VPHADDD (YMM, YMM, YMM) - Port Usage (IACA 2.1)


With blocking instructions for port '1':

Throughput Analysis Report
--------------------------
Block Throughput: 10.00 Cycles       Throughput Bottleneck: Port1

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.0    0.0  | 10.0 | 0.0    0.0  | 0.0    0.0  | 0.0  | 3.0  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep r8d, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep r11d, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep r12d, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep ebx, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep ecx, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep edx, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep r8d, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep r11d, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep r12d, r9d, r10d
|   1    |           | 1.0 |           |           |     |     |     |     | CP | pdep ebx, r9d, r10d
|   3    |           |     |           |           |     | 3.0 |     |     |    | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 13

With blocking instructions for port '5':

Throughput Analysis Report
--------------------------
Block Throughput: 12.00 Cycles       Throughput Bottleneck: Port5

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.0    0.0  | 1.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 12.0 | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx0, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx1, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx2, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx3, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx4, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx5, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx6, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx7, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx0, r8d
|   1    |           |     |           |           |     | 1.0 |     |     | CP | movd mmx1, r8d
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 13
⇨ 2 μops that can only use port '5'

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

Throughput Analysis Report
--------------------------
Block Throughput: 5.00 Cycles       Throughput Bottleneck: Port0, Port1

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 5.0    0.0  | 5.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 3.0  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vmulpd xmm3, xmm4, xmm5
|   1    |           | 1.0 |           |           |     |     |     |     | CP | vmulpd xmm6, xmm4, xmm5
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vmulpd xmm7, xmm4, xmm5
|   1    |           | 1.0 |           |           |     |     |     |     | CP | vmulpd xmm8, xmm4, xmm5
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vmulpd xmm9, xmm4, xmm5
|   1    |           | 1.0 |           |           |     |     |     |     | CP | vmulpd xmm10, xmm4, xmm5
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vmulpd xmm11, xmm4, xmm5
|   1    |           | 1.0 |           |           |     |     |     |     | CP | vmulpd xmm12, xmm4, xmm5
|   1    | 1.0       |     |           |           |     |     |     |     | CP | vmulpd xmm3, xmm4, xmm5
|   1    |           | 1.0 |           |           |     |     |     |     | CP | vmulpd xmm6, xmm4, xmm5
|   3    |           |     |           |           |     | 3.0 |     |     |    | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 13

With blocking instructions for ports {'1', '5'}:

Throughput Analysis Report
--------------------------
Block Throughput: 6.50 Cycles       Throughput Bottleneck: Port1, Port5

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.0    0.0  | 6.5  | 0.0    0.0  | 0.0    0.0  | 0.0  | 6.5  | 0.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   1    |           | 1.0 |           |           |     |     |     |     | CP | lea r8w, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea r9w, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea r10w, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea r11w, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea r12w, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea bx, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea cx, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea dx, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea r8w, ptr [r14]
|   1    |           | 0.5 |           |           |     | 0.5 |     |     | CP | lea r9w, ptr [r14]
|   3    |           | 1.0 |           |           |     | 2.0 |     |     | CP | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 13
⇨ One μop that can only use ports {'1', '5'}