test/tools/llvm-mca/X86/BtVer2/reg-move-elimination-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=btver2 -iterations=3 -timeline -register-file-stats < %s | FileCheck %s
   3
   4 xor %eax, %eax
   5 mov %eax, %ebx
   6 mov %ebx, %ecx
   7 mov %ecx, %edx
   8 mov %edx, %eax
   9
  10 # CHECK:      Iterations:        3
  11 # CHECK-NEXT: Instructions:      15
  12 # CHECK-NEXT: Total Cycles:      9
  13 # CHECK-NEXT: Total uOps:        15
  14
  15 # CHECK:      Dispatch Width:    2
  16 # CHECK-NEXT: uOps Per Cycle:    1.67
  17 # CHECK-NEXT: IPC:               1.67
  18 # CHECK-NEXT: Block RThroughput: 2.5
  19
  20 # CHECK:      Instruction Info:
  21 # CHECK-NEXT: [1]: #uOps
  22 # CHECK-NEXT: [2]: Latency
  23 # CHECK-NEXT: [3]: RThroughput
  24 # CHECK-NEXT: [4]: MayLoad
  25 # CHECK-NEXT: [5]: MayStore
  26 # CHECK-NEXT: [6]: HasSideEffects (U)
  27
  28 # CHECK:      [1]    [2]    [3]    [4]    [5]    [6]    Instructions:
  29 # CHECK-NEXT:  1      0     0.50                        xorl    %eax, %eax
  30 # CHECK-NEXT:  1      1     0.50                        movl    %eax, %ebx
  31 # CHECK-NEXT:  1      1     0.50                        movl    %ebx, %ecx
  32 # CHECK-NEXT:  1      1     0.50                        movl    %ecx, %edx
  33 # CHECK-NEXT:  1      1     0.50                        movl    %edx, %eax
  34
  35 # CHECK:      Register File statistics:
  36 # CHECK-NEXT: Total number of mappings created:    0
  37 # CHECK-NEXT: Max number of mappings used:         0
  38
  39 # CHECK:      *  Register File #1 -- JFpuPRF:
  40 # CHECK-NEXT:    Number of physical registers:     72
  41 # CHECK-NEXT:    Total number of mappings created: 0
  42 # CHECK-NEXT:    Max number of mappings used:      0
  43
  44 # CHECK:      *  Register File #2 -- JIntegerPRF:
  45 # CHECK-NEXT:    Number of physical registers:     64
  46 # CHECK-NEXT:    Total number of mappings created: 0
  47 # CHECK-NEXT:    Max number of mappings used:      0
  48 # CHECK-NEXT:    Number of optimizable moves:      12
  49 # CHECK-NEXT:    Number of moves eliminated:       12  (100.0%)
  50 # CHECK-NEXT:    Number of zero moves:             12  (100.0%)
  51 # CHECK-NEXT:    Max moves eliminated per cycle:   2
  52
  53 # CHECK:      Resources:
  54 # CHECK-NEXT: [0]   - JALU0
  55 # CHECK-NEXT: [1]   - JALU1
  56 # CHECK-NEXT: [2]   - JDiv
  57 # CHECK-NEXT: [3]   - JFPA
  58 # CHECK-NEXT: [4]   - JFPM
  59 # CHECK-NEXT: [5]   - JFPU0
  60 # CHECK-NEXT: [6]   - JFPU1
  61 # CHECK-NEXT: [7]   - JLAGU
  62 # CHECK-NEXT: [8]   - JMul
  63 # CHECK-NEXT: [9]   - JSAGU
  64 # CHECK-NEXT: [10]  - JSTC
  65 # CHECK-NEXT: [11]  - JVALU0
  66 # CHECK-NEXT: [12]  - JVALU1
  67 # CHECK-NEXT: [13]  - JVIMUL
  68
  69 # CHECK:      Resource pressure per iteration:
  70 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]
  71 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -
  72
  73 # CHECK:      Resource pressure by instruction:
  74 # CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]   Instructions:
  75 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -     xorl    %eax, %eax
  76 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -     movl    %eax, %ebx
  77 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -     movl    %ebx, %ecx
  78 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -     movl    %ecx, %edx
  79 # CHECK-NEXT:  -      -      -      -      -      -      -      -      -      -      -      -      -      -     movl    %edx, %eax
  80
  81 # CHECK:      Timeline view:
  82 # CHECK-NEXT: Index     012345678
  83
  84 # CHECK:      [0,0]     DR   .  .   xorl        %eax, %eax
  85 # CHECK-NEXT: [0,1]     DR   .  .   movl        %eax, %ebx
  86 # CHECK-NEXT: [0,2]     .DR  .  .   movl        %ebx, %ecx
  87 # CHECK-NEXT: [0,3]     .DR  .  .   movl        %ecx, %edx
  88 # CHECK-NEXT: [0,4]     . DR .  .   movl        %edx, %eax
  89 # CHECK-NEXT: [1,0]     . DR .  .   xorl        %eax, %eax
  90 # CHECK-NEXT: [1,1]     .  DR.  .   movl        %eax, %ebx
  91 # CHECK-NEXT: [1,2]     .  DR.  .   movl        %ebx, %ecx
  92 # CHECK-NEXT: [1,3]     .   DR  .   movl        %ecx, %edx
  93 # CHECK-NEXT: [1,4]     .   DR  .   movl        %edx, %eax
  94 # CHECK-NEXT: [2,0]     .    DR .   xorl        %eax, %eax
  95 # CHECK-NEXT: [2,1]     .    DR .   movl        %eax, %ebx
  96 # CHECK-NEXT: [2,2]     .    .DR.   movl        %ebx, %ecx
  97 # CHECK-NEXT: [2,3]     .    .DR.   movl        %ecx, %edx
  98 # CHECK-NEXT: [2,4]     .    . DR   movl        %edx, %eax
  99
 100 # CHECK:      Average Wait times (based on the timeline view):
 101 # CHECK-NEXT: [0]: Executions
 102 # CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
 103 # CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
 104 # CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
 105
 106 # CHECK:            [0]    [1]    [2]    [3]
 107 # CHECK-NEXT: 0.     3     0.0    0.0    0.0       xorl %eax, %eax
 108 # CHECK-NEXT: 1.     3     0.0    0.0    0.0       movl %eax, %ebx
 109 # CHECK-NEXT: 2.     3     0.0    0.0    0.0       movl %ebx, %ecx
 110 # CHECK-NEXT: 3.     3     0.0    0.0    0.0       movl %ecx, %edx
 111 # CHECK-NEXT: 4.     3     0.0    0.0    0.0       movl %edx, %eax