VPOPCNTQ (ZMM, ZMM)

Experiment 1

Instruction: VPOPCNTQ ZMM1, ZMM0
Chain instructions: VSHUFPD ZMM0, ZMM1, ZMM1, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0
Chain latency: 5

Code:

   0:	62 f2 fd 48 55 c8    	vpopcntq zmm1,zmm0
   6:	62 f1 f5 48 c6 c1 00 	vshufpd zmm0,zmm1,zmm1,0x0
   d:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0
  14:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0
  1b:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0
  22:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
VXORPS ZMM0, ZMM0, ZMM0

Show nanoBench command
Results:
- Instructions retired: 6.0
- Core cycles: 8.0
- Reference cycles: 4.85
- UOPS_EXECUTED.THREAD: 6.0

Experiment 2

Instruction: VPOPCNTQ ZMM1, ZMM0
Chain instructions: VPANDD ZMM0, ZMM1, ZMM1;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0
Chain latency: 5

Code:

   0:	62 f2 fd 48 55 c8    	vpopcntq zmm1,zmm0
   6:	62 f1 75 48 db c1    	vpandd zmm0,zmm1,zmm1
   c:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  12:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  18:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  1e:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
VXORPS ZMM0, ZMM0, ZMM0

Show nanoBench command
Results:
- Instructions retired: 6.0
- Core cycles: 8.0
- Reference cycles: 3.99
- UOPS_EXECUTED.THREAD: 6.0

Experiment 3 (source registers initialized by an instruction of the same kind)

Instruction: VPOPCNTQ ZMM1, ZMM0
Chain instructions: VSHUFPD ZMM0, ZMM1, ZMM1, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0;VSHUFPD ZMM0, ZMM0, ZMM0, 0
Chain latency: 5

Code:

   0:	62 f2 fd 48 55 c8    	vpopcntq zmm1,zmm0
   6:	62 f1 f5 48 c6 c1 00 	vshufpd zmm0,zmm1,zmm1,0x0
   d:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0
  14:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0
  1b:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0
  22:	62 f1 fd 48 c6 c0 00 	vshufpd zmm0,zmm0,zmm0,0x0

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
VXORPS ZMM0, ZMM0, ZMM0;
VPOPCNTQ ZMM0, ZMM1

Show nanoBench command
Results:
- Instructions retired: 6.0
- Core cycles: 8.09
- Reference cycles: 3.81
- UOPS_EXECUTED.THREAD: 6.0

Experiment 4 (source registers initialized by an instruction of the same kind)

Instruction: VPOPCNTQ ZMM1, ZMM0
Chain instructions: VPANDD ZMM0, ZMM1, ZMM1;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0
Chain latency: 5

Code:

   0:	62 f2 fd 48 55 c8    	vpopcntq zmm1,zmm0
   6:	62 f1 75 48 db c1    	vpandd zmm0,zmm1,zmm1
   c:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  12:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  18:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  1e:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
VXORPS ZMM0, ZMM0, ZMM0;
VPOPCNTQ ZMM0, ZMM1

Show nanoBench command
Results:
- Instructions retired: 6.0
- Core cycles: 8.0
- Reference cycles: 5.2
- UOPS_EXECUTED.THREAD: 6.0

VPOPCNTQ (ZMM, ZMM) - Latency

Operands

Latency operand 2 → 1: 3

Latency operand 2 → 1: 3

Experiment 1

Experiment 2

Experiment 3 (source registers initialized by an instruction of the same kind)

Experiment 4 (source registers initialized by an instruction of the same kind)