302 lines
14 KiB
LLVM
302 lines
14 KiB
LLVM
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; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs -mattr=+load-store-opt < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CI %s
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; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -mattr=+load-store-opt < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9 %s
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@lds = addrspace(3) global [512 x float] undef, align 4
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@lds.f64 = addrspace(3) global [512 x double] undef, align 8
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; GCN-LABEL: @simple_read2st64_f32_0_1
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN: ds_read2st64_b32 v{{\[}}[[LO_VREG:[0-9]+]]:[[HI_VREG:[0-9]+]]{{\]}}, v{{[0-9]+}} offset1:1
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; GCN: s_waitcnt lgkmcnt(0)
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; GCN: v_add_f32_e32 [[RESULT:v[0-9]+]], v[[LO_VREG]], v[[HI_VREG]]
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; CI: buffer_store_dword [[RESULT]]
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; GFX9: global_store_dword v{{[0-9]+}}, [[RESULT]], s{{\[[0-9]+:[0-9]+\]}}
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define amdgpu_kernel void @simple_read2st64_f32_0_1(float addrspace(1)* %out) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%arrayidx0 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %x.i
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%val0 = load float, float addrspace(3)* %arrayidx0, align 4
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%add.x = add nsw i32 %x.i, 64
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%arrayidx1 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %add.x
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%val1 = load float, float addrspace(3)* %arrayidx1, align 4
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%sum = fadd float %val0, %val1
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%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
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store float %sum, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: @simple_read2st64_f32_1_2
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN: ds_read2st64_b32 v{{\[}}[[LO_VREG:[0-9]+]]:[[HI_VREG:[0-9]+]]{{\]}}, v{{[0-9]+}} offset0:1 offset1:2
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; GCN: s_waitcnt lgkmcnt(0)
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; GCN: v_add_f32_e32 [[RESULT:v[0-9]+]], v[[LO_VREG]], v[[HI_VREG]]
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; CI: buffer_store_dword [[RESULT]]
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; GFX9: global_store_dword v{{[0-9]+}}, [[RESULT]], s{{\[[0-9]+:[0-9]+\]}}
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define amdgpu_kernel void @simple_read2st64_f32_1_2(float addrspace(1)* %out, float addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%add.x.0 = add nsw i32 %x.i, 64
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%arrayidx0 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %add.x.0
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%val0 = load float, float addrspace(3)* %arrayidx0, align 4
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%add.x.1 = add nsw i32 %x.i, 128
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%arrayidx1 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %add.x.1
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%val1 = load float, float addrspace(3)* %arrayidx1, align 4
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%sum = fadd float %val0, %val1
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%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
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store float %sum, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: @simple_read2st64_f32_max_offset
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN: ds_read2st64_b32 v{{\[}}[[LO_VREG:[0-9]+]]:[[HI_VREG:[0-9]+]]{{\]}}, v{{[0-9]+}} offset0:1 offset1:255
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; GCN: s_waitcnt lgkmcnt(0)
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; GCN: v_add_f32_e32 [[RESULT:v[0-9]+]], v[[LO_VREG]], v[[HI_VREG]]
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; CI: buffer_store_dword [[RESULT]]
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; GFX9: global_store_dword v{{[0-9]+}}, [[RESULT]], s{{\[[0-9]+:[0-9]+\]}}
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define amdgpu_kernel void @simple_read2st64_f32_max_offset(float addrspace(1)* %out, float addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%add.x.0 = add nsw i32 %x.i, 64
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%arrayidx0 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %add.x.0
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%val0 = load float, float addrspace(3)* %arrayidx0, align 4
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%add.x.1 = add nsw i32 %x.i, 16320
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%arrayidx1 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %add.x.1
