CMOVBE (R32, R32) - Throughput and Uops (IACA 2.2)


With different registers for different operands

With 1 independent instruction

Throughput Analysis Report
--------------------------
Block Throughput: 0.75 Cycles       Throughput Bottleneck: FrontEnd, Port0, Port1, Port5, Port6

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.8    0.0  | 0.8  | 0.0    0.0  | 0.0    0.0  | 0.0  | 0.8  | 0.8  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   3    | 0.8       | 0.8 |           |           |     | 0.8 | 0.8 |     | CP | cmovbe r8d, r9d
Total Num Of Uops: 3

With 12 independent instructions


Throughput Analysis Report
--------------------------
Block Throughput: 9.00 Cycles       Throughput Bottleneck: FrontEnd, Port0, Port1, Port5, Port6

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 9.0    0.0  | 9.0  | 0.0    0.0  | 0.0    0.0  | 0.0  | 9.0  | 9.0  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   3    | 1.0       | 1.0 |           |           |     |     | 1.0 |     | CP | cmovbe r8d, r9d
|   3    | 1.0       |     |           |           |     | 1.0 | 1.0 |     | CP | cmovbe r10d, r9d
|   3    | 1.0       | 1.0 |           |           |     | 1.0 |     |     | CP | cmovbe r11d, r9d
|   3    |           | 1.0 |           |           |     | 1.0 | 1.0 |     | CP | cmovbe r12d, r9d
|   3    | 1.0       | 1.0 |           |           |     |     | 1.0 |     | CP | cmovbe r13d, r9d
|   3    | 1.0       |     |           |           |     | 1.0 | 1.0 |     | CP | cmovbe r14d, r9d
|   3    | 1.0       | 1.0 |           |           |     | 1.0 |     |     | CP | cmovbe ebx, r9d
|   3    |           | 1.0 |           |           |     | 1.0 | 1.0 |     | CP | cmovbe ecx, r9d
|   3    | 1.0       | 1.0 |           |           |     |     | 1.0 |     | CP | cmovbe edx, r9d
|   3    | 1.0       |     |           |           |     | 1.0 | 1.0 |     | CP | cmovbe edi, r9d
|   3    | 1.0       | 1.0 |           |           |     | 1.0 |     |     | CP | cmovbe esi, r9d
|   3    |           | 1.0 |           |           |     | 1.0 | 1.0 |     | CP | cmovbe ebp, r9d
Total Num Of Uops: 36

With the same register for for different operands

Throughput Analysis Report
--------------------------
Block Throughput: 3.00 Cycles       Throughput Bottleneck: Dependency chains (possibly between iterations)

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
/home/abel/code/iaca//iaca-version-2.2/bin/iaca.sh: line 16: 181620 Segmentation fault      (core dumped) LD_LIBRARY_PATH="$path/../lib:$LD_LIBRARY_PATH" $path/iaca $@

With the -no_interiteration flag

Throughput Analysis Report
--------------------------
Block Throughput: 0.75 Cycles       Throughput Bottleneck: FrontEnd, Port0, Port1, Port5, Port6

Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |  6   |  7   |
---------------------------------------------------------------------------------------
| Cycles | 0.8    0.0  | 0.8  | 0.0    0.0  | 0.0    0.0  | 0.0  | 0.8  | 0.8  | 0.0  |
---------------------------------------------------------------------------------------


| Num Of |                    Ports pressure in cycles                     |    |
|  Uops  |  0  - DV  |  1  |  2  -  D  |  3  -  D  |  4  |  5  |  6  |  7  |    |
---------------------------------------------------------------------------------
|   3    | 0.8       | 0.8 |           |           |     | 0.8 | 0.8 |     | CP | cmovbe r8d, r9d
Total Num Of Uops: 3