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