llvm/test/tools/llvm-mca/X86/Znver2/partial-reg-update-6.s

   1 # NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
   2 # RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=znver2 -iterations=1500 -timeline -timeline-max-iterations=4 < %s | FileCheck %s
   3
   4 # Each lzcnt has a false dependency on %ecx; the first lzcnt has to wait on the
   5 # imul. However, the folded load can start immediately.
   6 # The last lzcnt has a false dependency on %cx. However, even in this case, the
   7 # folded load can start immediately.
   8
   9 imul %edx, %ecx
  10 lzcnt (%rsp), %cx
  11 lzcnt 2(%rsp), %cx
  12
  13 # CHECK:      Iterations:        1500
  14 # CHECK-NEXT: Instructions:      4500
  15 # CHECK-NEXT: Total Cycles:      9003
  16 # CHECK-NEXT: Total uOps:        7500
  17
  18 # CHECK:      Dispatch Width:    4
  19 # CHECK-NEXT: uOps Per Cycle:    0.83
  20 # CHECK-NEXT: IPC:               0.50
  21 # CHECK-NEXT: Block RThroughput: 1.3
  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      3     1.00                        imull   %edx, %ecx
  33 # CHECK-NEXT:  2      5     0.33    *                   lzcntw  (%rsp), %cx
  34 # CHECK-NEXT:  2      5     0.33    *                   lzcntw  2(%rsp), %cx
  35
  36 # CHECK:      Resources:
  37 # CHECK-NEXT: [0]   - Zn2AGU0
  38 # CHECK-NEXT: [1]   - Zn2AGU1
  39 # CHECK-NEXT: [2]   - Zn2AGU2
  40 # CHECK-NEXT: [3]   - Zn2ALU0
  41 # CHECK-NEXT: [4]   - Zn2ALU1
  42 # CHECK-NEXT: [5]   - Zn2ALU2
  43 # CHECK-NEXT: [6]   - Zn2ALU3
  44 # CHECK-NEXT: [7]   - Zn2Divider
  45 # CHECK-NEXT: [8]   - Zn2FPU0
  46 # CHECK-NEXT: [9]   - Zn2FPU1
  47 # CHECK-NEXT: [10]  - Zn2FPU2
  48 # CHECK-NEXT: [11]  - Zn2FPU3
  49 # CHECK-NEXT: [12]  - Zn2Multiplier
  50
  51 # CHECK:      Resource pressure per iteration:
  52 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]
  53 # CHECK-NEXT: 0.67   0.67   0.67   0.67   1.00   0.67   0.67    -      -      -      -      -     1.00
  54
  55 # CHECK:      Resource pressure by instruction:
  56 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   Instructions:
  57 # CHECK-NEXT:  -      -      -      -     1.00    -      -      -      -      -      -      -     1.00   imull  %edx, %ecx
  58 # CHECK-NEXT: 0.33   0.33   0.33   0.33    -     0.33   0.33    -      -      -      -      -      -     lzcntw (%rsp), %cx
  59 # CHECK-NEXT: 0.33   0.33   0.33   0.33    -     0.33   0.33    -      -      -      -      -      -     lzcntw 2(%rsp), %cx
  60
  61 # CHECK:      Timeline view:
  62 # CHECK-NEXT:                     0123456789
  63 # CHECK-NEXT: Index     0123456789          0123456
  64
  65 # CHECK:      [0,0]     DeeeER    .    .    .    ..   imull     %edx, %ecx
  66 # CHECK-NEXT: [0,1]     DeeeeeER  .    .    .    ..   lzcntw    (%rsp), %cx
  67 # CHECK-NEXT: [0,2]     .DeeeeeER .    .    .    ..   lzcntw    2(%rsp), %cx
  68 # CHECK-NEXT: [1,0]     .D=====eeeER   .    .    ..   imull     %edx, %ecx
  69 # CHECK-NEXT: [1,1]     . D====eeeeeER .    .    ..   lzcntw    (%rsp), %cx
  70 # CHECK-NEXT: [1,2]     . D=====eeeeeER.    .    ..   lzcntw    2(%rsp), %cx
  71 # CHECK-NEXT: [2,0]     .  D=========eeeER  .    ..   imull     %edx, %ecx
  72 # CHECK-NEXT: [2,1]     .  D=========eeeeeER.    ..   lzcntw    (%rsp), %cx
  73 # CHECK-NEXT: [2,2]     .   D=========eeeeeER    ..   lzcntw    2(%rsp), %cx
  74 # CHECK-NEXT: [3,0]     .   D==============eeeER ..   imull     %edx, %ecx
  75 # CHECK-NEXT: [3,1]     .    D=============eeeeeER.   lzcntw    (%rsp), %cx
  76 # CHECK-NEXT: [3,2]     .    D==============eeeeeER   lzcntw    2(%rsp), %cx
  77
  78 # CHECK:      Average Wait times (based on the timeline view):
  79 # CHECK-NEXT: [0]: Executions
  80 # CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
  81 # CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
  82 # CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
  83
  84 # CHECK:            [0]    [1]    [2]    [3]
  85 # CHECK-NEXT: 0.     4     8.0    0.3    0.0       imull        %edx, %ecx
  86 # CHECK-NEXT: 1.     4     7.5    0.0    0.0       lzcntw       (%rsp), %cx
  87 # CHECK-NEXT: 2.     4     8.0    0.0    0.0       lzcntw       2(%rsp), %cx
  88 # CHECK-NEXT:        4     7.8    0.1    0.0       <total>