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%val1 = load float, float addrspace(3)* %arrayidx1, align 4
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%sum = fadd float %val0, %val1
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%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
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store float %sum, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: @simple_read2st64_f32_over_max_offset
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN-NOT: ds_read2st64_b32
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; GCN-DAG: v_add_{{i|u}}32_e32 [[BIGADD:v[0-9]+]], {{(vcc, )?}}0x10000, {{v[0-9]+}}
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; GCN-DAG: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:256
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; GCN-DAG: ds_read_b32 {{v[0-9]+}}, [[BIGADD]]{{$}}
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; GCN: s_endpgm
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define amdgpu_kernel void @simple_read2st64_f32_over_max_offset(float addrspace(1)* %out, float addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%add.x.0 = add nsw i32 %x.i, 64
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%arrayidx0 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %add.x.0
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%val0 = load float, float addrspace(3)* %arrayidx0, align 4
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%add.x.1 = add nsw i32 %x.i, 16384
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%arrayidx1 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %add.x.1
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%val1 = load float, float addrspace(3)* %arrayidx1, align 4
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%sum = fadd float %val0, %val1
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%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
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store float %sum, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: @odd_invalid_read2st64_f32_0
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN-NOT: ds_read2st64_b32
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; GCN: s_endpgm
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define amdgpu_kernel void @odd_invalid_read2st64_f32_0(float addrspace(1)* %out) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%arrayidx0 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %x.i
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%val0 = load float, float addrspace(3)* %arrayidx0, align 4
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%add.x = add nsw i32 %x.i, 63
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%arrayidx1 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %add.x
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%val1 = load float, float addrspace(3)* %arrayidx1, align 4
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%sum = fadd float %val0, %val1
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%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
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store float %sum, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: @odd_invalid_read2st64_f32_1
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN-NOT: ds_read2st64_b32
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; GCN: s_endpgm
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define amdgpu_kernel void @odd_invalid_read2st64_f32_1(float addrspace(1)* %out) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%add.x.0 = add nsw i32 %x.i, 64
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%arrayidx0 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %add.x.0
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%val0 = load float, float addrspace(3)* %arrayidx0, align 4
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%add.x.1 = add nsw i32 %x.i, 127
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%arrayidx1 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 %add.x.1
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%val1 = load float, float addrspace(3)* %arrayidx1, align 4
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%sum = fadd float %val0, %val1
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%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i32 %x.i
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store float %sum, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: @simple_read2st64_f64_0_1
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN: ds_read2st64_b64 v{{\[}}[[LO_VREG:[0-9]+]]:[[HI_VREG:[0-9]+]]{{\]}}, v{{[0-9]+}} offset1:1
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; GCN: s_waitcnt lgkmcnt(0)
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; GCN: v_add_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], v{{\[}}[[LO_VREG]]:{{[0-9]+\]}}, v{{\[[0-9]+}}:[[HI_VREG]]{{\]}}
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; CI: buffer_store_dwordx2 [[RESULT]]
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; GFX9: global_store_dwordx2 v{{[0-9]+}}, [[RESULT]], s{{\[[0-9]+:[0-9]+\]}}
