PBLENDVB (XMM, XMM) - Port Usage (IACA 2.3)
With blocking instructions for ports {'0', '1'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.00 Cycles Throughput Bottleneck: Backend. 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 | 2.0 | 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 | pabsb xmm3, xmm4
| 1 | | 1.0 | | | | | | | CP | pabsb xmm5, xmm4
| 1 | 1.0 | | | | | | | | CP | pabsb xmm6, xmm4
| 1 | | 1.0 | | | | | | | CP | pabsb xmm7, xmm4
| 1 | 1.0 | | | | | | | | CP | pabsb xmm8, xmm4
| 1 | | 1.0 | | | | | | | CP | pabsb xmm9, xmm4
| 1 | 1.0 | | | | | | | | CP | pabsb xmm10, xmm4
| 1 | | 1.0 | | | | | | | CP | pabsb xmm11, xmm4
| 1 | 1.0 | | | | | | | | CP | pabsb xmm12, xmm4
| 1 | | 1.0 | | | | | | | CP | pabsb xmm3, xmm4
| 2 | | | | | | 2.0 | | | | pblendvb xmm1, xmm2
Total Num Of Uops: 12
With blocking instructions for ports {'0', '5'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.00 Cycles Throughput Bottleneck: Backend. Port0, Port5
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 5.0 0.0 | 2.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 5.0 | 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 | movq mmx0, mmx1
| 1 | | | | | | 1.0 | | | CP | movq mmx2, mmx1
| 1 | 1.0 | | | | | | | | CP | movq mmx3, mmx1
| 1 | | | | | | 1.0 | | | CP | movq mmx4, mmx1
| 1 | 1.0 | | | | | | | | CP | movq mmx5, mmx1
| 1 | | | | | | 1.0 | | | CP | movq mmx6, mmx1
| 1 | 1.0 | | | | | | | | CP | movq mmx7, mmx1
| 1 | | | | | | 1.0 | | | CP | movq mmx0, mmx1
| 1 | 1.0 | | | | | | | | CP | movq mmx2, mmx1
| 1 | | | | | | 1.0 | | | CP | movq mmx3, mmx1
| 2 | | 2.0 | | | | | | | | pblendvb xmm1, xmm2
Total Num Of Uops: 12
With blocking instructions for ports {'1', '5'}:
Throughput Analysis Report
--------------------------
Block Throughput: 5.00 Cycles Throughput Bottleneck: Backend. Port1, Port5
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 2.0 0.0 | 5.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 5.0 | 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 | lea r8w, ptr [r14]
| 1 | | | | | | 1.0 | | | CP | lea r9w, ptr [r14]
| 1 | | 1.0 | | | | | | | CP | lea r10w, ptr [r14]
| 1 | | | | | | 1.0 | | | CP | lea r11w, ptr [r14]
| 1 | | 1.0 | | | | | | | CP | lea r12w, ptr [r14]
| 1 | | | | | | 1.0 | | | CP | lea bx, ptr [r14]
| 1 | | 1.0 | | | | | | | CP | lea cx, ptr [r14]
| 1 | | | | | | 1.0 | | | CP | lea dx, ptr [r14]
| 1 | | 1.0 | | | | | | | CP | lea r8w, ptr [r14]
| 1 | | | | | | 1.0 | | | CP | lea r9w, ptr [r14]
| 2 | 2.0 | | | | | | | | | pblendvb xmm1, xmm2
Total Num Of Uops: 12
With blocking instructions for ports {'0', '1', '5'}:
Throughput Analysis Report
--------------------------
Block Throughput: 6.62 Cycles Throughput Bottleneck: Dependency chains (possibly between iterations)
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 3.8 0.0 | 3.8 | 0.0 0.0 | 0.0 0.0 | 0.0 | 4.3 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | 0.3 | 0.3 | | | | 0.3 | | | CP | addpd xmm3, xmm4
| 1 | 0.4 | 0.2 | | | | 0.4 | | | | addpd xmm5, xmm4
| 1 | 0.2 | 0.3 | | | | 0.4 | | | | addpd xmm6, xmm4
| 1 | 0.3 | 0.4 | | | | 0.2 | | | | addpd xmm7, xmm4
| 1 | 0.4 | 0.2 | | | | 0.4 | | | | addpd xmm8, xmm4
| 1 | 0.2 | 0.3 | | | | 0.5 | | | | addpd xmm9, xmm4
| 1 | 0.3 | 0.5 | | | | 0.2 | | | | addpd xmm10, xmm4
| 1 | 0.4 | 0.2 | | | | 0.4 | | | | addpd xmm11, xmm4
| 1 | 0.2 | 0.3 | | | | 0.4 | | | | addpd xmm12, xmm4
| 1 | 0.3 | 0.4 | | | | 0.2 | | | CP | addpd xmm3, xmm4
| 2 | 0.6 | 0.6 | | | | 0.9 | | | | pblendvb xmm1, xmm2
Total Num Of Uops: 12
⇨ 2 μops that can only use ports {'0', '1', '5'}