VMOVNTPS (M512, ZMM)

Experiment 1

Instruction: VMOVNTPS zmmword ptr [R14], ZMM0
Chain instructions: MOV R12, [R14];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R14, R12; XOR R14, R12
Chain latency: ≥6

Code:

   0:	62 d1 7c 48 2b 06    	vmovntps ZMMWORD PTR [r14],zmm0
   6:	4d 8b 26             	mov    r12,QWORD PTR [r14]
   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 31 e6             	xor    r14,r12
  18:	4d 31 e6             	xor    r14,r12

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
MOV [R14+32], RAX;
MOV [R14+40], RAX;
MOV [R14+48], RAX;
MOV [R14+56], RAX;
VMOVUPD ZMM0, [R14]

Show nanoBench command
Results:
- MPERF: 11.02
- APERF: 16.08
- UOPS: 9.0

Experiment 2 (with additional nop)

Instruction: VMOVNTPS zmmword ptr [R14], ZMM0
Chain instructions: MOV R12, [R14];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R14, R12; XOR R14, R12;nop
Chain latency: ≥6

Code:

   0:	62 d1 7c 48 2b 06    	vmovntps ZMMWORD PTR [r14],zmm0
   6:	4d 8b 26             	mov    r12,QWORD PTR [r14]
   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 31 e6             	xor    r14,r12
  18:	4d 31 e6             	xor    r14,r12
  1b:	90                   	nop

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
MOV [R14+32], RAX;
MOV [R14+40], RAX;
MOV [R14+48], RAX;
MOV [R14+56], RAX;
VMOVUPD ZMM0, [R14]

Show nanoBench command
Results:
- MPERF: 11.02
- APERF: 16.1
- UOPS: 10.0

Latency operand 1 → 1 (address, index register): ≤10

Experiment 1

Instruction: VMOVNTPS zmmword ptr [R14+R13], ZMM0
Chain instructions: MOV R12, [R14+R13];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R13, R12; XOR R13, R12
Chain latency: ≥6

Code:

   0:	62 91 7c 48 2b 04 2e 	vmovntps ZMMWORD PTR [r14+r13*1],zmm0
   7:	4f 8b 24 2e          	mov    r12,QWORD PTR [r14+r13*1]
   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 31 e5             	xor    r13,r12
  1a:	4d 31 e5             	xor    r13,r12

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
MOV [R14+32], RAX;
MOV [R14+40], RAX;
MOV [R14+48], RAX;
MOV [R14+56], RAX;
VMOVUPD ZMM0, [R14];
XOR R13, R13

Show nanoBench command
Results:
- MPERF: 11.02
- APERF: 16.08
- UOPS: 9.0

Experiment 2 (with additional nop)

Instruction: VMOVNTPS zmmword ptr [R14+R13], ZMM0
Chain instructions: MOV R12, [R14+R13];MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;MOVSX R12, R12D;XOR R13, R12; XOR R13, R12;nop
Chain latency: ≥6

Code:

   0:	62 91 7c 48 2b 04 2e 	vmovntps ZMMWORD PTR [r14+r13*1],zmm0
   7:	4f 8b 24 2e          	mov    r12,QWORD PTR [r14+r13*1]
   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 31 e5             	xor    r13,r12
  1a:	4d 31 e5             	xor    r13,r12
  1d:	90                   	nop

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
MOV [R14+32], RAX;
MOV [R14+40], RAX;
MOV [R14+48], RAX;
MOV [R14+56], RAX;
VMOVUPD ZMM0, [R14];
XOR R13, R13

Show nanoBench command
Results:
- MPERF: 11.02
- APERF: 16.09
- UOPS: 10.0

Latency operand 2 → 1: ≤10

Experiment 1

Instruction: VMOVNTPS zmmword ptr [R14], ZMM0
Chain instructions: VMOVUPD XMM13, [R14];VANDPD XMM0, XMM13, XMM13;VANDPD XMM0, XMM0, XMM0;VANDPD XMM0, XMM0, XMM0;VANDPD XMM0, XMM0, XMM0;VANDPD XMM0, XMM0, XMM0
Chain latency: ≥11

Code:

   0:	62 d1 7c 48 2b 06    	vmovntps ZMMWORD PTR [r14],zmm0
   6:	c4 41 79 10 2e       	vmovupd xmm13,XMMWORD PTR [r14]
   b:	c4 c1 11 54 c5       	vandpd xmm0,xmm13,xmm13
  10:	c5 f9 54 c0          	vandpd xmm0,xmm0,xmm0
  14:	c5 f9 54 c0          	vandpd xmm0,xmm0,xmm0
  18:	c5 f9 54 c0          	vandpd xmm0,xmm0,xmm0
  1c:	c5 f9 54 c0          	vandpd xmm0,xmm0,xmm0

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
MOV [R14+32], RAX;
MOV [R14+40], RAX;
MOV [R14+48], RAX;
MOV [R14+56], RAX;
VMOVUPD ZMM0, [R14]

Show nanoBench command
Results:
- MPERF: 14.44
- APERF: 20.99
- UOPS: 8.0

Experiment 2

Instruction: VMOVNTPS zmmword ptr [R14], ZMM0
Chain instructions: VMOVDQU XMM13, [R14];VPAND XMM0, XMM13, XMM13;VPAND XMM0, XMM0, XMM0;VPAND XMM0, XMM0, XMM0;VPAND XMM0, XMM0, XMM0;VPAND XMM0, XMM0, XMM0
Chain latency: ≥11

Code:

   0:	62 d1 7c 48 2b 06    	vmovntps ZMMWORD PTR [r14],zmm0
   6:	c4 41 7a 6f 2e       	vmovdqu xmm13,XMMWORD PTR [r14]
   b:	c4 c1 11 db c5       	vpand  xmm0,xmm13,xmm13
  10:	c5 f9 db c0          	vpand  xmm0,xmm0,xmm0
  14:	c5 f9 db c0          	vpand  xmm0,xmm0,xmm0
  18:	c5 f9 db c0          	vpand  xmm0,xmm0,xmm0
  1c:	c5 f9 db c0          	vpand  xmm0,xmm0,xmm0

Init:

MOV R15, 10000;
L: VADDPS ZMM0, ZMM1, ZMM1;
VADDPS ZMM0, ZMM1, ZMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
MOV [R14+32], RAX;
MOV [R14+40], RAX;
MOV [R14+48], RAX;
MOV [R14+56], RAX;
VMOVUPD ZMM0, [R14]

Show nanoBench command
Results:
- MPERF: 14.44
- APERF: 21.0
- UOPS: 8.0

VMOVNTPS (M512, ZMM) - Latency

Operands

Latency operand 1 → 1 (address, base register): ≤10

Latency operand 1 → 1 (address, index register): ≤10

Latency operand 2 → 1: ≤10

Latency operand 1 → 1 (address, base register): ≤10

Experiment 1

Experiment 2 (with additional nop)

Latency operand 1 → 1 (address, index register): ≤10

Experiment 1

Experiment 2 (with additional nop)

Latency operand 2 → 1: ≤10

Experiment 1

Experiment 2