test/tools/llvm-mca/X86/BtVer2/reg-move-elimination-1.s

   1 # NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
   2 # RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=3 -timeline -register-file-stats < %s | FileCheck %s
   3
   4 # The register move from XMM0 to XMM1 can be eliminated at register renaming
   5 # stage. So, it should not consume pipeline resources.
   6
   7 vxorps %xmm0, %xmm0, %xmm0
   8 vmovaps %xmm0, %xmm1
   9 vaddps %xmm1, %xmm1, %xmm2
  10
  11 # CHECK:      Iterations:        3
  12 # CHECK-NEXT: Instructions:      9
  13 # CHECK-NEXT: Total Cycles:      10
  14 # CHECK-NEXT: Total uOps:        9
  15
  16 # CHECK:      Dispatch Width:    2
  17 # CHECK-NEXT: uOps Per Cycle:    0.90
  18 # CHECK-NEXT: IPC:               0.90
  19 # CHECK-NEXT: Block RThroughput: 1.5
  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      0     0.50                        vxorps  %xmm0, %xmm0, %xmm0
  31 # CHECK-NEXT:  1      1     0.50                        vmovaps %xmm0, %xmm1
  32 # CHECK-NEXT:  1      3     1.00                        vaddps  %xmm1, %xmm1, %xmm2
  33
  34 # CHECK:      Register File statistics:
  35 # CHECK-NEXT: Total number of mappings created:    3
  36 # CHECK-NEXT: Max number of mappings used:         3
  37
  38 # CHECK:      *  Register File #1 -- JFpuPRF:
  39 # CHECK-NEXT:    Number of physical registers:     72
  40 # CHECK-NEXT:    Total number of mappings created: 3
  41 # CHECK-NEXT:    Max number of mappings used:      3
  42 # CHECK-NEXT:    Number of optimizable moves:      3
  43 # CHECK-NEXT:    Number of moves eliminated:       3  (100.0%)
  44 # CHECK-NEXT:    Number of zero moves:             3  (100.0%)
  45 # CHECK-NEXT:    Max moves eliminated per cycle:   1
  46
  47 # CHECK:      *  Register File #2 -- JIntegerPRF:
  48 # CHECK-NEXT:    Number of physical registers:     64
  49 # CHECK-NEXT:    Total number of mappings created: 0
  50 # CHECK-NEXT:    Max number of mappings used:      0
  51
  52 # CHECK:      Resources:
  53 # CHECK-NEXT: [0]   - JALU0
  54 # CHECK-NEXT: [1]   - JALU1
  55 # CHECK-NEXT: [2]   - JDiv
  56 # CHECK-NEXT: [3]   - JFPA
  57 # CHECK-NEXT: [4]   - JFPM
  58 # CHECK-NEXT: [5]   - JFPU0
  59 # CHECK-NEXT: [6]   - JFPU1
  60 # CHECK-NEXT: [7]   - JLAGU
  61 # CHECK-NEXT: [8]   - JMul
  62 # CHECK-NEXT: [9]   - JSAGU
  63 # CHECK-NEXT: [10]  - JSTC
  64 # CHECK-NEXT: [11]  - JVALU0
  65 # CHECK-NEXT: [12]  - JVALU1
  66 # CHECK-NEXT: [13]  - JVIMUL
  67
  68 # CHECK:      Resource pressure per iteration:
  69 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]
  70 # CHECK-NEXT:  -      -      -     1.00    -     1.00    -      -      -      -      -      -      -      -
  71
  72 # CHECK:      Resource pressure by instruction:
  73 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]   Instructions:
  74 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -     vxorps  %xmm0, %xmm0, %xmm0
  75 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -     vmovaps %xmm0, %xmm1
  76 # CHECK-NEXT:  -      -      -     1.00    -     1.00    -      -      -      -      -      -      -      -     vaddps  %xmm1, %xmm1, %xmm2
  77
  78 # CHECK:      Timeline view:
  79 # CHECK-NEXT: Index     0123456789
  80
  81 # CHECK:      [0,0]     DR   .   .   vxorps     %xmm0, %xmm0, %xmm0
  82 # CHECK-NEXT: [0,1]     DR   .   .   vmovaps    %xmm0, %xmm1
  83 # CHECK-NEXT: [0,2]     .DeeeER  .   vaddps     %xmm1, %xmm1, %xmm2
  84 # CHECK-NEXT: [1,0]     .D----R  .   vxorps     %xmm0, %xmm0, %xmm0
  85 # CHECK-NEXT: [1,1]     . D----R .   vmovaps    %xmm0, %xmm1
  86 # CHECK-NEXT: [1,2]     . DeeeER .   vaddps     %xmm1, %xmm1, %xmm2
  87 # CHECK-NEXT: [2,0]     .  D----R.   vxorps     %xmm0, %xmm0, %xmm0
  88 # CHECK-NEXT: [2,1]     .  D----R.   vmovaps    %xmm0, %xmm1
  89 # CHECK-NEXT: [2,2]     .   DeeeER   vaddps     %xmm1, %xmm1, %xmm2
  90
  91 # CHECK:      Average Wait times (based on the timeline view):
  92 # CHECK-NEXT: [0]: Executions
  93 # CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
  94 # CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
  95 # CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
  96
  97 # CHECK:            [0]    [1]    [2]    [3]
  98 # CHECK-NEXT: 0.     3     0.0    0.0    2.7       vxorps       %xmm0, %xmm0, %xmm0
  99 # CHECK-NEXT: 1.     3     0.0    0.0    2.7       vmovaps      %xmm0, %xmm1
 100 # CHECK-NEXT: 2.     3     1.0    1.0    0.0       vaddps       %xmm1, %xmm1, %xmm2
 101 # CHECK-NEXT:        3     0.3    0.3    1.8       <total>