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 10 declare i32 @llvm.amdgcn.workitem.id.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{{$}} 14 define 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.amdgcn.workitem.id.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 22 atomic: 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 28 exit: 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{{$}} 34 define 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.amdgcn.workitem.id.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 42 atomic: 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 47 exit: 48 ret void 49 } 50 51 attributes #0 = { nounwind } 52 attributes #1 = { nounwind readnone } 53
