| # NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py |
| # RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -iterations=100 -resource-pressure=false -timeline -timeline-max-iterations=2 < %s | FileCheck %s |
| |
| ## Sets register RAX. |
| imulq $5, %rcx, %rax |
| |
| ## Kills the previous definition of RAX. |
| ## The upper portion of RAX is cleared. |
| lzcnt %ecx, %eax |
| |
| ## The AND can start immediately after the LZCNT. |
| ## It doesn't need to wait for the IMUL. |
| and %rcx, %rax |
| bsf %rax, %rcx |
| |
| # CHECK: Iterations: 100 |
| # CHECK-NEXT: Instructions: 400 |
| # CHECK-NEXT: Total Cycles: 803 |
| # CHECK-NEXT: Total uOps: 400 |
| |
| # CHECK: Dispatch Width: 4 |
| # CHECK-NEXT: uOps Per Cycle: 0.50 |
| # CHECK-NEXT: IPC: 0.50 |
| # CHECK-NEXT: Block RThroughput: 3.0 |
| |
| # 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 3 1.00 imulq $5, %rcx, %rax |
| # CHECK-NEXT: 1 3 1.00 lzcntl %ecx, %eax |
| # CHECK-NEXT: 1 1 0.33 andq %rcx, %rax |
| # CHECK-NEXT: 1 3 1.00 bsfq %rax, %rcx |
| |
| # CHECK: Timeline view: |
| # CHECK-NEXT: 012345678 |
| # CHECK-NEXT: Index 0123456789 |
| |
| # CHECK: [0,0] DeeeER . . . imulq $5, %rcx, %rax |
| # CHECK-NEXT: [0,1] D=eeeER . . . lzcntl %ecx, %eax |
| # CHECK-NEXT: [0,2] D====eER . . . andq %rcx, %rax |
| # CHECK-NEXT: [0,3] D=====eeeER . . bsfq %rax, %rcx |
| # CHECK-NEXT: [1,0] .D=======eeeER . . imulq $5, %rcx, %rax |
| # CHECK-NEXT: [1,1] .D========eeeER. . lzcntl %ecx, %eax |
| # CHECK-NEXT: [1,2] .D===========eER . andq %rcx, %rax |
| # CHECK-NEXT: [1,3] .D============eeeER bsfq %rax, %rcx |
| |
| # 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. 2 4.5 0.5 0.0 imulq $5, %rcx, %rax |
| # CHECK-NEXT: 1. 2 5.5 1.5 0.0 lzcntl %ecx, %eax |
| # CHECK-NEXT: 2. 2 8.5 0.0 0.0 andq %rcx, %rax |
| # CHECK-NEXT: 3. 2 9.5 0.0 0.0 bsfq %rax, %rcx |
| # CHECK-NEXT: 2 7.0 0.5 0.0 <total> |
