test/tools/llvm-mca/X86/Barcelona/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=x86-64 -iterations=1500 -timeline -timeline-max-iterations=3 < %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:      4510
  16 # CHECK-NEXT: Total uOps:        7500
  17
  18 # CHECK:      Dispatch Width:    4
  19 # CHECK-NEXT: uOps Per Cycle:    1.66
  20 # CHECK-NEXT: IPC:               1.00
  21 # CHECK-NEXT: Block RThroughput: 3.0
  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      8     1.00    *                   lzcntw  (%rsp), %cx
  34 # CHECK-NEXT:  2      8     1.00    *                   lzcntw  2(%rsp), %cx
  35
  36 # CHECK:      Resources:
  37 # CHECK-NEXT: [0]   - SBDivider
  38 # CHECK-NEXT: [1]   - SBFPDivider
  39 # CHECK-NEXT: [2]   - SBPort0
  40 # CHECK-NEXT: [3]   - SBPort1
  41 # CHECK-NEXT: [4]   - SBPort4
  42 # CHECK-NEXT: [5]   - SBPort5
  43 # CHECK-NEXT: [6.0] - SBPort23
  44 # CHECK-NEXT: [6.1] - SBPort23
  45
  46 # CHECK:      Resource pressure per iteration:
  47 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6.0]  [6.1]
  48 # CHECK-NEXT:  -      -      -     3.00    -      -     1.00   1.00
  49
  50 # CHECK:      Resource pressure by instruction:
  51 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6.0]  [6.1]  Instructions:
  52 # CHECK-NEXT:  -      -      -     1.00    -      -      -      -     imull     %edx, %ecx
  53 # CHECK-NEXT:  -      -      -     1.00    -      -      -     1.00   lzcntw    (%rsp), %cx
  54 # CHECK-NEXT:  -      -      -     1.00    -      -     1.00    -     lzcntw    2(%rsp), %cx
  55
  56 # CHECK:      Timeline view:
  57 # CHECK-NEXT:                     012345678
  58 # CHECK-NEXT: Index     0123456789
  59
  60 # CHECK:      [0,0]     DeeeER    .    .  .   imull     %edx, %ecx
  61 # CHECK-NEXT: [0,1]     D=eeeeeeeeER   .  .   lzcntw    (%rsp), %cx
  62 # CHECK-NEXT: [0,2]     .D=eeeeeeeeER  .  .   lzcntw    2(%rsp), %cx
  63 # CHECK-NEXT: [1,0]     .D=========eeeER  .   imull     %edx, %ecx
  64 # CHECK-NEXT: [1,1]     . D=eeeeeeeeE--R  .   lzcntw    (%rsp), %cx
  65 # CHECK-NEXT: [1,2]     . D==eeeeeeeeE-R  .   lzcntw    2(%rsp), %cx
  66 # CHECK-NEXT: [2,0]     .  D==========eeeER   imull     %edx, %ecx
  67 # CHECK-NEXT: [2,1]     .  D==eeeeeeeeE---R   lzcntw    (%rsp), %cx
  68 # CHECK-NEXT: [2,2]     .   D==eeeeeeeeE--R   lzcntw    2(%rsp), %cx
  69
  70 # CHECK:      Average Wait times (based on the timeline view):
  71 # CHECK-NEXT: [0]: Executions
  72 # CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
  73 # CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
  74 # CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
  75
  76 # CHECK:            [0]    [1]    [2]    [3]
  77 # CHECK-NEXT: 0.     3     7.3    0.3    0.0       imull        %edx, %ecx
  78 # CHECK-NEXT: 1.     3     2.3    2.3    1.7       lzcntw       (%rsp), %cx
  79 # CHECK-NEXT: 2.     3     2.7    2.7    1.0       lzcntw       2(%rsp), %cx