VGATHERDPD (ZMM, K, VSIB

Experiment 1

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instruction: VPCMPD K1, XMM15, XMM15, 7

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 9.95
- APERF: 11.51
- UOPS: 47.0

Experiment 2

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VPCMPD K1, XMM15, XMM15, 7
Chain latency: 15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
   d:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  13:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  19:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  1f:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  25:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  2b:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  31:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  37:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  3d:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  43:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  49:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  4f:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  55:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  5b:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  61:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 24.91
- APERF: 28.45
- UOPS: 62.0

Experiment 3

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPCMPD K1, XMM15, XMM15, 7
Chain latency: 15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
   d:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  13:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  19:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  1f:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  25:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  2b:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  31:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  37:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  3d:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  43:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  49:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  4f:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  55:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  5b:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  61:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 24.91
- APERF: 28.99
- UOPS: 62.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instruction: VPCMPD K1, XMM15, XMM15, 7

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 9.87
- APERF: 11.42
- UOPS: 47.0

Experiment 5 (source registers initialized by an instruction of the same kind)

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VANDPD ZMM0, ZMM0, ZMM0;VPCMPD K1, XMM15, XMM15, 7
Chain latency: 15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
   d:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  13:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  19:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  1f:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  25:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  2b:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  31:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  37:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  3d:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  43:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  49:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  4f:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  55:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  5b:	62 f1 fd 48 54 c0    	vandpd zmm0,zmm0,zmm0
  61:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 25.15
- APERF: 29.16
- UOPS: 62.0

Experiment 6 (source registers initialized by an instruction of the same kind)

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPANDD ZMM0, ZMM0, ZMM0;VPCMPD K1, XMM15, XMM15, 7
Chain latency: 15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
   d:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  13:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  19:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  1f:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  25:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  2b:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  31:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  37:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  3d:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  43:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  49:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  4f:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  55:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  5b:	62 f1 7d 48 db c0    	vpandd zmm0,zmm0,zmm0
  61:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 24.75
- APERF: 28.63
- UOPS: 62.0

Latency operand 1 → 2: 11

Experiment 1

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VMOVUPS ZMM0 {K1}, ZMM14;VPCMPD K1, XMM15, XMM15, 7
Chain latency: 1

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 d1 7c 49 10 c6    	vmovups zmm0{k1},zmm14
   d:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 10.34
- APERF: 12.29
- UOPS: 48.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VMOVUPS ZMM0 {K1}, ZMM14;VPCMPD K1, XMM15, XMM15, 7
Chain latency: 1

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 d1 7c 49 10 c6    	vmovups zmm0{k1},zmm14
   d:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 10.81
- APERF: 12.3
- UOPS: 48.0

Latency operand 2 → 1: 19

Experiment 1

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instruction: VPMOVQ2M K1, ZMM0
Chain latency: 5

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f2 fe 48 39 c8    	vpmovq2m k1,zmm0

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 20.68
- APERF: 24.0
- UOPS: 47.0

Experiment 2

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instruction: VPTESTNMQ K1 {K1}, ZMM0, ZMM0
Chain latency: 5

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f2 fe 49 27 c8    	vptestnmq k1{k1},zmm0,zmm0

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 20.68
- APERF: 24.0
- UOPS: 47.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instruction: VPMOVQ2M K1, ZMM0
Chain latency: 5

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f2 fe 48 39 c8    	vpmovq2m k1,zmm0

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 20.68
- APERF: 24.0
- UOPS: 47.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instruction: VPTESTNMQ K1 {K1}, ZMM0, ZMM0
Chain latency: 5

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	62 f2 fe 49 27 c8    	vptestnmq k1{k1},zmm0,zmm0

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 20.84
- APERF: 24.0
- UOPS: 47.0

Latency operand 2 → 2: 4

Experiment 1

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 9.4
- APERF: 11.03
- UOPS: 46.0

