reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI,GFX678,HAS-ATOMICS %s
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9,HAS-ATOMICS %s
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX678,NO-ATOMICS %s
; RUN: llc -march=amdgcn -mcpu=hawaii -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX678,NO-ATOMICS %s

; GCN-LABEL: {{^}}lds_atomic_fadd_ret_f32:
; GFX678-DAG: s_mov_b32 m0
; GFX9-NOT: m0
; HAS-ATOMICS-DAG: v_mov_b32_e32 [[K:v[0-9]+]], 4.0
; HAS-ATOMICS: ds_add_rtn_f32 v0, v0, [[K]]

; NO-ATOMICS: ds_read_b32
; NO-ATOMICS: v_add_f32
; NO-ATOMICS: ds_cmpst_rtn_b32
; NO-ATOMICS: s_cbranch_execnz
define float @lds_atomic_fadd_ret_f32(float addrspace(3)* %ptr) nounwind {
  %result = atomicrmw fadd float addrspace(3)* %ptr, float 4.0 seq_cst
  ret float %result
}

; GCN-LABEL: {{^}}lds_atomic_fadd_noret_f32:
; GFX678-DAG: s_mov_b32 m0
; GFX9-NOT: m0
; HAS-ATOMICS-DAG: v_mov_b32_e32 [[K:v[0-9]+]], 4.0
; HAS-ATOMICS: ds_add_f32 v0, [[K]]
define void @lds_atomic_fadd_noret_f32(float addrspace(3)* %ptr) nounwind {
  %result = atomicrmw fadd float addrspace(3)* %ptr, float 4.0 seq_cst
  ret void
}

; GCN-LABEL: {{^}}lds_ds_fadd:
; VI-DAG: s_mov_b32 m0
; GFX9-NOT: m0
; HAS-ATOMICS-DAG: v_mov_b32_e32 [[V0:v[0-9]+]], 0x42280000
; HAS-ATOMICS: ds_add_rtn_f32 [[V2:v[0-9]+]], [[V1:v[0-9]+]], [[V0]] offset:32
; HAS-ATOMICS: ds_add_f32 [[V3:v[0-9]+]], [[V0]] offset:64
; HAS-ATOMICS: s_waitcnt vmcnt(0) lgkmcnt(0)
; HAS-ATOMICS: ds_add_rtn_f32 {{v[0-9]+}}, {{v[0-9]+}}, [[V2]]
define amdgpu_kernel void @lds_ds_fadd(float addrspace(1)* %out, float addrspace(3)* %ptrf, i32 %idx) {
  %idx.add = add nuw i32 %idx, 4
  %shl0 = shl i32 %idx.add, 3
  %shl1 = shl i32 %idx.add, 4
  %ptr0 = inttoptr i32 %shl0 to float addrspace(3)*
  %ptr1 = inttoptr i32 %shl1 to float addrspace(3)*
  %a1 = atomicrmw fadd float addrspace(3)* %ptr0, float 4.2e+1 seq_cst
  %a2 = atomicrmw fadd float addrspace(3)* %ptr1, float 4.2e+1 seq_cst
  %a3 = atomicrmw fadd float addrspace(3)* %ptrf, float %a1 seq_cst
  store float %a3, float addrspace(1)* %out
  ret void
}

