RCL (R64, CL) - Latency

Experiment 1 (with CL=0)

• Instruction: RCL R8, CL
• 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;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: 19
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 63 c0             	movsxd r8,r8d
     6:	4d 63 c0             	movsxd r8,r8d
     9:	4d 63 c0             	movsxd r8,r8d
     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
    2a:	4d 63 c0             	movsxd r8,r8d
    2d:	4d 63 c0             	movsxd r8,r8d
    30:	4d 63 c0             	movsxd r8,r8d
    33:	4d 63 c0             	movsxd r8,r8d
    36:	4d 63 c0             	movsxd r8,r8d
    39:	4d 63 c0             	movsxd r8,r8d
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 27.0
  • Reference cycles: 20.8
  • UOPS_RETIRED.ANY: 34.0

Experiment 2 (with CL=1)

• Instruction: RCL R8, CL
• 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;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: 19
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 63 c0             	movsxd r8,r8d
     6:	4d 63 c0             	movsxd r8,r8d
     9:	4d 63 c0             	movsxd r8,r8d
     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
    2a:	4d 63 c0             	movsxd r8,r8d
    2d:	4d 63 c0             	movsxd r8,r8d
    30:	4d 63 c0             	movsxd r8,r8d
    33:	4d 63 c0             	movsxd r8,r8d
    36:	4d 63 c0             	movsxd r8,r8d
    39:	4d 63 c0             	movsxd r8,r8d
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 27.0
  • Reference cycles: 20.8
  • UOPS_RETIRED.ANY: 34.0

Experiment 3 (with CL=2)

• Instruction: RCL R8, CL
• 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;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: 19
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 63 c0             	movsxd r8,r8d
     6:	4d 63 c0             	movsxd r8,r8d
     9:	4d 63 c0             	movsxd r8,r8d
     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
    2a:	4d 63 c0             	movsxd r8,r8d
    2d:	4d 63 c0             	movsxd r8,r8d
    30:	4d 63 c0             	movsxd r8,r8d
    33:	4d 63 c0             	movsxd r8,r8d
    36:	4d 63 c0             	movsxd r8,r8d
    39:	4d 63 c0             	movsxd r8,r8d
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 27.0
  • Reference cycles: 20.8
  • UOPS_RETIRED.ANY: 34.0

Experiment 4 (with CL=0)

• Instruction: RCL R8, CL
• Code:

     0:	49 d3 d0             	rcl    r8,cl
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 15.0
  • Reference cycles: 11.44
  • UOPS_RETIRED.ANY: 15.0

Experiment 5 (with CL=0, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instruction: TEST R15, R15
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 ff             	test   r15,r15
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.31
  • UOPS_RETIRED.ANY: 16.0

Experiment 6 (with CL=1)

• Instruction: RCL R8, CL
• Code:

     0:	49 d3 d0             	rcl    r8,cl
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 15.0
  • Reference cycles: 11.61
  • UOPS_RETIRED.ANY: 15.0

Experiment 7 (with CL=1, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instruction: TEST R15, R15
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 ff             	test   r15,r15
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.13
  • UOPS_RETIRED.ANY: 16.0

Experiment 8 (with CL=2)

• Instruction: RCL R8, CL
• Code:

     0:	49 d3 d0             	rcl    r8,cl
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 15.0
  • Reference cycles: 11.44
  • UOPS_RETIRED.ANY: 15.0

Experiment 9 (with CL=2, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instruction: TEST R15, R15
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 ff             	test   r15,r15
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.13
  • UOPS_RETIRED.ANY: 16.0

Experiment 1 (with CL=0)