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define amdgpu_kernel void @simple_read2st64_f64_0_1(double addrspace(1)* %out) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%arrayidx0 = getelementptr inbounds [512 x double], [512 x double] addrspace(3)* @lds.f64, i32 0, i32 %x.i
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%val0 = load double, double addrspace(3)* %arrayidx0, align 8
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%add.x = add nsw i32 %x.i, 64
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%arrayidx1 = getelementptr inbounds [512 x double], [512 x double] addrspace(3)* @lds.f64, i32 0, i32 %add.x
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%val1 = load double, double addrspace(3)* %arrayidx1, align 8
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%sum = fadd double %val0, %val1
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%out.gep = getelementptr inbounds double, double addrspace(1)* %out, i32 %x.i
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store double %sum, double addrspace(1)* %out.gep, align 8
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ret void
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}
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; GCN-LABEL: @simple_read2st64_f64_1_2
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN: ds_read2st64_b64 v{{\[}}[[LO_VREG:[0-9]+]]:[[HI_VREG:[0-9]+]]{{\]}}, v{{[0-9]+}} offset0:1 offset1:2
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; GCN: s_waitcnt lgkmcnt(0)
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; GCN: v_add_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], v{{\[}}[[LO_VREG]]:{{[0-9]+\]}}, v{{\[[0-9]+}}:[[HI_VREG]]{{\]}}
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; CI: buffer_store_dwordx2 [[RESULT]]
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; GFX9: global_store_dwordx2 v{{[0-9]+}}, [[RESULT]], s{{\[[0-9]+:[0-9]+\]}}
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define amdgpu_kernel void @simple_read2st64_f64_1_2(double addrspace(1)* %out, double addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%add.x.0 = add nsw i32 %x.i, 64
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%arrayidx0 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.0
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%val0 = load double, double addrspace(3)* %arrayidx0, align 8
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%add.x.1 = add nsw i32 %x.i, 128
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%arrayidx1 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.1
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%val1 = load double, double addrspace(3)* %arrayidx1, align 8
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%sum = fadd double %val0, %val1
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%out.gep = getelementptr inbounds double, double addrspace(1)* %out, i32 %x.i
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store double %sum, double addrspace(1)* %out.gep, align 8
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ret void
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}
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; Alignment only
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; GCN-LABEL: @misaligned_read2st64_f64
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN: ds_read2_b32 v{{\[[0-9]+:[0-9]+\]}}, {{v[0-9]+}} offset1:1
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; GCN: ds_read2_b32 v{{\[[0-9]+:[0-9]+\]}}, {{v[0-9]+}} offset0:128 offset1:129
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; GCN: s_endpgm
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define amdgpu_kernel void @misaligned_read2st64_f64(double addrspace(1)* %out, double addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%arrayidx0 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %x.i
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%val0 = load double, double addrspace(3)* %arrayidx0, align 4
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%add.x = add nsw i32 %x.i, 64
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%arrayidx1 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x
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%val1 = load double, double addrspace(3)* %arrayidx1, align 4
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%sum = fadd double %val0, %val1
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%out.gep = getelementptr inbounds double, double addrspace(1)* %out, i32 %x.i
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store double %sum, double addrspace(1)* %out.gep, align 4
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ret void
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}
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; The maximum is not the usual 0xff because 0xff * 8 * 64 > 0xffff
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; GCN-LABEL: @simple_read2st64_f64_max_offset
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN: ds_read2st64_b64 v{{\[}}[[LO_VREG:[0-9]+]]:[[HI_VREG:[0-9]+]]{{\]}}, v{{[0-9]+}} offset0:4 offset1:127
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; GCN: s_waitcnt lgkmcnt(0)
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; GCN: v_add_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], v{{\[}}[[LO_VREG]]:{{[0-9]+\]}}, v{{\[[0-9]+}}:[[HI_VREG]]{{\]}}
