test/tools/llvm-mca/X86/BdVer2/partial-reg-update-5.s

   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 1.00 IPC for this code snippet.
   5
   6 lzcnt %ax, %bx  ## partial register stall.
   7
   8 # CHECK:      Iterations:        1500
   9 # CHECK-NEXT: Instructions:      1500
  10 # CHECK-NEXT: Total Cycles:      3003
  11 # CHECK-NEXT: Total uOps:        3000
  12
  13 # CHECK:      Dispatch Width:    4
  14 # CHECK-NEXT: uOps Per Cycle:    1.00
  15 # CHECK-NEXT: IPC:               0.50
  16 # CHECK-NEXT: Block RThroughput: 2.0
  17
  18 # CHECK:      Instruction Info:
  19 # CHECK-NEXT: [1]: #uOps
  20 # CHECK-NEXT: [2]: Latency
  21 # CHECK-NEXT: [3]: RThroughput
  22 # CHECK-NEXT: [4]: MayLoad
  23 # CHECK-NEXT: [5]: MayStore
  24 # CHECK-NEXT: [6]: HasSideEffects (U)
  25
  26 # CHECK:      [1]    [2]    [3]    [4]    [5]    [6]    Instructions:
  27 # CHECK-NEXT:  2      2     2.00                        lzcntw  %ax, %bx
  28
  29 # CHECK:      Resources:
  30 # CHECK-NEXT: [0.0] - PdAGLU01
  31 # CHECK-NEXT: [0.1] - PdAGLU01
  32 # CHECK-NEXT: [1]   - PdBranch
  33 # CHECK-NEXT: [2]   - PdCount
  34 # CHECK-NEXT: [3]   - PdDiv
  35 # CHECK-NEXT: [4]   - PdEX0
  36 # CHECK-NEXT: [5]   - PdEX1
  37 # CHECK-NEXT: [6]   - PdFPCVT
  38 # CHECK-NEXT: [7.0] - PdFPFMA
  39 # CHECK-NEXT: [7.1] - PdFPFMA
  40 # CHECK-NEXT: [8.0] - PdFPMAL
  41 # CHECK-NEXT: [8.1] - PdFPMAL
  42 # CHECK-NEXT: [9]   - PdFPMMA
  43 # CHECK-NEXT: [10]  - PdFPSTO
  44 # CHECK-NEXT: [11]  - PdFPU0
  45 # CHECK-NEXT: [12]  - PdFPU1
  46 # CHECK-NEXT: [13]  - PdFPU2
  47 # CHECK-NEXT: [14]  - PdFPU3
  48 # CHECK-NEXT: [15]  - PdFPXBR
  49 # CHECK-NEXT: [16.0] - PdLoad
  50 # CHECK-NEXT: [16.1] - PdLoad
  51 # CHECK-NEXT: [17]  - PdMul
  52 # CHECK-NEXT: [18]  - PdStore
  53
  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, %bx
  61
  62 # CHECK:      Timeline view:
  63 # CHECK-NEXT: Index     012345678
  64
  65 # CHECK:      [0,0]     DeeER.  .   lzcntw      %ax, %bx
  66 # CHECK-NEXT: [1,0]     D==eeER .   lzcntw      %ax, %bx
  67 # CHECK-NEXT: [2,0]     .D===eeER   lzcntw      %ax, %bx
  68
  69 # CHECK:      Average Wait times (based on the timeline view):
  70 # CHECK-NEXT: [0]: Executions
  71 # CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
  72 # CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
  73 # CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
  74
  75 # CHECK:            [0]    [1]    [2]    [3]
  76 # CHECK-NEXT: 0.     3     2.7    1.0    0.0       lzcntw       %ax, %bx