AESENC (XMM, XMM) - Port Usage

With blocking instructions for port '0':

Code:

   0:	66 44 0f 50 c2       	movmskpd r8d,xmm2
   5:	66 44 0f 50 ca       	movmskpd r9d,xmm2
   a:	66 44 0f 50 d2       	movmskpd r10d,xmm2
   f:	66 44 0f 50 da       	movmskpd r11d,xmm2
  14:	66 44 0f 50 e2       	movmskpd r12d,xmm2
  19:	66 0f 50 da          	movmskpd ebx,xmm2
  1d:	66 0f 50 ca          	movmskpd ecx,xmm2
  21:	66 0f 50 d2          	movmskpd edx,xmm2
  25:	66 44 0f 50 c2       	movmskpd r8d,xmm2
  2a:	66 44 0f 50 ca       	movmskpd r9d,xmm2
  2f:	66 44 0f 50 d2       	movmskpd r10d,xmm2
  34:	66 44 0f 50 da       	movmskpd r11d,xmm2
  39:	66 0f 38 dc c1       	aesenc xmm0,xmm1

Init:

MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOVUPD XMM2, [R14];
PXOR XMM0, XMM0;
PXOR XMM1, XMM1

Show nanoBench command
Results:
- Instructions retired: 13.0
- Core cycles: 15.98
- Reference cycles: 14.75
- UOPS_PORT_0: 14.01
- UOPS_PORT_1: -0.01
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: -0.02
- UOPS_RETIRED.ANY: 15.0

⇨ 2 μops that can only use port '0'

With blocking instructions for ports {'0', '5'}:

Code:

   0:	0f 38 1c c1          	pabsb  mm0,mm1
   4:	0f 38 1c d1          	pabsb  mm2,mm1
   8:	0f 38 1c d9          	pabsb  mm3,mm1
   c:	0f 38 1c e1          	pabsb  mm4,mm1
  10:	0f 38 1c e9          	pabsb  mm5,mm1
  14:	0f 38 1c f1          	pabsb  mm6,mm1
  18:	0f 38 1c f9          	pabsb  mm7,mm1
  1c:	0f 38 1c c1          	pabsb  mm0,mm1
  20:	0f 38 1c d1          	pabsb  mm2,mm1
  24:	0f 38 1c d9          	pabsb  mm3,mm1
  28:	0f 38 1c e1          	pabsb  mm4,mm1
  2c:	0f 38 1c e9          	pabsb  mm5,mm1
  30:	0f 38 1c f1          	pabsb  mm6,mm1
  34:	0f 38 1c f9          	pabsb  mm7,mm1
  38:	0f 38 1c c1          	pabsb  mm0,mm1
  3c:	0f 38 1c d1          	pabsb  mm2,mm1
  40:	0f 38 1c d9          	pabsb  mm3,mm1
  44:	0f 38 1c e1          	pabsb  mm4,mm1
  48:	0f 38 1c e9          	pabsb  mm5,mm1
  4c:	0f 38 1c f1          	pabsb  mm6,mm1
  50:	0f 38 1c f9          	pabsb  mm7,mm1
  54:	0f 38 1c c1          	pabsb  mm0,mm1
  58:	0f 38 1c d1          	pabsb  mm2,mm1
  5c:	0f 38 1c d9          	pabsb  mm3,mm1
  60:	66 0f 38 dc c1       	aesenc xmm0,xmm1

Init:

PXOR MM1, MM1;
PXOR XMM0, XMM0;
PXOR XMM1, XMM1

Show nanoBench command
Results:
- Instructions retired: 25.0
- Core cycles: 14.61
- Reference cycles: 14.05
- UOPS_PORT_0: 12.63
- UOPS_PORT_1: -0.09
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 15.13
- UOPS_RETIRED.ANY: 27.0

⇨ One μop that can only use ports {'0', '5'}