VPHADDD (YMM, YMM, YMM) - Port Usage (IACA 3.0)
With blocking instructions for port '1':
Throughput Analysis Report
--------------------------
Block Throughput: 9.95 Cycles Throughput Bottleneck: Dependency chains
Loop Count: 23
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 |
-----------------------------------------------------------------------------------------
| 3 | | 1.0 | | | | | | | vhaddpd xmm3, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm6, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm7, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm8, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm9, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm10, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm11, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm12, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm3, xmm4, xmm5
| 3 | | 1.0 | | | | | | | vhaddpd xmm6, xmm4, xmm5
| 3 | | | | | | 3.0 | | | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 33
With blocking instructions for port '5':
Throughput Analysis Report
--------------------------
Block Throughput: 12.00 Cycles Throughput Bottleneck: Backend
Loop Count: 22
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 | | | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | movd mmx1, r8d
| 1 | | | | | | 1.0 | | | movd mmx2, r8d
| 1 | | | | | | 1.0 | | | movd mmx3, r8d
| 1 | | | | | | 1.0 | | | movd mmx4, r8d
| 1 | | | | | | 1.0 | | | movd mmx5, r8d
| 1 | | | | | | 1.0 | | | movd mmx6, r8d
| 1 | | | | | | 1.0 | | | movd mmx7, r8d
| 1 | | | | | | 1.0 | | | movd mmx0, r8d
| 1 | | | | | | 1.0 | | | movd mmx1, r8d
| 3 | | 1.0 | | | | 2.0 | | | 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: 4.95 Cycles Throughput Bottleneck: Backend
Loop Count: 22
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 | | | | | | | | vblendpd xmm3, xmm4, xmm5, 0x2
| 1 | | 1.0 | | | | | | | vblendpd xmm6, xmm4, xmm5, 0x2
| 1 | 1.0 | | | | | | | | vblendpd xmm7, xmm4, xmm5, 0x2
| 1 | | 1.0 | | | | | | | vblendpd xmm8, xmm4, xmm5, 0x2
| 1 | 1.0 | | | | | | | | vblendpd xmm9, xmm4, xmm5, 0x2
| 1 | | 1.0 | | | | | | | vblendpd xmm10, xmm4, xmm5, 0x2
| 1 | 1.0 | | | | | | | | vblendpd xmm11, xmm4, xmm5, 0x2
| 1 | | 1.0 | | | | | | | vblendpd xmm12, xmm4, xmm5, 0x2
| 1 | 1.0 | | | | | | | | vblendpd xmm3, xmm4, xmm5, 0x2
| 1 | | 1.0 | | | | | | | vblendpd xmm6, xmm4, xmm5, 0x2
| 3 | | | | | | 3.0 | | | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 13
With blocking instructions for ports {'1', '5'}:
Throughput Analysis Report
--------------------------
Block Throughput: 6.53 Cycles Throughput Bottleneck: Backend
Loop Count: 22
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 | | | | | | | lea r8w, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea r9w, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea r10w, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea r11w, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea r12w, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea bx, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea cx, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea dx, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea r8w, ptr [r14]
| 1 | | 0.5 | | | | 0.5 | | | lea r9w, ptr [r14]
| 3 | | 1.0 | | | | 2.0 | | | vphaddd ymm0, ymm1, ymm2
Total Num Of Uops: 13
⇨ One μop that can only use ports {'1', '5'}