DIVPS (XMM, XMM) - Port Usage

With lfence (to avoid incorrect counts due to replays)

• Code:

     0:	0f 10 d1             	movups xmm2,xmm1
     3:	0f 5e d0             	divps  xmm2,xmm0
     6:	90                   	nop
     7:	90                   	nop
     8:	90                   	nop
     9:	90                   	nop
     a:	90                   	nop
     b:	90                   	nop
     c:	90                   	nop
     d:	90                   	nop
     e:	90                   	nop
     f:	90                   	nop
    10:	0f ae e8             	lfence
  

• Init:

  VZEROALL;
  MOV RAX, 0x54ed392654ed3926;
  MOV RBX, 0x3f99f4c03f99f4c0;
  MOV [R14+0], RBX;
  MOV [R14+8], RBX;
  MOV [R14+16], RBX;
  MOV [R14+24], RBX;
  MOV [R14+32], RBX;
  MOV [R14+40], RBX;
  MOV [R14+48], RBX;
  MOV [R14+56], RBX;
  MOV [R14+64], RAX;
  MOV [R14+72], RAX;
  MOV [R14+80], RAX;
  MOV [R14+88], RAX;
  MOV [R14+96], RAX;
  MOV [R14+104], RAX;
  MOV [R14+112], RAX;
  MOV [R14+120], RAX;
  MOVUPS XMM0, [R14];
  MOVUPS XMM1, [R14+64];
  MOVUPS XMM2, XMM1

• Show nanoBench command
• Results:
  • Instructions retired: 13.0
  • Core cycles: 23.0
  • Reference cycles: 15.82
  • UOPS_DISPATCHED.INT_EU_ALL: 1.0
  • UOPS_DISPATCHED.ALU: 0.99
  • UOPS_DISPATCHED.LD: 0.0
  • UOPS_DISPATCHED.SLOW: 0.0
  • UOPS_DISPATCHED.STD: 0.0
  • UOPS_DISPATCHED.SHIFT: 0.0
  • UOPS_DISPATCHED.JMP: 0.0
  • UOPS_DISPATCHED.STA: 0.0

• Code:

     0:	0f 10 d1             	movups xmm2,xmm1
  

• Init:

  VZEROALL;
  MOV RAX, 0x54ed392654ed3926;
  MOV RBX, 0x3f99f4c03f99f4c0;
  MOV [R14+0], RBX;
  MOV [R14+8], RBX;
  MOV [R14+16], RBX;
  MOV [R14+24], RBX;
  MOV [R14+32], RBX;
  MOV [R14+40], RBX;
  MOV [R14+48], RBX;
  MOV [R14+56], RBX;
  MOV [R14+64], RAX;
  MOV [R14+72], RAX;
  MOV [R14+80], RAX;
  MOV [R14+88], RAX;
  MOV [R14+96], RAX;
  MOV [R14+104], RAX;
  MOV [R14+112], RAX;
  MOV [R14+120], RAX;
  MOVUPS XMM0, [R14];
  MOVUPS XMM1, [R14+64];
  MOVUPS XMM2, XMM1

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 0.13
  • Reference cycles: 0.17
  • UOPS_DISPATCHED.INT_EU_ALL: 0.01
  • UOPS_DISPATCHED.ALU: 0.0
  • UOPS_DISPATCHED.LD: 0.0
  • UOPS_DISPATCHED.SLOW: 0.0
  • UOPS_DISPATCHED.STD: 0.0
  • UOPS_DISPATCHED.SHIFT: 0.0
  • UOPS_DISPATCHED.JMP: 0.0
  • UOPS_DISPATCHED.STA: 0.0

With blocking instructions for ports {'0', '1'}:

• Code:

     0:	66 41 0f 5f 4e 40    	maxpd  xmm1,XMMWORD PTR [r14+0x40]
     6:	66 41 0f 5f 5e 50    	maxpd  xmm3,XMMWORD PTR [r14+0x50]
     c:	66 41 0f 5f 66 60    	maxpd  xmm4,XMMWORD PTR [r14+0x60]
    12:	66 41 0f 5f 6e 70    	maxpd  xmm5,XMMWORD PTR [r14+0x70]
    18:	66 41 0f 5f b6 80 00 	maxpd  xmm6,XMMWORD PTR [r14+0x80]
    1f:	00 00 
    21:	66 41 0f 5f be 90 00 	maxpd  xmm7,XMMWORD PTR [r14+0x90]
    28:	00 00 
    2a:	66 45 0f 5f 86 a0 00 	maxpd  xmm8,XMMWORD PTR [r14+0xa0]
    31:	00 00 
    33:	66 45 0f 5f 8e b0 00 	maxpd  xmm9,XMMWORD PTR [r14+0xb0]
    3a:	00 00 
    3c:	66 45 0f 5f 96 c0 00 	maxpd  xmm10,XMMWORD PTR [r14+0xc0]
    43:	00 00 
    45:	66 45 0f 5f 9e d0 00 	maxpd  xmm11,XMMWORD PTR [r14+0xd0]
    4c:	00 00 
    4e:	0f 10 d1             	movups xmm2,xmm1
    51:	0f 5e d0             	divps  xmm2,xmm0
  

• Init:

  VZEROALL;
  MOV RAX, 0x4000000040000000;
  MOV [R14+0], RAX;
  MOV [R14+8], RAX;
  MOVUPD XMM1, [R14];
  MOV [R14+64], RAX;
  MOV [R14+72], RAX;
  MOVUPD XMM3, [R14];
  MOV [R14+80], RAX;
  MOV [R14+88], RAX;
  MOVUPD XMM4, [R14];
  MOV [R14+96], RAX;
  MOV [R14+104], RAX;
  MOVUPD XMM5, [R14];
  MOV [R14+112], RAX;
  MOV [R14+120], RAX;
  MOVUPD XMM6, [R14];
  MOV [R14+128], RAX;
  MOV [R14+136], RAX;
  MOVUPD XMM7, [R14];
  MOV [R14+144], RAX;
  MOV [R14+152], RAX;
  MOVUPD XMM8, [R14];
  MOV [R14+160], RAX;
  MOV [R14+168], RAX;
  MOVUPD XMM9, [R14];
  MOV [R14+176], RAX;
  MOV [R14+184], RAX;
  MOVUPD XMM10, [R14];
  MOV [R14+192], RAX;
  MOV [R14+200], RAX;
  MOVUPD XMM11, [R14];
  MOV [R14+208], RAX;
  MOV [R14+216], RAX;
  MOVUPD XMM12, [R14];
  MOV [R14+224], RAX;
  MOV [R14+232], RAX;
  MOV RAX, 0x54ed392654ed3926;
  MOV RBX, 0x3f99f4c03f99f4c0;
  MOV [R14+0], RBX;
  MOV [R14+8], RBX;
  MOV [R14+16], RBX;
  MOV [R14+24], RBX;
  MOV [R14+32], RBX;
  MOV [R14+40], RBX;
  MOV [R14+48], RBX;
  MOV [R14+56], RBX;
  MOVUPS XMM0, [R14];
  MOVUPS XMM1, [R14+64];
  MOVUPS XMM2, XMM1

• Show nanoBench command
• Results:
  • Instructions retired: 12.0
  • Core cycles: 6.26
  • Reference cycles: 4.55
  • UOPS_DISPATCHED.V0: 5.51
  • UOPS_DISPATCHED.V1: 5.49
  • UOPS_DISPATCHED.V2: 0.0
  • UOPS_DISPATCHED.V3: 0.0