1 ; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s 2 3 @local_memory.local_mem = internal unnamed_addr addrspace(3) global [128 x i32] undef, align 4 4 5 ; Check that the LDS size emitted correctly 6 ; EG: .long 166120 7 ; EG-NEXT: .long 128 8 9 ; FUNC-LABEL: {{^}}local_memory: 10 11 ; EG: LDS_WRITE 12 13 ; GROUP_BARRIER must be the last instruction in a clause 14 ; EG: GROUP_BARRIER 15 ; EG-NEXT: ALU clause 16 17 ; EG: LDS_READ_RET 18 define amdgpu_kernel void @local_memory(i32 addrspace(1)* %out) #0 { 19 entry: 20 %y.i = call i32 @llvm.r600.read.tidig.x() #1 21 %arrayidx = getelementptr inbounds [128 x i32], [128 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %y.i 22 store i32 %y.i, i32 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], [128 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %.add 28 %tmp = load i32, i32 addrspace(3)* %arrayidx1, align 4 29 %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %y.i 30 store i32 %tmp, i32 addrspace(1)* %arrayidx2, align 4 31 ret void 32 } 33 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 36 37 ; Check that the LDS size emitted correctly 38 ; EG: .long 166120 39 ; EG-NEXT: .long 8 40 ; GCN: .long 47180 41 ; GCN-NEXT: .long 32900 42 43 ; FUNC-LABEL: {{^}}local_memory_two_objects: 44 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. 48 ; EG: LDS_WRITE 49 ; EG: LDS_WRITE 50 51 ; GROUP_BARRIER must be the last instruction in a clause 52 ; EG: GROUP_BARRIER 53 ; EG-NEXT: ALU clause 54 55 ; Make sure the lds reads are using different addresses, at different 56 ; constant offsets. 57 ; EG: LDS_READ_RET {{[*]*}} OQAP, {{PV|T}}[[ADDRR:[0-9]*\.[XYZW]]] 58 ; EG-NOT: LDS_READ_RET {{[*]*}} OQAP, T[[ADDRR]] 59 60 define amdgpu_kernel void @local_memory_two_objects(i32 addrspace(1)* %out) #0 { 61 entry: 62 %x.i = call i32 @llvm.r600.read.tidig.x() #1 63 %arrayidx = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem0, i32 0, i32 %x.i 64 store i32 %x.i, i32 addrspace(3)* %arrayidx, align 4 65 %mul = shl nsw i32 %x.i, 1 66 %arrayidx1 = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem1, i32 0, i32 %x.i 67 store i32 %mul, i32 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], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem0, i32 0, i32 %sub 71 %tmp = load i32, i32 addrspace(3)* %arrayidx2, align 4 72 %arrayidx3 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %x.i 73 store i32 %tmp, i32 addrspace(1)* %arrayidx3, align 4 74 %arrayidx4 = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem1, i32 0, i32 %sub 75 %tmp1 = load i32, i32 addrspace(3)* %arrayidx4, align 4 76 %add = add nsw i32 %x.i, 4 77 %arrayidx5 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %add 78 store i32 %tmp1, i32 addrspace(1)* %arrayidx5, align 4 79 ret void 80 } 81 82 declare i32 @llvm.r600.read.tidig.x() #1 83 declare void @llvm.r600.group.barrier() #2 84 85 attributes #0 = { nounwind } 86 attributes #1 = { nounwind readnone } 87 attributes #2 = { convergent nounwind } 88
