1; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
2; XUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
3
4; FIXME: broken on VI because flat instructions need to be emitted
5; instead of addr64 equivalent of the _OFFSET variants.
6
7; Check that moving the pointer out of the resource descriptor to
8; vaddr works for atomics.
9
10declare i32 @llvm.r600.read.tidig.x() #1
11
12; GCN-LABEL: {{^}}atomic_max_i32:
13; GCN: buffer_atomic_smax v{{[0-9]+}}, v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:400 glc{{$}}
14define void @atomic_max_i32(i32 addrspace(1)* %out, i32 addrspace(1)* addrspace(1)* %in, i32 addrspace(1)* %x, i32 %y) #0 {
15  %tid = call i32 @llvm.r600.read.tidig.x()
16  %tid.gep = getelementptr i32 addrspace(1)*, i32 addrspace(1)* addrspace(1)* %in, i32 %tid
17  %ptr = load volatile i32 addrspace(1)*, i32 addrspace(1)* addrspace(1)* %tid.gep
18  %xor = xor i32 %tid, 1
19  %cmp = icmp ne i32 %xor, 0
20  br i1 %cmp, label %atomic, label %exit
21
22atomic:
23  %gep = getelementptr i32, i32 addrspace(1)* %ptr, i32 100
24  %ret = atomicrmw max i32 addrspace(1)* %gep, i32 %y seq_cst
25  store i32 %ret, i32 addrspace(1)* %out
26  br label %exit
27
28exit:
29  ret void
30}
31
32; GCN-LABEL: {{^}}atomic_max_i32_noret:
33; GCN: buffer_atomic_smax v{{[0-9]+}}, v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:400{{$}}
34define void @atomic_max_i32_noret(i32 addrspace(1)* %out, i32 addrspace(1)* addrspace(1)* %in, i32 addrspace(1)* %x, i32 %y) #0 {
35  %tid = call i32 @llvm.r600.read.tidig.x()
36  %tid.gep = getelementptr i32 addrspace(1)*, i32 addrspace(1)* addrspace(1)* %in, i32 %tid
37  %ptr = load volatile i32 addrspace(1)*, i32 addrspace(1)* addrspace(1)* %tid.gep
38  %xor = xor i32 %tid, 1
39  %cmp = icmp ne i32 %xor, 0
40  br i1 %cmp, label %atomic, label %exit
41
42atomic:
43  %gep = getelementptr i32, i32 addrspace(1)* %ptr, i32 100
44  %ret = atomicrmw max i32 addrspace(1)* %gep, i32 %y seq_cst
45  br label %exit
46
47exit:
48  ret void
49}
50
51attributes #0 = { nounwind }
52attributes #1 = { nounwind readnone }
53