• Instruction: RCL R8, CL
• Chain instructions: CMOVC R15, R15;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;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: 21
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 0f 42 ff          	cmovb  r15,r15
     7:	4d 63 c7             	movsxd r8,r15d
     a:	4d 63 c0             	movsxd r8,r8d
     d:	4d 63 c0             	movsxd r8,r8d
    10:	4d 63 c0             	movsxd r8,r8d
    13:	4d 63 c0             	movsxd r8,r8d
    16:	4d 63 c0             	movsxd r8,r8d
    19:	4d 63 c0             	movsxd r8,r8d
    1c:	4d 63 c0             	movsxd r8,r8d
    1f:	4d 63 c0             	movsxd r8,r8d
    22:	4d 63 c0             	movsxd r8,r8d
    25:	4d 63 c0             	movsxd r8,r8d
    28:	4d 63 c0             	movsxd r8,r8d
    2b:	4d 63 c0             	movsxd r8,r8d
    2e:	4d 63 c0             	movsxd r8,r8d
    31:	4d 63 c0             	movsxd r8,r8d
    34:	4d 63 c0             	movsxd r8,r8d
    37:	4d 63 c0             	movsxd r8,r8d
    3a:	4d 63 c0             	movsxd r8,r8d
    3d:	4d 63 c0             	movsxd r8,r8d
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 21.0
  • Core cycles: 29.67
  • Reference cycles: 23.05
  • UOPS_RETIRED.ANY: 35.0

Experiment 2 (with CL=1)

• Instruction: RCL R8, CL
• Chain instructions: CMOVC R15, R15;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;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: 21
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 0f 42 ff          	cmovb  r15,r15
     7:	4d 63 c7             	movsxd r8,r15d
     a:	4d 63 c0             	movsxd r8,r8d
     d:	4d 63 c0             	movsxd r8,r8d
    10:	4d 63 c0             	movsxd r8,r8d
    13:	4d 63 c0             	movsxd r8,r8d
    16:	4d 63 c0             	movsxd r8,r8d
    19:	4d 63 c0             	movsxd r8,r8d
    1c:	4d 63 c0             	movsxd r8,r8d
    1f:	4d 63 c0             	movsxd r8,r8d
    22:	4d 63 c0             	movsxd r8,r8d
    25:	4d 63 c0             	movsxd r8,r8d
    28:	4d 63 c0             	movsxd r8,r8d
    2b:	4d 63 c0             	movsxd r8,r8d
    2e:	4d 63 c0             	movsxd r8,r8d
    31:	4d 63 c0             	movsxd r8,r8d
    34:	4d 63 c0             	movsxd r8,r8d
    37:	4d 63 c0             	movsxd r8,r8d
    3a:	4d 63 c0             	movsxd r8,r8d
    3d:	4d 63 c0             	movsxd r8,r8d
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 21.0
  • Core cycles: 29.67
  • Reference cycles: 23.05
  • UOPS_RETIRED.ANY: 35.0

Experiment 3 (with CL=2)

• Instruction: RCL R8, CL
• Chain instructions: CMOVC R15, R15;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;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: 21
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 0f 42 ff          	cmovb  r15,r15
     7:	4d 63 c7             	movsxd r8,r15d
     a:	4d 63 c0             	movsxd r8,r8d
     d:	4d 63 c0             	movsxd r8,r8d
    10:	4d 63 c0             	movsxd r8,r8d
    13:	4d 63 c0             	movsxd r8,r8d
    16:	4d 63 c0             	movsxd r8,r8d
    19:	4d 63 c0             	movsxd r8,r8d
    1c:	4d 63 c0             	movsxd r8,r8d
    1f:	4d 63 c0             	movsxd r8,r8d
    22:	4d 63 c0             	movsxd r8,r8d
    25:	4d 63 c0             	movsxd r8,r8d
    28:	4d 63 c0             	movsxd r8,r8d
    2b:	4d 63 c0             	movsxd r8,r8d
    2e:	4d 63 c0             	movsxd r8,r8d
    31:	4d 63 c0             	movsxd r8,r8d
    34:	4d 63 c0             	movsxd r8,r8d
    37:	4d 63 c0             	movsxd r8,r8d
    3a:	4d 63 c0             	movsxd r8,r8d
    3d:	4d 63 c0             	movsxd r8,r8d
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 21.0
  • Core cycles: 29.66
  • Reference cycles: 22.71
  • UOPS_RETIRED.ANY: 35.0

