1# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py 2# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=bdver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s 3 4# perf stat reports a throughput of 0.60 IPC for this code snippet. 5 6# The lzcnt cannot execute in parallel with the imul because there is a false 7# dependency on %bx. 8 9imul %ax, %bx 10lzcnt %ax, %bx 11add %cx, %bx 12 13# CHECK: Iterations: 1500 14# CHECK-NEXT: Instructions: 4500 15# CHECK-NEXT: Total Cycles: 9753 16# CHECK-NEXT: Total uOps: 6000 17 18# CHECK: Dispatch Width: 4 19# CHECK-NEXT: uOps Per Cycle: 0.62 20# CHECK-NEXT: IPC: 0.46 21# CHECK-NEXT: Block RThroughput: 2.0 22 23# CHECK: Instruction Info: 24# CHECK-NEXT: [1]: #uOps 25# CHECK-NEXT: [2]: Latency 26# CHECK-NEXT: [3]: RThroughput 27# CHECK-NEXT: [4]: MayLoad 28# CHECK-NEXT: [5]: MayStore 29# CHECK-NEXT: [6]: HasSideEffects (U) 30 31# CHECK: [1] [2] [3] [4] [5] [6] Instructions: 32# CHECK-NEXT: 1 4 2.00 imulw %ax, %bx 33# CHECK-NEXT: 2 2 2.00 lzcntw %ax, %bx 34# CHECK-NEXT: 1 1 1.00 addw %cx, %bx 35 36# CHECK: Resources: 37# CHECK-NEXT: [0.0] - PdAGLU01 38# CHECK-NEXT: [0.1] - PdAGLU01 39# CHECK-NEXT: [1] - PdBranch 40# CHECK-NEXT: [2] - PdCount 41# CHECK-NEXT: [3] - PdDiv 42# CHECK-NEXT: [4] - PdEX0 43# CHECK-NEXT: [5] - PdEX1 44# CHECK-NEXT: [6] - PdFPCVT 45# CHECK-NEXT: [7.0] - PdFPFMA 46# CHECK-NEXT: [7.1] - PdFPFMA 47# CHECK-NEXT: [8.0] - PdFPMAL 48# CHECK-NEXT: [8.1] - PdFPMAL 49# CHECK-NEXT: [9] - PdFPMMA 50# CHECK-NEXT: [10] - PdFPSTO 51# CHECK-NEXT: [11] - PdFPU0 52# CHECK-NEXT: [12] - PdFPU1 53# CHECK-NEXT: [13] - PdFPU2 54# CHECK-NEXT: [14] - PdFPU3 55# CHECK-NEXT: [15] - PdFPXBR 56# CHECK-NEXT: [16.0] - PdLoad 57# CHECK-NEXT: [16.1] - PdLoad 58# CHECK-NEXT: [17] - PdMul 59# CHECK-NEXT: [18] - PdStore 60 61# CHECK: Resource pressure per iteration: 62# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18] 63# CHECK-NEXT: - - - - - 3.00 2.00 - - - - - - - - - - - - - - 2.00 - 64 65# CHECK: Resource pressure by instruction: 66# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18] Instructions: 67# CHECK-NEXT: - - - - - - 1.00 - - - - - - - - - - - - - - 2.00 - imulw %ax, %bx 68# CHECK-NEXT: - - - - - 2.00 - - - - - - - - - - - - - - - - - lzcntw %ax, %bx 69# CHECK-NEXT: - - - - - 1.00 1.00 - - - - - - - - - - - - - - - - addw %cx, %bx 70 71# CHECK: Timeline view: 72# CHECK-NEXT: 0123456789 73# CHECK-NEXT: Index 0123456789 01 74 75# CHECK: [0,0] DeeeeER . . .. imulw %ax, %bx 76# CHECK-NEXT: [0,1] D===eeER . . .. lzcntw %ax, %bx 77# CHECK-NEXT: [0,2] D=====eER . . .. addw %cx, %bx 78# CHECK-NEXT: [1,0] .D======eeeeER . .. imulw %ax, %bx 79# CHECK-NEXT: [1,1] .D=========eeER. .. lzcntw %ax, %bx 80# CHECK-NEXT: [1,2] .D===========eER .. addw %cx, %bx 81# CHECK-NEXT: [2,0] . D===========eeeeER.. imulw %ax, %bx 82# CHECK-NEXT: [2,1] . D==============eeER. lzcntw %ax, %bx 83# CHECK-NEXT: [2,2] . D================eER addw %cx, %bx 84 85# CHECK: Average Wait times (based on the timeline view): 86# CHECK-NEXT: [0]: Executions 87# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue 88# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready 89# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage 90 91# CHECK: [0] [1] [2] [3] 92# CHECK-NEXT: 0. 3 6.7 0.7 0.0 imulw %ax, %bx 93# CHECK-NEXT: 1. 3 9.7 0.0 0.0 lzcntw %ax, %bx 94# CHECK-NEXT: 2. 3 11.7 0.0 0.0 addw %cx, %bx 95# CHECK-NEXT: 3 9.3 0.2 0.0 <total> 96