77 lines · plain
1# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py2# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=bdver2 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s3 4# perf stat reports a throughput of 1.00 IPC for this code snippet.5 6lzcnt %ax, %bx ## partial register stall.7 8# CHECK: Iterations: 15009# CHECK-NEXT: Instructions: 150010# CHECK-NEXT: Total Cycles: 300311# CHECK-NEXT: Total uOps: 300012 13# CHECK: Dispatch Width: 414# CHECK-NEXT: uOps Per Cycle: 1.0015# CHECK-NEXT: IPC: 0.5016# CHECK-NEXT: Block RThroughput: 2.017 18# CHECK: Instruction Info:19# CHECK-NEXT: [1]: #uOps20# CHECK-NEXT: [2]: Latency21# CHECK-NEXT: [3]: RThroughput22# CHECK-NEXT: [4]: MayLoad23# CHECK-NEXT: [5]: MayStore24# CHECK-NEXT: [6]: HasSideEffects (U)25 26# CHECK: [1] [2] [3] [4] [5] [6] Instructions:27# CHECK-NEXT: 2 2 2.00 lzcntw %ax, %bx28 29# CHECK: Resources:30# CHECK-NEXT: [0.0] - PdAGLU0131# CHECK-NEXT: [0.1] - PdAGLU0132# CHECK-NEXT: [1] - PdBranch33# CHECK-NEXT: [2] - PdCount34# CHECK-NEXT: [3] - PdDiv35# CHECK-NEXT: [4] - PdEX036# CHECK-NEXT: [5] - PdEX137# CHECK-NEXT: [6] - PdFPCVT38# CHECK-NEXT: [7.0] - PdFPFMA39# CHECK-NEXT: [7.1] - PdFPFMA40# CHECK-NEXT: [8.0] - PdFPMAL41# CHECK-NEXT: [8.1] - PdFPMAL42# CHECK-NEXT: [9] - PdFPMMA43# CHECK-NEXT: [10] - PdFPSTO44# CHECK-NEXT: [11] - PdFPU045# CHECK-NEXT: [12] - PdFPU146# CHECK-NEXT: [13] - PdFPU247# CHECK-NEXT: [14] - PdFPU348# CHECK-NEXT: [15] - PdFPXBR49# CHECK-NEXT: [16.0] - PdLoad50# CHECK-NEXT: [16.1] - PdLoad51# CHECK-NEXT: [17] - PdMul52# CHECK-NEXT: [18] - PdStore53 54# CHECK: Resource pressure per iteration:55# 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]56# CHECK-NEXT: - - - - - 2.00 - - - - - - - - - - - - - - - - -57 58# CHECK: Resource pressure by instruction:59# 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:60# CHECK-NEXT: - - - - - 2.00 - - - - - - - - - - - - - - - - - lzcntw %ax, %bx61 62# CHECK: Timeline view:63# CHECK-NEXT: Index 01234567864 65# CHECK: [0,0] DeeER. . lzcntw %ax, %bx66# CHECK-NEXT: [1,0] D==eeER . lzcntw %ax, %bx67# CHECK-NEXT: [2,0] .D===eeER lzcntw %ax, %bx68 69# CHECK: Average Wait times (based on the timeline view):70# CHECK-NEXT: [0]: Executions71# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue72# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready73# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage74 75# CHECK: [0] [1] [2] [3]76# CHECK-NEXT: 0. 3 2.7 1.0 0.0 lzcntw %ax, %bx77