| ; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG %s |
| ; RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=GCN --check-prefix=SI %s |
| ; RUN: llc < %s -march=amdgcn -mcpu=bonaire -verify-machineinstrs | FileCheck --check-prefix=GCN --check-prefix=CI %s |
| |
| @local_memory_two_objects.local_mem0 = internal unnamed_addr addrspace(3) global [4 x i32] undef, align 4 |
| @local_memory_two_objects.local_mem1 = internal unnamed_addr addrspace(3) global [4 x i32] undef, align 4 |
| |
| |
| ; Check that the LDS size emitted correctly |
| ; EG: .long 166120 |
| ; EG-NEXT: .long 8 |
| ; GCN: .long 47180 |
| ; GCN-NEXT: .long 32900 |
| |
| ; EG: {{^}}local_memory_two_objects: |
| |
| ; We would like to check the lds writes are using different |
| ; addresses, but due to variations in the scheduler, we can't do |
| ; this consistently on evergreen GPUs. |
| ; EG: LDS_WRITE |
| ; EG: LDS_WRITE |
| ; GCN: ds_write_b32 {{v[0-9]*}}, v[[ADDRW:[0-9]*]] |
| ; GCN-NOT: ds_write_b32 {{v[0-9]*}}, v[[ADDRW]] |
| |
| ; GROUP_BARRIER must be the last instruction in a clause |
| ; EG: GROUP_BARRIER |
| ; EG-NEXT: ALU clause |
| |
| ; Make sure the lds reads are using different addresses, at different |
| ; constant offsets. |
| ; EG: LDS_READ_RET {{[*]*}} OQAP, {{PV|T}}[[ADDRR:[0-9]*\.[XYZW]]] |
| ; EG-NOT: LDS_READ_RET {{[*]*}} OQAP, T[[ADDRR]] |
| ; SI: v_add_i32_e32 [[SIPTR:v[0-9]+]], vcc, 16, v{{[0-9]+}} |
| ; SI: ds_read_b32 {{v[0-9]+}}, [[SIPTR]] |
| ; CI: ds_read_b32 {{v[0-9]+}}, [[ADDRR:v[0-9]+]] offset:16 |
| ; CI: ds_read_b32 {{v[0-9]+}}, [[ADDRR]] |
| |
| define void @local_memory_two_objects(i32 addrspace(1)* %out) { |
| entry: |
| %x.i = call i32 @llvm.r600.read.tidig.x() #0 |
| %arrayidx = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem0, i32 0, i32 %x.i |
| store i32 %x.i, i32 addrspace(3)* %arrayidx, align 4 |
| %mul = shl nsw i32 %x.i, 1 |
| %arrayidx1 = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem1, i32 0, i32 %x.i |
| store i32 %mul, i32 addrspace(3)* %arrayidx1, align 4 |
| %sub = sub nsw i32 3, %x.i |
| call void @llvm.AMDGPU.barrier.local() |
| %arrayidx2 = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem0, i32 0, i32 %sub |
| %0 = load i32, i32 addrspace(3)* %arrayidx2, align 4 |
| %arrayidx3 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %x.i |
| store i32 %0, i32 addrspace(1)* %arrayidx3, align 4 |
| %arrayidx4 = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @local_memory_two_objects.local_mem1, i32 0, i32 %sub |
| %1 = load i32, i32 addrspace(3)* %arrayidx4, align 4 |
| %add = add nsw i32 %x.i, 4 |
| %arrayidx5 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %add |
| store i32 %1, i32 addrspace(1)* %arrayidx5, align 4 |
| ret void |
| } |
| |
| declare i32 @llvm.r600.read.tidig.x() #0 |
| declare void @llvm.AMDGPU.barrier.local() |
| |
| attributes #0 = { readnone } |