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; CI: buffer_store_dwordx2 [[RESULT]]
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; GFX9: global_store_dwordx2 v{{[0-9]+}}, [[RESULT]], s{{\[[0-9]+:[0-9]+\]}}
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define amdgpu_kernel void @simple_read2st64_f64_max_offset(double addrspace(1)* %out, double addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%add.x.0 = add nsw i32 %x.i, 256
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%arrayidx0 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.0
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%val0 = load double, double addrspace(3)* %arrayidx0, align 8
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%add.x.1 = add nsw i32 %x.i, 8128
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%arrayidx1 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.1
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%val1 = load double, double addrspace(3)* %arrayidx1, align 8
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%sum = fadd double %val0, %val1
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%out.gep = getelementptr inbounds double, double addrspace(1)* %out, i32 %x.i
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store double %sum, double addrspace(1)* %out.gep, align 8
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ret void
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}
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; GCN-LABEL: @simple_read2st64_f64_over_max_offset
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; CI: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN-NOT: ds_read2st64_b64
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; GCN-DAG: ds_read_b64 {{v\[[0-9]+:[0-9]+\]}}, {{v[0-9]+}} offset:512
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; GCN-DAG: v_add_{{i|u}}32_e32 [[BIGADD:v[0-9]+]], {{(vcc, )?}}0x10000, {{v[0-9]+}}
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; GCN: ds_read_b64 {{v\[[0-9]+:[0-9]+\]}}, [[BIGADD]]
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; GCN: s_endpgm
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define amdgpu_kernel void @simple_read2st64_f64_over_max_offset(double addrspace(1)* %out, double addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%add.x.0 = add nsw i32 %x.i, 64
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%arrayidx0 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.0
|
||
|
|
%val0 = load double, double addrspace(3)* %arrayidx0, align 8
|
||
|
|
%add.x.1 = add nsw i32 %x.i, 8192
|
||
|
|
%arrayidx1 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.1
|
||
|
|
%val1 = load double, double addrspace(3)* %arrayidx1, align 8
|
||
|
|
%sum = fadd double %val0, %val1
|
||
|
|
%out.gep = getelementptr inbounds double, double addrspace(1)* %out, i32 %x.i
|
||
|
|
store double %sum, double addrspace(1)* %out.gep, align 8
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; GCN-LABEL: @invalid_read2st64_f64_odd_offset
|
||
|
|
; CI: s_mov_b32 m0
|
||
|
|
; GFX9-NOT: m0
|
||
|
|
|
||
|
|
; GCN-NOT: ds_read2st64_b64
|
||
|
|
; GCN: s_endpgm
|
||
|
|
define amdgpu_kernel void @invalid_read2st64_f64_odd_offset(double addrspace(1)* %out, double addrspace(3)* %lds) #0 {
|
||
|
|
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
|
||
|
|
%add.x.0 = add nsw i32 %x.i, 64
|
||
|
|
%arrayidx0 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.0
|
||
|
|
%val0 = load double, double addrspace(3)* %arrayidx0, align 8
|
||
|
|
%add.x.1 = add nsw i32 %x.i, 8129
|
||
|
|
%arrayidx1 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x.1
|
||
|
|
%val1 = load double, double addrspace(3)* %arrayidx1, align 8
|
||
|
|
%sum = fadd double %val0, %val1
|
||
|
|
%out.gep = getelementptr inbounds double, double addrspace(1)* %out, i32 %x.i
|
||
|
|
store double %sum, double addrspace(1)* %out.gep, align 8
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; The stride of 8 elements is 8 * 8 bytes. We need to make sure the
|
||
|
|
; stride in elements, not bytes, is a multiple of 64.
|
||
|
|
|
||
|
|
; GCN-LABEL: @byte_size_only_divisible_64_read2_f64
|
||
|
|
; CI: s_mov_b32 m0
|
||
|
|
; GFX9-NOT: m0
|
||
|
|
|
||
|
|
; GCN-NOT: ds_read2st_b64
|
||
|
|
; GCN: ds_read2_b64 v{{\[[0-9]+:[0-9]+\]}}, v{{[0-9]+}} offset1:8
|
||
|
|
; GCN: s_endpgm
|
||
|
|
define amdgpu_kernel void @byte_size_only_divisible_64_read2_f64(double addrspace(1)* %out, double addrspace(3)* %lds) #0 {
|
||
|
|
%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
|
||
|
|
%arrayidx0 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %x.i
|
||
|
|
%val0 = load double, double addrspace(3)* %arrayidx0, align 8
|
||
|
|
%add.x = add nsw i32 %x.i, 8
|
||
|
|
%arrayidx1 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x
|
||
|
|
%val1 = load double, double addrspace(3)* %arrayidx1, align 8
|
||
|
|
%sum = fadd double %val0, %val1
|
||
|
|
%out.gep = getelementptr inbounds double, double addrspace(1)* %out, i32 %x.i
|
||
|
|
store double %sum, double addrspace(1)* %out.gep, align 4
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @llvm.amdgcn.workitem.id.x() #1
|
||
|
|
declare i32 @llvm.amdgcn.workitem.id.y() #1
|
||
|
|
|
||
|
|
attributes #0 = { nounwind }
|
||
|
|
attributes #1 = { nounwind readnone }
|