1 ; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
3 @local_memory.local_mem = internal unnamed_addr addrspace(3) global [128 x i32] undef, align 4
5 ; Check that the LDS size emitted correctly
9 ; FUNC-LABEL: {{^}}local_memory:
13 ; GROUP_BARRIER must be the last instruction in a clause
18 define amdgpu_kernel void @local_memory(ptr addrspace(1) %out) #0 {
20 %y.i = call i32 @llvm.r600.read.tidig.x() #1
21 %arrayidx = getelementptr inbounds [128 x i32], ptr addrspace(3) @local_memory.local_mem, i32 0, i32 %y.i
22 store i32 %y.i, ptr addrspace(3) %arrayidx, align 4
23 %add = add nsw i32 %y.i, 1
24 %cmp = icmp eq i32 %add, 16
25 %.add = select i1 %cmp, i32 0, i32 %add
26 call void @llvm.r600.group.barrier()
27 %arrayidx1 = getelementptr inbounds [128 x i32], ptr addrspace(3) @local_memory.local_mem, i32 0, i32 %.add
28 %tmp = load i32, ptr addrspace(3) %arrayidx1, align 4
29 %arrayidx2 = getelementptr inbounds i32, ptr addrspace(1) %out, i32 %y.i
30 store i32 %tmp, ptr addrspace(1) %arrayidx2, align 4
34 @local_memory_two_objects.local_mem0 = internal unnamed_addr addrspace(3) global [4 x i32] undef, align 4
35 @local_memory_two_objects.local_mem1 = internal unnamed_addr addrspace(3) global [4 x i32] undef, align 4
37 ; Check that the LDS size emitted correctly
41 ; GCN-NEXT: .long 32900
43 ; FUNC-LABEL: {{^}}local_memory_two_objects:
45 ; We would like to check the lds writes are using different
46 ; addresses, but due to variations in the scheduler, we can't do
47 ; this consistently on evergreen GPUs.
51 ; GROUP_BARRIER must be the last instruction in a clause
55 ; Make sure the lds reads are using different addresses, at different
57 ; EG: LDS_READ_RET {{[*]*}} OQAP, {{PV|T}}[[ADDRR:[0-9]*\.[XYZW]]]
58 ; EG-NOT: LDS_READ_RET {{[*]*}} OQAP, T[[ADDRR]]
60 define amdgpu_kernel void @local_memory_two_objects(ptr addrspace(1) %out) #0 {
62 %x.i = call i32 @llvm.r600.read.tidig.x() #1
63 %arrayidx = getelementptr inbounds [4 x i32], ptr addrspace(3) @local_memory_two_objects.local_mem0, i32 0, i32 %x.i
64 store i32 %x.i, ptr addrspace(3) %arrayidx, align 4
65 %mul = shl nsw i32 %x.i, 1
66 %arrayidx1 = getelementptr inbounds [4 x i32], ptr addrspace(3) @local_memory_two_objects.local_mem1, i32 0, i32 %x.i
67 store i32 %mul, ptr addrspace(3) %arrayidx1, align 4
68 %sub = sub nsw i32 3, %x.i
69 call void @llvm.r600.group.barrier()
70 %arrayidx2 = getelementptr inbounds [4 x i32], ptr addrspace(3) @local_memory_two_objects.local_mem0, i32 0, i32 %sub
71 %tmp = load i32, ptr addrspace(3) %arrayidx2, align 4
72 %arrayidx3 = getelementptr inbounds i32, ptr addrspace(1) %out, i32 %x.i
73 store i32 %tmp, ptr addrspace(1) %arrayidx3, align 4
74 %arrayidx4 = getelementptr inbounds [4 x i32], ptr addrspace(3) @local_memory_two_objects.local_mem1, i32 0, i32 %sub
75 %tmp1 = load i32, ptr addrspace(3) %arrayidx4, align 4
76 %add = add nsw i32 %x.i, 4
77 %arrayidx5 = getelementptr inbounds i32, ptr addrspace(1) %out, i32 %add
78 store i32 %tmp1, ptr addrspace(1) %arrayidx5, align 4
82 declare i32 @llvm.r600.read.tidig.x() #1
83 declare void @llvm.r600.group.barrier() #2
85 attributes #0 = { nounwind }
86 attributes #1 = { nounwind readnone }
87 attributes #2 = { convergent nounwind }