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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 0.60 IPC for this code snippet.5 6# The lzcnt cannot execute in parallel with the imul because there is a false7# dependency on %bx.8 9imul %ax, %bx10lzcnt %ax, %bx11add %cx, %bx12 13# CHECK: Iterations: 150014# CHECK-NEXT: Instructions: 450015# CHECK-NEXT: Total Cycles: 975316# CHECK-NEXT: Total uOps: 600017 18# CHECK: Dispatch Width: 419# CHECK-NEXT: uOps Per Cycle: 0.6220# CHECK-NEXT: IPC: 0.4621# CHECK-NEXT: Block RThroughput: 2.022 23# CHECK: Instruction Info:24# CHECK-NEXT: [1]: #uOps25# CHECK-NEXT: [2]: Latency26# CHECK-NEXT: [3]: RThroughput27# CHECK-NEXT: [4]: MayLoad28# CHECK-NEXT: [5]: MayStore29# CHECK-NEXT: [6]: HasSideEffects (U)30 31# CHECK: [1] [2] [3] [4] [5] [6] Instructions:32# CHECK-NEXT: 1 4 2.00 imulw %ax, %bx33# CHECK-NEXT: 2 2 2.00 lzcntw %ax, %bx34# CHECK-NEXT: 1 1 1.00 addw %cx, %bx35 36# CHECK: Resources:37# CHECK-NEXT: [0.0] - PdAGLU0138# CHECK-NEXT: [0.1] - PdAGLU0139# CHECK-NEXT: [1] - PdBranch40# CHECK-NEXT: [2] - PdCount41# CHECK-NEXT: [3] - PdDiv42# CHECK-NEXT: [4] - PdEX043# CHECK-NEXT: [5] - PdEX144# CHECK-NEXT: [6] - PdFPCVT45# CHECK-NEXT: [7.0] - PdFPFMA46# CHECK-NEXT: [7.1] - PdFPFMA47# CHECK-NEXT: [8.0] - PdFPMAL48# CHECK-NEXT: [8.1] - PdFPMAL49# CHECK-NEXT: [9] - PdFPMMA50# CHECK-NEXT: [10] - PdFPSTO51# CHECK-NEXT: [11] - PdFPU052# CHECK-NEXT: [12] - PdFPU153# CHECK-NEXT: [13] - PdFPU254# CHECK-NEXT: [14] - PdFPU355# CHECK-NEXT: [15] - PdFPXBR56# CHECK-NEXT: [16.0] - PdLoad57# CHECK-NEXT: [16.1] - PdLoad58# CHECK-NEXT: [17] - PdMul59# CHECK-NEXT: [18] - PdStore60 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, %bx68# CHECK-NEXT: - - - - - 2.00 - - - - - - - - - - - - - - - - - lzcntw %ax, %bx69# CHECK-NEXT: - - - - - 1.00 1.00 - - - - - - - - - - - - - - - - addw %cx, %bx70 71# CHECK: Timeline view:72# CHECK-NEXT: 012345678973# CHECK-NEXT: Index 0123456789 0174 75# CHECK: [0,0] DeeeeER . . .. imulw %ax, %bx76# CHECK-NEXT: [0,1] D===eeER . . .. lzcntw %ax, %bx77# CHECK-NEXT: [0,2] D=====eER . . .. addw %cx, %bx78# CHECK-NEXT: [1,0] .D======eeeeER . .. imulw %ax, %bx79# CHECK-NEXT: [1,1] .D=========eeER. .. lzcntw %ax, %bx80# CHECK-NEXT: [1,2] .D===========eER .. addw %cx, %bx81# CHECK-NEXT: [2,0] . D===========eeeeER.. imulw %ax, %bx82# CHECK-NEXT: [2,1] . D==============eeER. lzcntw %ax, %bx83# CHECK-NEXT: [2,2] . D================eER addw %cx, %bx84 85# CHECK: Average Wait times (based on the timeline view):86# CHECK-NEXT: [0]: Executions87# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue88# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready89# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage90 91# CHECK: [0] [1] [2] [3]92# CHECK-NEXT: 0. 3 6.7 0.7 0.0 imulw %ax, %bx93# CHECK-NEXT: 1. 3 9.7 0.0 0.0 lzcntw %ax, %bx94# CHECK-NEXT: 2. 3 11.7 0.0 0.0 addw %cx, %bx95# CHECK-NEXT: 3 9.3 0.2 0.0 <total>96