; GCN-LABEL: {{^}}lds_ds_fadd_one_as:
; VI-DAG: s_mov_b32 m0
; GFX9-NOT: m0
; HAS-ATOMICS-DAG: v_mov_b32_e32 [[V0:v[0-9]+]], 0x42280000
; HAS-ATOMICS: ds_add_rtn_f32 [[V2:v[0-9]+]], [[V1:v[0-9]+]], [[V0]] offset:32
; HAS-ATOMICS: ds_add_f32 [[V3:v[0-9]+]], [[V0]] offset:64
; HAS-ATOMICS: s_waitcnt lgkmcnt(1)
; HAS-ATOMICS: ds_add_rtn_f32 {{v[0-9]+}}, {{v[0-9]+}}, [[V2]]
define amdgpu_kernel void @lds_ds_fadd_one_as(float addrspace(1)* %out, float addrspace(3)* %ptrf, i32 %idx) {
  %idx.add = add nuw i32 %idx, 4
  %shl0 = shl i32 %idx.add, 3
  %shl1 = shl i32 %idx.add, 4
  %ptr0 = inttoptr i32 %shl0 to float addrspace(3)*
  %ptr1 = inttoptr i32 %shl1 to float addrspace(3)*
  %a1 = atomicrmw fadd float addrspace(3)* %ptr0, float 4.2e+1 syncscope("one-as") seq_cst
  %a2 = atomicrmw fadd float addrspace(3)* %ptr1, float 4.2e+1 syncscope("one-as") seq_cst
  %a3 = atomicrmw fadd float addrspace(3)* %ptrf, float %a1 syncscope("one-as") seq_cst
  store float %a3, float addrspace(1)* %out
  ret void
}

; GCN-LABEL: {{^}}lds_atomic_fadd_ret_f64:
; GCN: ds_read_b64
; GCN: v_add_f64
; GCN: ds_cmpst_rtn_b64
; GCN: s_cbranch_execnz
define double @lds_atomic_fadd_ret_f64(double addrspace(3)* %ptr) nounwind {
  %result = atomicrmw fadd double addrspace(3)* %ptr, double 4.0 seq_cst
  ret double %result
}

; GCN-LABEL: {{^}}lds_atomic_fadd_noret_f64:
; GCN: ds_read_b64
; GCN: v_add_f64
; GCN: ds_cmpst_rtn_b64
; GCN: s_cbranch_execnz
define void @lds_atomic_fadd_noret_f64(double addrspace(3)* %ptr) nounwind {
  %result = atomicrmw fadd double addrspace(3)* %ptr, double 4.0 seq_cst
  ret void
}

; GCN-LABEL: {{^}}lds_atomic_fsub_ret_f32:
; GCN: ds_read_b32
; GCN: v_sub_f32
; GCN: ds_cmpst_rtn_b32
; GCN: s_cbranch_execnz
define float @lds_atomic_fsub_ret_f32(float addrspace(3)* %ptr, float %val) nounwind {
  %result = atomicrmw fsub float addrspace(3)* %ptr, float %val seq_cst
  ret float %result
}

; GCN-LABEL: {{^}}lds_atomic_fsub_noret_f32:
; GCN: ds_read_b32
; GCN: v_sub_f32
; GCN: ds_cmpst_rtn_b32
define void @lds_atomic_fsub_noret_f32(float addrspace(3)* %ptr, float %val) nounwind {
  %result = atomicrmw fsub float addrspace(3)* %ptr, float %val seq_cst
  ret void
}

; GCN-LABEL: {{^}}lds_atomic_fsub_ret_f64:
; GCN: ds_read_b64
; GCN: v_add_f64 v{{\[[0-9]+:[0-9]+\]}}, v{{\[[0-9]+:[0-9]+\]}}, -v{{\[[0-9]+:[0-9]+\]}}
; GCN: ds_cmpst_rtn_b64

define double @lds_atomic_fsub_ret_f64(double addrspace(3)* %ptr, double %val) nounwind {
  %result = atomicrmw fsub double addrspace(3)* %ptr, double %val seq_cst
  ret double %result
}

; GCN-LABEL: {{^}}lds_atomic_fsub_noret_f64:
; GCN: ds_read_b64
; GCN: v_add_f64 v{{\[[0-9]+:[0-9]+\]}}, v{{\[[0-9]+:[0-9]+\]}}, -v{{\[[0-9]+:[0-9]+\]}}
; GCN: ds_cmpst_rtn_b64
; GCN: s_cbranch_execnz
define void @lds_atomic_fsub_noret_f64(double addrspace(3)* %ptr, double %val) nounwind {
  %result = atomicrmw fsub double addrspace(3)* %ptr, double %val seq_cst
  ret void
}