Experiment 2

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1
Chain latency: 15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c4 e1 f8 90 c9       	kmovq  k1,k1
   c:	c4 e1 f8 90 c9       	kmovq  k1,k1
  11:	c4 e1 f8 90 c9       	kmovq  k1,k1
  16:	c4 e1 f8 90 c9       	kmovq  k1,k1
  1b:	c4 e1 f8 90 c9       	kmovq  k1,k1
  20:	c4 e1 f8 90 c9       	kmovq  k1,k1
  25:	c4 e1 f8 90 c9       	kmovq  k1,k1
  2a:	c4 e1 f8 90 c9       	kmovq  k1,k1
  2f:	c4 e1 f8 90 c9       	kmovq  k1,k1
  34:	c4 e1 f8 90 c9       	kmovq  k1,k1
  39:	c4 e1 f8 90 c9       	kmovq  k1,k1
  3e:	c4 e1 f8 90 c9       	kmovq  k1,k1
  43:	c4 e1 f8 90 c9       	kmovq  k1,k1
  48:	c4 e1 f8 90 c9       	kmovq  k1,k1
  4d:	c4 e1 f8 90 c9       	kmovq  k1,k1

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 17.08
- APERF: 19.64
- UOPS: 61.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 9.56
- APERF: 11.15
- UOPS: 46.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1;KMOVQ K1, K1
Chain latency: 15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c4 e1 f8 90 c9       	kmovq  k1,k1
   c:	c4 e1 f8 90 c9       	kmovq  k1,k1
  11:	c4 e1 f8 90 c9       	kmovq  k1,k1
  16:	c4 e1 f8 90 c9       	kmovq  k1,k1
  1b:	c4 e1 f8 90 c9       	kmovq  k1,k1
  20:	c4 e1 f8 90 c9       	kmovq  k1,k1
  25:	c4 e1 f8 90 c9       	kmovq  k1,k1
  2a:	c4 e1 f8 90 c9       	kmovq  k1,k1
  2f:	c4 e1 f8 90 c9       	kmovq  k1,k1
  34:	c4 e1 f8 90 c9       	kmovq  k1,k1
  39:	c4 e1 f8 90 c9       	kmovq  k1,k1
  3e:	c4 e1 f8 90 c9       	kmovq  k1,k1
  43:	c4 e1 f8 90 c9       	kmovq  k1,k1
  48:	c4 e1 f8 90 c9       	kmovq  k1,k1
  4d:	c4 e1 f8 90 c9       	kmovq  k1,k1

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 17.08
- APERF: 19.84
- UOPS: 61.0

Latency operand 3 → 1 (address, base register): ≤19

Experiment 1

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VMOVQ R12, XMM0;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c4 c1 f9 7e c4       	vmovq  r12,xmm0
   c:	4d 31 e6             	xor    r14,r12
   f:	4d 31 e6             	xor    r14,r12
  12:	4d 31 e6             	xor    r14,r12
  15:	4d 31 e6             	xor    r14,r12
  18:	4d 31 e6             	xor    r14,r12
  1b:	4d 31 e6             	xor    r14,r12
  1e:	4d 31 e6             	xor    r14,r12
  21:	4d 31 e6             	xor    r14,r12
  24:	4d 31 e6             	xor    r14,r12
  27:	4d 31 e6             	xor    r14,r12
  2a:	4d 31 e6             	xor    r14,r12
  2d:	4d 31 e6             	xor    r14,r12
  30:	4d 31 e6             	xor    r14,r12
  33:	4d 31 e6             	xor    r14,r12
  36:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 29.53
- APERF: 34.0
- UOPS: 62.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VMOVQ R12, XMM0;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;XOR R14, R12;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥15

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c4 c1 f9 7e c4       	vmovq  r12,xmm0
   c:	4d 31 e6             	xor    r14,r12
   f:	4d 31 e6             	xor    r14,r12
  12:	4d 31 e6             	xor    r14,r12
  15:	4d 31 e6             	xor    r14,r12
  18:	4d 31 e6             	xor    r14,r12
  1b:	4d 31 e6             	xor    r14,r12
  1e:	4d 31 e6             	xor    r14,r12
  21:	4d 31 e6             	xor    r14,r12
  24:	4d 31 e6             	xor    r14,r12
  27:	4d 31 e6             	xor    r14,r12
  2a:	4d 31 e6             	xor    r14,r12
  2d:	4d 31 e6             	xor    r14,r12
  30:	4d 31 e6             	xor    r14,r12
  33:	4d 31 e6             	xor    r14,r12
  36:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 29.69
- APERF: 34.5
- UOPS: 62.0

Latency operand 3 → 1 (address, index register): ≤23

Experiment 1

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥14

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
   b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
   f:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  13:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  17:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  1b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  1f:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  23:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  27:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  2b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  2f:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  33:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  37:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  3b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  3f:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 32.04
- APERF: 37.31
- UOPS: 61.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VANDPD YMM14, YMM14, YMM0;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥14