Experiment 1

• Instruction: RCL R8, CL
• Chain instructions: MOVSX RCX, R8D;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX;MOVSX RCX, ECX
• Chain latency: 19
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	49 63 c8             	movsxd rcx,r8d
     6:	48 63 c9             	movsxd rcx,ecx
     9:	48 63 c9             	movsxd rcx,ecx
     c:	48 63 c9             	movsxd rcx,ecx
     f:	48 63 c9             	movsxd rcx,ecx
    12:	48 63 c9             	movsxd rcx,ecx
    15:	48 63 c9             	movsxd rcx,ecx
    18:	48 63 c9             	movsxd rcx,ecx
    1b:	48 63 c9             	movsxd rcx,ecx
    1e:	48 63 c9             	movsxd rcx,ecx
    21:	48 63 c9             	movsxd rcx,ecx
    24:	48 63 c9             	movsxd rcx,ecx
    27:	48 63 c9             	movsxd rcx,ecx
    2a:	48 63 c9             	movsxd rcx,ecx
    2d:	48 63 c9             	movsxd rcx,ecx
    30:	48 63 c9             	movsxd rcx,ecx
    33:	48 63 c9             	movsxd rcx,ecx
    36:	48 63 c9             	movsxd rcx,ecx
    39:	48 63 c9             	movsxd rcx,ecx
  

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 28.0
  • Reference cycles: 21.32
  • UOPS_RETIRED.ANY: 34.0

Experiment 1

• Instruction: RCL R8, CL
• Chain instructions: SETC CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL;MOVSX RCX, CL
• Chain latency: 20
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	0f 92 c1             	setb   cl
     6:	48 0f be c9          	movsx  rcx,cl
     a:	48 0f be c9          	movsx  rcx,cl
     e:	48 0f be c9          	movsx  rcx,cl
    12:	48 0f be c9          	movsx  rcx,cl
    16:	48 0f be c9          	movsx  rcx,cl
    1a:	48 0f be c9          	movsx  rcx,cl
    1e:	48 0f be c9          	movsx  rcx,cl
    22:	48 0f be c9          	movsx  rcx,cl
    26:	48 0f be c9          	movsx  rcx,cl
    2a:	48 0f be c9          	movsx  rcx,cl
    2e:	48 0f be c9          	movsx  rcx,cl
    32:	48 0f be c9          	movsx  rcx,cl
    36:	48 0f be c9          	movsx  rcx,cl
    3a:	48 0f be c9          	movsx  rcx,cl
    3e:	48 0f be c9          	movsx  rcx,cl
    42:	48 0f be c9          	movsx  rcx,cl
    46:	48 0f be c9          	movsx  rcx,cl
    4a:	48 0f be c9          	movsx  rcx,cl
  

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 30.0
  • Reference cycles: 22.88
  • UOPS_RETIRED.ANY: 34.0

Experiment 1 (with CL=0)

• Instruction: RCL R8, CL
• 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;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;TEST R8, R8
• Chain latency: 19
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 63 c0             	movsxd r8,r8d
     6:	4d 63 c0             	movsxd r8,r8d
     9:	4d 63 c0             	movsxd r8,r8d
     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
    2a:	4d 63 c0             	movsxd r8,r8d
    2d:	4d 63 c0             	movsxd r8,r8d
    30:	4d 63 c0             	movsxd r8,r8d
    33:	4d 63 c0             	movsxd r8,r8d
    36:	4d 63 c0             	movsxd r8,r8d
    39:	4d 85 c0             	test   r8,r8
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 26.0
  • Reference cycles: 20.11
  • UOPS_RETIRED.ANY: 34.0

Experiment 2 (with CL=1)

