llvm/test/CodeGen/AMDGPU/waitcnt-skip-meta.mir

   1 # RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass si-insert-waitcnts  %s -o - | FileCheck %s
   2
   3 # Ensure we insert waitcnts after any meta instructions at the start of
   4 # non-kernel functions. Without this, the inserted waitcnts can affect e.g. the
   5 # PC ranges covered by CFI and debug values.
   6
   7 ---
   8 # CHECK-LABEL: name: skip_implicit_def{{$}}
   9 # CHECK: IMPLICIT_DEF
  10 # CHECK: S_WAITCNT
  11 name: skip_implicit_def
  12 machineFunctionInfo:
  13 body: |
  14   bb.0:
  15     $sgpr0 = IMPLICIT_DEF
  16 ...
  17 ---
  18 # CHECK-LABEL: name: skip_kill{{$}}
  19 # CHECK: KILL
  20 # CHECK: S_WAITCNT
  21 name: skip_kill
  22 machineFunctionInfo:
  23 body: |
  24   bb.0:
  25     KILL $sgpr0
  26 ...
  27 ---
  28 # CHECK-LABEL: name: skip_cfi{{$}}
  29 # CHECK: CFI_INSTRUCTION
  30 # CHECK: S_WAITCNT
  31 name: skip_cfi
  32 machineFunctionInfo:
  33 body: |
  34   bb.0:
  35     CFI_INSTRUCTION undefined $sgpr0
  36 ...
  37 ---
  38 # CHECK-LABEL: name: skip_eh_label{{$}}
  39 # CHECK: EH_LABEL
  40 # CHECK: S_WAITCNT
  41 name: skip_eh_label
  42 machineFunctionInfo:
  43 body: |
  44   bb.0:
  45     EH_LABEL 0
  46 ...
  47 ---
  48 # CHECK-LABEL: name: skip_gc_label{{$}}
  49 # CHECK: GC_LABEL
  50 # CHECK: S_WAITCNT
  51 name: skip_gc_label
  52 machineFunctionInfo:
  53 body: |
  54   bb.0:
  55     GC_LABEL 0
  56 ...
  57 ---
  58 # CHECK-LABEL: name: skip_dbg_value{{$}}
  59 # CHECK: DBG_VALUE
  60 # CHECK: S_WAITCNT
  61 name: skip_dbg_value
  62 machineFunctionInfo:
  63 body: |
  64   bb.0:
  65     DBG_VALUE 0
  66 ...
  67 ---
  68 # CHECK-LABEL: name: skip_dbg_label{{$}}
  69 # CHECK: DBG_LABEL
  70 # CHECK: S_WAITCNT
  71 name: skip_dbg_label
  72 machineFunctionInfo:
  73 body: |
  74   bb.0:
  75     DBG_LABEL 0
  76 ...
  77 ---
  78 # CHECK-LABEL: name: skip_lifetime_start{{$}}
  79 # CHECK: LIFETIME_START
  80 # CHECK: S_WAITCNT
  81 name: skip_lifetime_start
  82 machineFunctionInfo:
  83 body: |
  84   bb.0:
  85     LIFETIME_START 0
  86 ...
  87 ---
  88 # CHECK-LABEL: name: skip_lifetime_end{{$}}
  89 # CHECK: LIFETIME_END
  90 # CHECK: S_WAITCNT
  91 name: skip_lifetime_end
  92 machineFunctionInfo:
  93 body: |
  94   bb.0:
  95     LIFETIME_END 0
  96 ...