| ; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s |
| ; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=FUNC %s |
| ; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s |
| |
| @local_memory.local_mem = internal unnamed_addr addrspace(3) global [128 x i32] undef, align 4 |
| |
| |
| ; Check that the LDS size emitted correctly |
| ; EG: .long 166120 |
| ; EG-NEXT: .long 128 |
| ; SI: .long 47180 |
| ; SI-NEXT: .long 65668 |
| ; CI: .long 47180 |
| ; CI-NEXT: .long 32900 |
| |
| ; FUNC-LABEL: {{^}}local_memory: |
| |
| ; EG: LDS_WRITE |
| ; SI-NOT: s_wqm_b64 |
| ; SI: ds_write_b32 |
| |
| ; GROUP_BARRIER must be the last instruction in a clause |
| ; EG: GROUP_BARRIER |
| ; EG-NEXT: ALU clause |
| ; SI: s_barrier |
| |
| ; EG: LDS_READ_RET |
| ; SI: ds_read_b32 {{v[0-9]+}}, |
| |
| define void @local_memory(i32 addrspace(1)* %out) { |
| entry: |
| %y.i = call i32 @llvm.r600.read.tidig.x() #0 |
| %arrayidx = getelementptr inbounds [128 x i32], [128 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %y.i |
| store i32 %y.i, i32 addrspace(3)* %arrayidx, align 4 |
| %add = add nsw i32 %y.i, 1 |
| %cmp = icmp eq i32 %add, 16 |
| %.add = select i1 %cmp, i32 0, i32 %add |
| call void @llvm.AMDGPU.barrier.local() |
| %arrayidx1 = getelementptr inbounds [128 x i32], [128 x i32] addrspace(3)* @local_memory.local_mem, i32 0, i32 %.add |
| %0 = load i32, i32 addrspace(3)* %arrayidx1, align 4 |
| %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %y.i |
| store i32 %0, i32 addrspace(1)* %arrayidx2, align 4 |
| ret void |
| } |
| |
| @lds = addrspace(3) global [512 x i32] undef, align 4 |
| |
| ; On SI we need to make sure that the base offset is a register and not |
| ; an immediate. |
| ; FUNC-LABEL: {{^}}load_i32_local_const_ptr: |
| ; GCN: v_mov_b32_e32 v[[ZERO:[0-9]+]], 0 |
| ; GCN: ds_read_b32 v{{[0-9]+}}, v[[ZERO]] offset:4 |
| ; R600: LDS_READ_RET |
| define void @load_i32_local_const_ptr(i32 addrspace(1)* %out, i32 addrspace(3)* %in) { |
| entry: |
| %tmp0 = getelementptr [512 x i32], [512 x i32] addrspace(3)* @lds, i32 0, i32 1 |
| %tmp1 = load i32, i32 addrspace(3)* %tmp0 |
| %tmp2 = getelementptr i32, i32 addrspace(1)* %out, i32 1 |
| store i32 %tmp1, i32 addrspace(1)* %tmp2 |
| ret void |
| } |
| |
| ; Test loading a i32 and v2i32 value from the same base pointer. |
| ; FUNC-LABEL: {{^}}load_i32_v2i32_local: |
| ; R600: LDS_READ_RET |
| ; R600: LDS_READ_RET |
| ; R600: LDS_READ_RET |
| ; GCN-DAG: ds_read_b32 |
| ; GCN-DAG: ds_read2_b32 |
| define void @load_i32_v2i32_local(<2 x i32> addrspace(1)* %out, i32 addrspace(3)* %in) { |
| %scalar = load i32, i32 addrspace(3)* %in |
| %tmp0 = bitcast i32 addrspace(3)* %in to <2 x i32> addrspace(3)* |
| %vec_ptr = getelementptr <2 x i32>, <2 x i32> addrspace(3)* %tmp0, i32 2 |
| %vec0 = load <2 x i32>, <2 x i32> addrspace(3)* %vec_ptr, align 4 |
| %vec1 = insertelement <2 x i32> <i32 0, i32 0>, i32 %scalar, i32 0 |
| %vec = add <2 x i32> %vec0, %vec1 |
| store <2 x i32> %vec, <2 x i32> addrspace(1)* %out |
| ret void |
| } |
| |
| declare i32 @llvm.r600.read.tidig.x() #0 |
| declare void @llvm.AMDGPU.barrier.local() |
| |
| attributes #0 = { readnone } |