r8d

Show nanoBench command
Results:
- MPERF: 11.28
- APERF: 13.0
- UOPS: 16.0

Experiment 5

Instruction: LOCK XADD dword ptr [R14], R8D
Chain instructions: CMOVO R15D, R15D;MOVSX R8, R15D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D
Chain latency: 12

Code:

   0:	f0 45 0f c1 06       	lock xadd DWORD PTR [r14],r8d
   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
  18:	4d 63 c0             	movsxd r8,r8d
  1b:	4d 63 c0             	movsxd r8,r8d
  1e:	4d 63 c0             	movsxd r8,r8d
  21:	4d 63 c0             	movsxd r8,r8d
  24:	4d 63 c0             	movsxd r8,r8d
  27:	4d 63 c0             	movsxd r8,r8d

Show nanoBench command
Results:
- MPERF: 11.2
- APERF: 13.0
- UOPS: 16.0

XADD_LOCK (M32, R32) - Latency

Operands

Latency operand 1 → 1 (address, base register): ≤11

Latency operand 1 → 1 (address, index register): ≤11

Latency operand 1 → 1 (memory): 8

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

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

Latency operand 1 → 2 (memory): ≤7

Latency operand 1 → 3 (address, base register): 5

Latency operand 1 → 3 (address, index register): 5

Latency operand 1 → 3 (memory): ≤7

Latency operand 2 → 1: ≤7

Latency operand 2 → 2: 1

Latency operand 2 → 3: 1

Latency operand 1 → 1 (address, base register): ≤11

Experiment 1

Experiment 2 (with additional nop)

Latency operand 1 → 1 (address, index register): ≤11

Experiment 1

Experiment 2 (with additional nop)

Latency operand 1 → 1 (memory): 8

Experiment 1

Experiment 2

Experiment 3 (with dependency-breaking instructions)

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

Experiment 1

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

Experiment 1

Latency operand 1 → 2 (memory): ≤7

Experiment 1

Latency operand 1 → 3 (address, base register): 5

Experiment 1

Experiment 2 (with dependency-breaking instructions)

Experiment 3

Experiment 4 (with dependency-breaking instructions)

Experiment 5

Experiment 6 (with dependency-breaking instructions)

Experiment 7

Experiment 8 (with dependency-breaking instructions)

Experiment 9

Experiment 10 (with dependency-breaking instructions)

Latency operand 1 → 3 (address, index register): 5

Experiment 1

Experiment 2 (with dependency-breaking instructions)

Experiment 3

Experiment 4 (with dependency-breaking instructions)

Experiment 5

Experiment 6 (with dependency-breaking instructions)

Experiment 7

Experiment 8 (with dependency-breaking instructions)

Experiment 9

Experiment 10 (with dependency-breaking instructions)

Latency operand 1 → 3 (memory): ≤7

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5

Latency operand 2 → 1: ≤7

Experiment 1

Latency operand 2 → 2: 1

Experiment 1

Experiment 2

Experiment 3 (with dependency-breaking instructions)

Latency operand 2 → 3: 1

Experiment 1

Experiment 2

Experiment 3

Experiment 4

Experiment 5