test/tools/llvm-mca/X86/Barcelona/partial-reg-update-4.s

   1 # NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
   2 # RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -iterations=1500 -timeline -timeline-max-iterations=3 < %s | FileCheck %s
   3
   4 # The lzcnt cannot execute in parallel with the imul because there is a false
   5 # dependency on %bx.
   6
   7 imul %ax, %bx
   8 lzcnt %ax, %bx
   9 add %cx, %bx
  10
  11 # CHECK:      Iterations:        1500
  12 # CHECK-NEXT: Instructions:      4500
  13 # CHECK-NEXT: Total Cycles:      3005
  14 # CHECK-NEXT: Total uOps:        4500
  15
  16 # CHECK:      Dispatch Width:    4
  17 # CHECK-NEXT: uOps Per Cycle:    1.50
  18 # CHECK-NEXT: IPC:               1.50
  19 # CHECK-NEXT: Block RThroughput: 2.0
  20
  21 # CHECK:      Instruction Info:
  22 # CHECK-NEXT: [1]: #uOps
  23 # CHECK-NEXT: [2]: Latency
  24 # CHECK-NEXT: [3]: RThroughput
  25 # CHECK-NEXT: [4]: MayLoad
  26 # CHECK-NEXT: [5]: MayStore
  27 # CHECK-NEXT: [6]: HasSideEffects (U)
  28
  29 # CHECK:      [1]    [2]    [3]    [4]    [5]    [6]    Instructions:
  30 # CHECK-NEXT:  1      3     1.00                        imulw   %ax, %bx
  31 # CHECK-NEXT:  1      3     1.00                        lzcntw  %ax, %bx
  32 # CHECK-NEXT:  1      1     0.33                        addw    %cx, %bx
  33
  34 # CHECK:      Resources:
  35 # CHECK-NEXT: [0]   - SBDivider
  36 # CHECK-NEXT: [1]   - SBFPDivider
  37 # CHECK-NEXT: [2]   - SBPort0
  38 # CHECK-NEXT: [3]   - SBPort1
  39 # CHECK-NEXT: [4]   - SBPort4
  40 # CHECK-NEXT: [5]   - SBPort5
  41 # CHECK-NEXT: [6.0] - SBPort23
  42 # CHECK-NEXT: [6.1] - SBPort23
  43
  44 # CHECK:      Resource pressure per iteration:
  45 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6.0]  [6.1]
  46 # CHECK-NEXT:  -      -     0.50   2.00    -     0.50    -      -
  47
  48 # CHECK:      Resource pressure by instruction:
  49 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6.0]  [6.1]  Instructions:
  50 # CHECK-NEXT:  -      -      -     1.00    -      -      -      -     imulw     %ax, %bx
  51 # CHECK-NEXT:  -      -      -     1.00    -      -      -      -     lzcntw    %ax, %bx
  52 # CHECK-NEXT:  -      -     0.50    -      -     0.50    -      -     addw      %cx, %bx
  53
  54 # CHECK:      Timeline view:
  55 # CHECK-NEXT:                     01
  56 # CHECK-NEXT: Index     0123456789
  57
  58 # CHECK:      [0,0]     DeeeER    ..   imulw    %ax, %bx
  59 # CHECK-NEXT: [0,1]     D=eeeER   ..   lzcntw   %ax, %bx
  60 # CHECK-NEXT: [0,2]     D====eER  ..   addw     %cx, %bx
  61 # CHECK-NEXT: [1,0]     D=====eeeER.   imulw    %ax, %bx
  62 # CHECK-NEXT: [1,1]     .D=eeeE---R.   lzcntw   %ax, %bx
  63 # CHECK-NEXT: [1,2]     .D====eE--R.   addw     %cx, %bx
  64 # CHECK-NEXT: [2,0]     .D=====eeeER   imulw    %ax, %bx
  65 # CHECK-NEXT: [2,1]     .D==eeeE---R   lzcntw   %ax, %bx
  66 # CHECK-NEXT: [2,2]     . D====eE--R   addw     %cx, %bx
  67
  68 # CHECK:      Average Wait times (based on the timeline view):
  69 # CHECK-NEXT: [0]: Executions
  70 # CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
  71 # CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
  72 # CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
  73
  74 # CHECK:            [0]    [1]    [2]    [3]
  75 # CHECK-NEXT: 0.     3     4.3    0.3    0.0       imulw        %ax, %bx
  76 # CHECK-NEXT: 1.     3     2.3    2.3    2.0       lzcntw       %ax, %bx
  77 # CHECK-NEXT: 2.     3     5.0    0.0    1.3       addw %cx, %bx
  78 # CHECK-NEXT:        3     3.9    0.9    1.1       <total>