• Instruction: RCL R8, CL
• 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;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;TEST R8, R8
• Chain latency: 19
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 63 c0             	movsxd r8,r8d
     6:	4d 63 c0             	movsxd r8,r8d
     9:	4d 63 c0             	movsxd r8,r8d
     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
    2a:	4d 63 c0             	movsxd r8,r8d
    2d:	4d 63 c0             	movsxd r8,r8d
    30:	4d 63 c0             	movsxd r8,r8d
    33:	4d 63 c0             	movsxd r8,r8d
    36:	4d 63 c0             	movsxd r8,r8d
    39:	4d 85 c0             	test   r8,r8
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 26.0
  • Reference cycles: 19.93
  • UOPS_RETIRED.ANY: 34.0

Experiment 3 (with CL=2)

• Instruction: RCL R8, CL
• 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;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;MOVSX R8, R8D;TEST R8, R8
• Chain latency: 19
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 63 c0             	movsxd r8,r8d
     6:	4d 63 c0             	movsxd r8,r8d
     9:	4d 63 c0             	movsxd r8,r8d
     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
    2a:	4d 63 c0             	movsxd r8,r8d
    2d:	4d 63 c0             	movsxd r8,r8d
    30:	4d 63 c0             	movsxd r8,r8d
    33:	4d 63 c0             	movsxd r8,r8d
    36:	4d 63 c0             	movsxd r8,r8d
    39:	4d 85 c0             	test   r8,r8
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 20.0
  • Core cycles: 26.0
  • Reference cycles: 19.93
  • UOPS_RETIRED.ANY: 34.0

Experiment 4 (with CL=0)

• Instruction: RCL R8, CL
• Chain instruction: TEST R8, R8
• Chain latency: 1
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 c0             	test   r8,r8
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.13
  • UOPS_RETIRED.ANY: 16.0

Experiment 5 (with CL=0, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instructions: TEST R8, R8;;MOV R8, 0
• Chain latency: 1
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 c0             	test   r8,r8
     6:	49 c7 c0 00 00 00 00 	mov    r8,0x0
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 3.0
  • Core cycles: 16.0
  • Reference cycles: 11.96
  • UOPS_RETIRED.ANY: 17.0

Experiment 6 (with CL=1)

• Instruction: RCL R8, CL
• Chain instruction: TEST R8, R8
• Chain latency: 1
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 c0             	test   r8,r8
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.48
  • UOPS_RETIRED.ANY: 16.0

Experiment 7 (with CL=1, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instructions: TEST R8, R8;;MOV R8, 0
• Chain latency: 1
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 c0             	test   r8,r8
     6:	49 c7 c0 00 00 00 00 	mov    r8,0x0
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 3.0
  • Core cycles: 16.0
  • Reference cycles: 12.13
  • UOPS_RETIRED.ANY: 17.0

Experiment 8 (with CL=2)

• Instruction: RCL R8, CL
• Chain instruction: TEST R8, R8
• Chain latency: 1
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 c0             	test   r8,r8
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.13
  • UOPS_RETIRED.ANY: 16.0

Experiment 9 (with CL=2, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instructions: TEST R8, R8;;MOV R8, 0
• Chain latency: 1
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	4d 85 c0             	test   r8,r8
     6:	49 c7 c0 00 00 00 00 	mov    r8,0x0
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 3.0
  • Core cycles: 16.0
  • Reference cycles: 12.13
  • UOPS_RETIRED.ANY: 17.0

Experiment 1 (with CL=0)

• Instruction: RCL R8, CL
• Chain instructions: CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC
• Chain latency: 18
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	f5                   	cmc    
     4:	f5                   	cmc    
     5:	f5                   	cmc    
     6:	f5                   	cmc    
     7:	f5                   	cmc    
     8:	f5                   	cmc    
     9:	f5                   	cmc    
     a:	f5                   	cmc    
     b:	f5                   	cmc    
     c:	f5                   	cmc    
     d:	f5                   	cmc    
     e:	f5                   	cmc    
     f:	f5                   	cmc    
    10:	f5                   	cmc    
    11:	f5                   	cmc    
    12:	f5                   	cmc    
    13:	f5                   	cmc    
    14:	f5                   	cmc    
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 19.0
  • Core cycles: 25.0
  • Reference cycles: 19.59
  • UOPS_RETIRED.ANY: 33.0