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
   b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
   f:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  13:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  17:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  1b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  1f:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  23:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  27:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  2b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  2f:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  33:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  37:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  3b:	c5 0d 54 f0          	vandpd ymm14,ymm14,ymm0
  3f:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 32.27
- APERF: 37.46
- UOPS: 61.0

Latency operand 3 → 1 (memory): ≤15

Experiment 1

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VANDPD XMM13, XMM0, XMM0;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VMOVSD [R14], XMM13;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥16

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c5 79 54 e8          	vandpd xmm13,xmm0,xmm0
   b:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  10:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  15:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  1a:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  1f:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  24:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  29:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  2e:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  33:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  38:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  3d:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  42:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  47:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  4c:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  51:	c4 41 7b 11 2e       	vmovsd QWORD PTR [r14],xmm13
  56:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 27.26
- APERF: 31.85
- UOPS: 63.0

Experiment 2

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VPAND XMM13, XMM0, XMM0;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VMOVQ [R14], XMM13;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥16

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c5 79 db e8          	vpand  xmm13,xmm0,xmm0
   b:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  10:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  15:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  1a:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  1f:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  24:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  29:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  2e:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  33:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  38:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  3d:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  42:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  47:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  4c:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  51:	c4 41 79 d6 2e       	vmovq  QWORD PTR [r14],xmm13
  56:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14

Show nanoBench command
Results:
- MPERF: 27.73
- APERF: 31.85
- UOPS: 63.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VANDPD XMM13, XMM0, XMM0;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VANDPD XMM13, XMM13, XMM13;VMOVSD [R14], XMM13;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥16

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c5 79 54 e8          	vandpd xmm13,xmm0,xmm0
   b:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  10:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  15:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  1a:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  1f:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  24:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  29:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  2e:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  33:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  38:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  3d:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  42:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  47:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  4c:	c4 41 11 54 ed       	vandpd xmm13,xmm13,xmm13
  51:	c4 41 7b 11 2e       	vmovsd QWORD PTR [r14],xmm13
  56:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 27.34
- APERF: 31.79
- UOPS: 63.0

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

Instruction: VGATHERDPD ZMM0 {K1}, [R14+YMM14]
Chain instructions: VPAND XMM13, XMM0, XMM0;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VPAND XMM13, XMM13, XMM13;VMOVQ [R14], XMM13;VPCMPD K1, XMM15, XMM15, 7
Chain latency: ≥16

Code:

   0:	62 92 fd 49 92 04 36 	vgatherdpd zmm0{k1},QWORD PTR [r14+ymm14*1]
   7:	c5 79 db e8          	vpand  xmm13,xmm0,xmm0
   b:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  10:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  15:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  1a:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  1f:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  24:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  29:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  2e:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  33:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  38:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  3d:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  42:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  47:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  4c:	c4 41 11 db ed       	vpand  xmm13,xmm13,xmm13
  51:	c4 41 79 d6 2e       	vmovq  QWORD PTR [r14],xmm13
  56:	62 d3 05 08 1f cf 07 	vpcmpd k1,xmm15,xmm15,0x7

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];
VXORPS YMM14, YMM14, YMM14;
VGATHERDPD ZMM0  {K1}, [R14+YMM14]

Show nanoBench command
Results:
- MPERF: 27.57
- APERF: 31.79
- UOPS: 63.0

VGATHERDPD (ZMM, K, VSIB_YMM) - Latency

Operands

Latency operand 1 → 1: 11

Latency operand 1 → 2: 11

Latency operand 2 → 1: 19

Latency operand 2 → 2: 4

Latency operand 3 → 1 (address, base register): ≤19

Latency operand 3 → 1 (address, index register): ≤23

Latency operand 3 → 1 (memory): ≤15

Latency operand 1 → 1: 11

Experiment 1

Experiment 2

Experiment 3

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

Experiment 5 (source registers initialized by an instruction of the same kind)

Experiment 6 (source registers initialized by an instruction of the same kind)

Latency operand 1 → 2: 11

Experiment 1

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

Latency operand 2 → 1: 19

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)

Latency operand 2 → 2: 4

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)

Latency operand 3 → 1 (address, base register): ≤19

Experiment 1

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

Latency operand 3 → 1 (address, index register): ≤23

Experiment 1

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

Latency operand 3 → 1 (memory): ≤15

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)