VCVTPD2PS (XMM, YMM) - Port Usage

With blocking instructions for port '5':

• Code:

     0:	41 0f 6e c0          	movd   mm0,r8d
     4:	41 0f 6e c8          	movd   mm1,r8d
     8:	41 0f 6e d0          	movd   mm2,r8d
     c:	41 0f 6e d8          	movd   mm3,r8d
    10:	41 0f 6e e0          	movd   mm4,r8d
    14:	41 0f 6e e8          	movd   mm5,r8d
    18:	41 0f 6e f0          	movd   mm6,r8d
    1c:	41 0f 6e f8          	movd   mm7,r8d
    20:	41 0f 6e c0          	movd   mm0,r8d
    24:	41 0f 6e c8          	movd   mm1,r8d
    28:	c5 fd 5a c1          	vcvtpd2ps xmm0,ymm1
  

• 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 YMM1, [R14]

• Show nanoBench command
• Results:
  • Instructions retired: 11.0
  • Core cycles: 11.03
  • Reference cycles: 8.0
  • UOPS_PORT_5B: 11.0
  • UOPS_PORT_5B>=2: 0.0

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

• Code:

     0:	c4 e2 61 de d4       	vaesdec xmm2,xmm3,xmm4
     5:	c4 e2 61 de ec       	vaesdec xmm5,xmm3,xmm4
     a:	c4 e2 61 de f4       	vaesdec xmm6,xmm3,xmm4
     f:	c4 e2 61 de fc       	vaesdec xmm7,xmm3,xmm4
    14:	c4 62 61 de c4       	vaesdec xmm8,xmm3,xmm4
    19:	c4 62 61 de cc       	vaesdec xmm9,xmm3,xmm4
    1e:	c4 62 61 de d4       	vaesdec xmm10,xmm3,xmm4
    23:	c4 62 61 de dc       	vaesdec xmm11,xmm3,xmm4
    28:	c4 62 61 de e4       	vaesdec xmm12,xmm3,xmm4
    2d:	c4 e2 61 de d4       	vaesdec xmm2,xmm3,xmm4
    32:	c5 fd 5a c1          	vcvtpd2ps xmm0,ymm1
  

• Init:

  MOV R15, 10000;
  L: VADDPS YMM0, YMM1, YMM1;
  VADDPS YMM0, YMM1, YMM1;
  DEC R15;
  JNZ L;
  VZEROALL;
  VXORPS XMM3, XMM3, XMM3;
  VXORPS XMM4, XMM4, XMM4;
  MOV RAX, 0x4000000040000000;
  MOV [R14+0], RAX;
  MOV [R14+8], RAX;
  MOV [R14+16], RAX;
  MOV [R14+24], RAX;
  VMOVUPD YMM1, [R14]

• Show nanoBench command
• Results:
  • Instructions retired: 11.0
  • Core cycles: 5.57
  • Reference cycles: 4.32
  • UOPS_PORT_0: 5.5
  • UOPS_PORT_1: 5.5