| # NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py |
| # RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s |
| |
| # perf stat reports a throughput of 1.00 IPC for this code snippet. |
| |
| # The ILP is limited by the false dependency on %dx. So, the mov cannot execute |
| # in parallel with the add. |
| |
| add %cx, %dx |
| mov %ax, %dx |
| xor %bx, %dx |
| |
| # CHECK: Iterations: 1500 |
| # CHECK-NEXT: Instructions: 4500 |
| # CHECK-NEXT: Total Cycles: 4503 |
| # CHECK-NEXT: Dispatch Width: 2 |
| # CHECK-NEXT: IPC: 1.00 |
| # CHECK-NEXT: Block RThroughput: 1.5 |
| |
| # CHECK: Instruction Info: |
| # CHECK-NEXT: [1]: #uOps |
| # CHECK-NEXT: [2]: Latency |
| # CHECK-NEXT: [3]: RThroughput |
| # CHECK-NEXT: [4]: MayLoad |
| # CHECK-NEXT: [5]: MayStore |
| # CHECK-NEXT: [6]: HasSideEffects (U) |
| |
| # CHECK: [1] [2] [3] [4] [5] [6] Instructions: |
| # CHECK-NEXT: 1 1 0.50 addw %cx, %dx |
| # CHECK-NEXT: 1 1 0.50 movw %ax, %dx |
| # CHECK-NEXT: 1 1 0.50 xorw %bx, %dx |
| |
| # CHECK: Resources: |
| # CHECK-NEXT: [0] - JALU0 |
| # CHECK-NEXT: [1] - JALU1 |
| # CHECK-NEXT: [2] - JDiv |
| # CHECK-NEXT: [3] - JFPA |
| # CHECK-NEXT: [4] - JFPM |
| # CHECK-NEXT: [5] - JFPU0 |
| # CHECK-NEXT: [6] - JFPU1 |
| # CHECK-NEXT: [7] - JLAGU |
| # CHECK-NEXT: [8] - JMul |
| # CHECK-NEXT: [9] - JSAGU |
| # CHECK-NEXT: [10] - JSTC |
| # CHECK-NEXT: [11] - JVALU0 |
| # CHECK-NEXT: [12] - JVALU1 |
| # CHECK-NEXT: [13] - JVIMUL |
| |
| # CHECK: Resource pressure per iteration: |
| # CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] |
| # CHECK-NEXT: 1.50 1.50 - - - - - - - - - - - - |
| |
| # CHECK: Resource pressure by instruction: |
| # CHECK-NEXT: [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] Instructions: |
| # CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - addw %cx, %dx |
| # CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - movw %ax, %dx |
| # CHECK-NEXT: 0.50 0.50 - - - - - - - - - - - - xorw %bx, %dx |
| |
| # CHECK: Timeline view: |
| # CHECK-NEXT: 01 |
| # CHECK-NEXT: Index 0123456789 |
| |
| # CHECK: [0,0] DeER . .. addw %cx, %dx |
| # CHECK-NEXT: [0,1] D=eER. .. movw %ax, %dx |
| # CHECK-NEXT: [0,2] .D=eER .. xorw %bx, %dx |
| # CHECK-NEXT: [1,0] .D==eER .. addw %cx, %dx |
| # CHECK-NEXT: [1,1] . D==eER .. movw %ax, %dx |
| # CHECK-NEXT: [1,2] . D===eER .. xorw %bx, %dx |
| # CHECK-NEXT: [2,0] . D===eER.. addw %cx, %dx |
| # CHECK-NEXT: [2,1] . D====eER. movw %ax, %dx |
| # CHECK-NEXT: [2,2] . D====eER xorw %bx, %dx |
| |
| # CHECK: Average Wait times (based on the timeline view): |
| # CHECK-NEXT: [0]: Executions |
| # CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue |
| # CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready |
| # CHECK-NEXT: [3]: Average time elapsed from WB until retire stage |
| |
| # CHECK: [0] [1] [2] [3] |
| # CHECK-NEXT: 0. 3 2.7 0.3 0.0 addw %cx, %dx |
| # CHECK-NEXT: 1. 3 3.3 0.0 0.0 movw %ax, %dx |
| # CHECK-NEXT: 2. 3 3.7 0.0 0.0 xorw %bx, %dx |
