VCMPPS (YMM, YMM, YMM, I8)

Experiment 1

Instruction: VCMPPS YMM1, YMM0, YMM2, 2
Chain instructions: VANDPD YMM0, YMM1, YMM1;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0
Chain latency: 5

Code:

   0:	c5 fc c2 ca 02       	vcmpleps ymm1,ymm0,ymm2
   5:	c5 f5 54 c1          	vandpd ymm0,ymm1,ymm1
   9:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
   d:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  11:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  15:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
VMOVUPD YMM0, [R14];
VMOVUPD YMM2, [R14]

Show nanoBench command
Results:
- MPERF: 4.87
- APERF: 6.0
- UOPS: 6.0

Experiment 2 (source registers initialized by an instruction of the same kind)

Instruction: VCMPPS YMM1, YMM0, YMM2, 2
Chain instructions: VANDPD YMM0, YMM1, YMM1;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0
Chain latency: 5

Code:

   0:	c5 fc c2 ca 02       	vcmpleps ymm1,ymm0,ymm2
   5:	c5 f5 54 c1          	vandpd ymm0,ymm1,ymm1
   9:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
   d:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  11:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  15:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
VMOVUPD YMM0, [R14];
VMOVUPD YMM2, [R14];
VCMPPS YMM0, YMM1, YMM2, 2;
VCMPPS YMM2, YMM0, YMM1, 2

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

Experiment 1

Instruction: VCMPPS YMM1, YMM2, YMM0, 2
Chain instructions: VANDPD YMM0, YMM1, YMM1;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0
Chain latency: 5

Code:

   0:	c5 ec c2 c8 02       	vcmpleps ymm1,ymm2,ymm0
   5:	c5 f5 54 c1          	vandpd ymm0,ymm1,ymm1
   9:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
   d:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  11:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  15:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
VMOVUPD YMM2, [R14];
VMOVUPD YMM0, [R14]

Show nanoBench command
Results:
- MPERF: 4.81
- APERF: 6.0
- UOPS: 6.0

Experiment 2 (source registers initialized by an instruction of the same kind)

Instruction: VCMPPS YMM1, YMM2, YMM0, 2
Chain instructions: VANDPD YMM0, YMM1, YMM1;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0;VANDPD YMM0, YMM0, YMM0
Chain latency: 5

Code:

   0:	c5 ec c2 c8 02       	vcmpleps ymm1,ymm2,ymm0
   5:	c5 f5 54 c1          	vandpd ymm0,ymm1,ymm1
   9:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
   d:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  11:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0
  15:	c5 fd 54 c0          	vandpd ymm0,ymm0,ymm0

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
VMOVUPD YMM2, [R14];
VMOVUPD YMM0, [R14];
VCMPPS YMM2, YMM0, YMM1, 2;
VCMPPS YMM0, YMM1, YMM2, 2

Show nanoBench command
Results:
- MPERF: 5.12
- APERF: 6.0
- UOPS: 6.0

VCMPPS (YMM, YMM, YMM, I8) - Latency

Operands

Latency operand 2 → 1: 1

Latency operand 3 → 1: 1

Latency operand 2 → 1: 1

Experiment 1

Experiment 2 (source registers initialized by an instruction of the same kind)

Latency operand 3 → 1: 1

Experiment 1

Experiment 2 (source registers initialized by an instruction of the same kind)