1# RUN: llc -march=amdgcn -run-pass=si-memory-legalizer  %s -o - | FileCheck %s
2
3--- |
4  declare i32 @llvm.amdgcn.workitem.id.x() #0
5
6  define amdgpu_kernel void @atomic_max_i32_noret(
7      i32 addrspace(1)* %out,
8      i32 addrspace(1)* addrspace(1)* %in,
9      i32 addrspace(1)* %x,
10      i32 %y) #1 {
11    %tid = call i32 @llvm.amdgcn.workitem.id.x()
12    %idxprom = sext i32 %tid to i64
13    %tid.gep = getelementptr i32 addrspace(1)*, i32 addrspace(1)* addrspace(1)* %in, i64 %idxprom
14    %ptr = load volatile i32 addrspace(1)*, i32 addrspace(1)* addrspace(1)* %tid.gep
15    %xor = xor i32 %tid, 1
16    %cmp = icmp ne i32 %xor, 0
17    %1 = call { i1, i64 } @llvm.amdgcn.if(i1 %cmp)
18    %2 = extractvalue { i1, i64 } %1, 0
19    %3 = extractvalue { i1, i64 } %1, 1
20    br i1 %2, label %atomic, label %exit
21
22  atomic:                                           ; preds = %0
23    %gep = getelementptr i32, i32 addrspace(1)* %ptr, i32 100
24    %ret = atomicrmw max i32 addrspace(1)* %gep, i32 %y seq_cst
25    br label %exit
26
27  exit:                                             ; preds = %atomic, %0
28    call void @llvm.amdgcn.end.cf(i64 %3)
29    ret void
30  }
31
32  declare { i1, i64 } @llvm.amdgcn.if(i1)
33
34  declare void @llvm.amdgcn.end.cf(i64)
35
36  attributes #0 = { nounwind readnone }
37  attributes #1 = { nounwind "target-cpu"="gfx803" }
38
39...
40---
41
42# CHECK-LABEL: name: atomic_max_i32_noret
43
44# CHECK-LABEL: bb.1.atomic:
45# CHECK:       BUFFER_ATOMIC_SMAX_ADDR64
46# CHECK-NEXT:  S_WAITCNT 3952
47# CHECK-NEXT:  BUFFER_WBINVL1_VOL
48
49name:            atomic_max_i32_noret
50alignment:       1
51exposesReturnsTwice: false
52legalized:       false
53regBankSelected: false
54selected:        false
55tracksRegLiveness: true
56liveins:
57  - { reg: '$sgpr0_sgpr1' }
58  - { reg: '$vgpr0' }
59frameInfo:
60  isFrameAddressTaken: false
61  isReturnAddressTaken: false
62  hasStackMap:     false
63  hasPatchPoint:   false
64  stackSize:       0
65  offsetAdjustment: 0
66  maxAlignment:    0
67  adjustsStack:    false
68  hasCalls:        false
69  maxCallFrameSize: 0
70  hasOpaqueSPAdjustment: false
71  hasVAStart:      false
72  hasMustTailInVarArgFunc: false
73body:             |
74  bb.0 (%ir-block.0):
75    successors: %bb.1.atomic(0x40000000), %bb.2.exit(0x40000000)
76    liveins: $vgpr0, $sgpr0_sgpr1
77
78    $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM $sgpr0_sgpr1, 11, 0, 0 :: (non-temporal dereferenceable invariant load 8 from `i64 addrspace(4)* undef`)
79    $vgpr1 = V_ASHRREV_I32_e32 31, $vgpr0, implicit $exec
80    $vgpr1_vgpr2 = V_LSHL_B64 $vgpr0_vgpr1, 3, implicit $exec
81    $sgpr7 = S_MOV_B32 61440
82    $sgpr6 = S_MOV_B32 0
83    S_WAITCNT 127
84    $vgpr1_vgpr2 = BUFFER_LOAD_DWORDX2_ADDR64 killed $vgpr1_vgpr2, $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (volatile load 8 from %ir.tid.gep)
85    $vgpr0 = V_XOR_B32_e32 1, killed $vgpr0, implicit $exec
86    V_CMP_NE_U32_e32 0, killed $vgpr0, implicit-def $vcc, implicit $exec
87    $sgpr2_sgpr3 = S_AND_SAVEEXEC_B64 killed $vcc, implicit-def $exec, implicit-def $scc, implicit $exec
88    $sgpr2_sgpr3 = S_XOR_B64 $exec, killed $sgpr2_sgpr3, implicit-def dead $scc
89    SI_MASK_BRANCH %bb.2.exit, implicit $exec
90
91  bb.1.atomic:
92    successors: %bb.2.exit(0x80000000)
93    liveins: $sgpr4_sgpr5_sgpr6_sgpr7:0x0000000C, $sgpr0_sgpr1, $sgpr2_sgpr3, $vgpr1_vgpr2_vgpr3_vgpr4:0x00000003
94
95    $sgpr0 = S_LOAD_DWORD_IMM killed $sgpr0_sgpr1, 15, 0, 0 :: (non-temporal dereferenceable invariant load 4 from `i32 addrspace(4)* undef`)
96    dead $vgpr0 = V_MOV_B32_e32 -1, implicit $exec
97    dead $vgpr0 = V_MOV_B32_e32 61440, implicit $exec
98    $sgpr4_sgpr5 = S_MOV_B64 0
99    S_WAITCNT 127
100    $vgpr0 = V_MOV_B32_e32 killed $sgpr0, implicit $exec, implicit $exec
101    S_WAITCNT 3952
102    BUFFER_ATOMIC_SMAX_ADDR64 killed $vgpr0, killed $vgpr1_vgpr2, killed $sgpr4_sgpr5_sgpr6_sgpr7, 0, 400, 0, implicit $exec :: (volatile load syncscope("one-as") seq_cst 4 from %ir.gep)
103
104  bb.2.exit:
105    liveins: $sgpr2_sgpr3
106
107    $exec = S_OR_B64 $exec, killed $sgpr2_sgpr3, implicit-def $scc
108    S_ENDPGM 0
109
110...
111
112