Experiment 2 (with CL=1)

• Instruction: RCL R8, CL
• Chain instructions: CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC
• Chain latency: 18
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	f5                   	cmc    
     4:	f5                   	cmc    
     5:	f5                   	cmc    
     6:	f5                   	cmc    
     7:	f5                   	cmc    
     8:	f5                   	cmc    
     9:	f5                   	cmc    
     a:	f5                   	cmc    
     b:	f5                   	cmc    
     c:	f5                   	cmc    
     d:	f5                   	cmc    
     e:	f5                   	cmc    
     f:	f5                   	cmc    
    10:	f5                   	cmc    
    11:	f5                   	cmc    
    12:	f5                   	cmc    
    13:	f5                   	cmc    
    14:	f5                   	cmc    
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 19.0
  • Core cycles: 25.0
  • Reference cycles: 19.41
  • UOPS_RETIRED.ANY: 33.0

Experiment 3 (with CL=2)

• Instruction: RCL R8, CL
• Chain instructions: CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC;CMC
• Chain latency: 18
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	f5                   	cmc    
     4:	f5                   	cmc    
     5:	f5                   	cmc    
     6:	f5                   	cmc    
     7:	f5                   	cmc    
     8:	f5                   	cmc    
     9:	f5                   	cmc    
     a:	f5                   	cmc    
     b:	f5                   	cmc    
     c:	f5                   	cmc    
     d:	f5                   	cmc    
     e:	f5                   	cmc    
     f:	f5                   	cmc    
    10:	f5                   	cmc    
    11:	f5                   	cmc    
    12:	f5                   	cmc    
    13:	f5                   	cmc    
    14:	f5                   	cmc    
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 19.0
  • Core cycles: 25.0
  • Reference cycles: 19.59
  • UOPS_RETIRED.ANY: 33.0

Experiment 4 (with CL=0)

• Instruction: RCL R8, CL
• Code:

     0:	49 d3 d0             	rcl    r8,cl
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 15.01
  • Reference cycles: 11.61
  • UOPS_RETIRED.ANY: 15.0

Experiment 5 (with CL=0, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instruction: MOV R8, 0
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	49 c7 c0 00 00 00 00 	mov    r8,0x0
  

• Init:

  MOV CL, 0

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.31
  • UOPS_RETIRED.ANY: 16.0

Experiment 6 (with CL=1)

• Instruction: RCL R8, CL
• Code:

     0:	49 d3 d0             	rcl    r8,cl
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 15.0
  • Reference cycles: 11.61
  • UOPS_RETIRED.ANY: 15.0

Experiment 7 (with CL=1, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instruction: MOV R8, 0
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	49 c7 c0 00 00 00 00 	mov    r8,0x0
  

• Init:

  MOV CL, 1

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.31
  • UOPS_RETIRED.ANY: 16.0

Experiment 8 (with CL=2)

• Instruction: RCL R8, CL
• Code:

     0:	49 d3 d0             	rcl    r8,cl
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 15.0
  • Reference cycles: 11.61
  • UOPS_RETIRED.ANY: 15.0

Experiment 9 (with CL=2, with dependency-breaking instructions)

• Instruction: RCL R8, CL
• Chain instruction: MOV R8, 0
• Code:

     0:	49 d3 d0             	rcl    r8,cl
     3:	49 c7 c0 00 00 00 00 	mov    r8,0x0
  

• Init:

  MOV CL, 2

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 16.0
  • Reference cycles: 12.13
  • UOPS_RETIRED.ANY: 16.0