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ccb53c0a97
Treat a non-atomic volatile load and store as a relaxed atomic at system scope for the address spaces accessed. This will ensure all relevant caches will be bypassed. A volatile atomic is not changed and still only bypasses caches upto the level specified by the SyncScope operand. Differential Revision: https://reviews.llvm.org/D94214
137 lines
7.0 KiB
LLVM
137 lines
7.0 KiB
LLVM
; 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 -mtriple=amdgcn-amd-amdhsa -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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; GCN-LABEL: @simple_write2st64_one_val_f32_0_1
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; CI-DAG: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN-DAG: {{buffer|global}}_load_dword [[VAL:v[0-9]+]]
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; GCN-DAG: v_lshlrev_b32_e32 [[VPTR:v[0-9]+]], 2, v{{[0-9]+}}
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; GCN: ds_write2st64_b32 [[VPTR]], [[VAL]], [[VAL]] offset1:1
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; GCN: s_endpgm
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define amdgpu_kernel void @simple_write2st64_one_val_f32_0_1(float addrspace(1)* %C, float addrspace(1)* %in) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%in.gep = getelementptr float, float addrspace(1)* %in, i32 %x.i
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%val = load float, float addrspace(1)* %in.gep, align 4
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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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store float %val, 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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store float %val, float addrspace(3)* %arrayidx1, align 4
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ret void
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}
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; GCN-LABEL: @simple_write2st64_two_val_f32_2_5
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; CI-DAG: s_mov_b32 m0
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; GFX9-NOT: m0
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; CI-DAG: buffer_load_dword [[VAL0:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
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; CI-DAG: buffer_load_dword [[VAL1:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; GFX9-DAG: global_load_dword [[VAL0:v[0-9]+]], v{{[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}} glc{{$}}
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; GFX9-DAG: global_load_dword [[VAL1:v[0-9]+]], v{{[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}} offset:4 glc{{$}}
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; GCN-DAG: v_lshlrev_b32_e32 [[VPTR:v[0-9]+]], 2, v{{[0-9]+}}
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; GCN: ds_write2st64_b32 [[VPTR]], [[VAL0]], [[VAL1]] offset0:2 offset1:5
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; GCN: s_endpgm
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define amdgpu_kernel void @simple_write2st64_two_val_f32_2_5(float addrspace(1)* %C, float addrspace(1)* %in) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%in.gep.0 = getelementptr float, float addrspace(1)* %in, i32 %x.i
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%in.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
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%val0 = load volatile float, float addrspace(1)* %in.gep.0, align 4
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%val1 = load volatile float, float addrspace(1)* %in.gep.1, align 4
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%add.x.0 = add nsw i32 %x.i, 128
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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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store float %val0, float addrspace(3)* %arrayidx0, align 4
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%add.x.1 = add nsw i32 %x.i, 320
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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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store float %val1, float addrspace(3)* %arrayidx1, align 4
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ret void
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}
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; GCN-LABEL: @simple_write2st64_two_val_max_offset_f32
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; CI-DAG: s_mov_b32 m0
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; GFX9-NOT: m0
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; CI-DAG: buffer_load_dword [[VAL0:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
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; CI-DAG: buffer_load_dword [[VAL1:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; GFX9-DAG: global_load_dword [[VAL0:v[0-9]+]], v{{[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}} glc{{$}}
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; GFX9-DAG: global_load_dword [[VAL1:v[0-9]+]], v{{[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}} offset:4
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; GCN-DAG: v_lshlrev_b32_e32 [[SHL:v[0-9]+]], 2, v{{[0-9]+}}
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; GCN-DAG: v_add_{{i|u}}32_e32 [[VPTR:v[0-9]+]], {{(vcc, )?}}s{{[0-9]+}}, [[SHL]]
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; GCN: ds_write2st64_b32 [[VPTR]], [[VAL0]], [[VAL1]] offset1:255
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; GCN: s_endpgm
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define amdgpu_kernel void @simple_write2st64_two_val_max_offset_f32(float addrspace(1)* %C, float addrspace(1)* %in, float addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%in.gep.0 = getelementptr float, float addrspace(1)* %in, i32 %x.i
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%in.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
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%val0 = load volatile float, float addrspace(1)* %in.gep.0, align 4
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%val1 = load volatile float, float addrspace(1)* %in.gep.1, align 4
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%arrayidx0 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %x.i
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store float %val0, float addrspace(3)* %arrayidx0, align 4
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%add.x = add nsw i32 %x.i, 16320
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%arrayidx1 = getelementptr inbounds float, float addrspace(3)* %lds, i32 %add.x
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store float %val1, float addrspace(3)* %arrayidx1, align 4
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ret void
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}
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; GCN-LABEL: @simple_write2st64_two_val_max_offset_f64
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; CI-DAG: s_mov_b32 m0
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; GFX9-NOT: m0
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; CI-DAG: buffer_load_dwordx2 [[VAL0:v\[[0-9]+:[0-9]+\]]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
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; CI-DAG: buffer_load_dwordx2 [[VAL1:v\[[0-9]+:[0-9]+\]]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8
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; GFX9-DAG: global_load_dwordx2 [[VAL0:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}} glc{{$}}
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; GFX9-DAG: global_load_dwordx2 [[VAL1:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}} offset:8
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; GCN-DAG: v_lshlrev_b32_e32 [[SHL:v[0-9]+]], 3, v{{[0-9]+}}
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; GCN-DAG: v_add_{{i|u}}32_e32 [[VPTR:v[0-9]+]], {{(vcc, )?}}s{{[0-9]+}}, [[SHL]]
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; GCN: ds_write2st64_b64 [[VPTR]], [[VAL0]], [[VAL1]] offset0:4 offset1:127
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; GCN: s_endpgm
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define amdgpu_kernel void @simple_write2st64_two_val_max_offset_f64(double addrspace(1)* %C, double addrspace(1)* %in, double addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%in.gep.0 = getelementptr double, double addrspace(1)* %in, i32 %x.i
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%in.gep.1 = getelementptr double, double addrspace(1)* %in.gep.0, i32 1
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%val0 = load volatile double, double addrspace(1)* %in.gep.0, align 8
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%val1 = load volatile double, double addrspace(1)* %in.gep.1, align 8
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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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store double %val0, 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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store double %val1, double addrspace(3)* %arrayidx1, align 8
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ret void
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}
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; GCN-LABEL: @byte_size_only_divisible_64_write2st64_f64
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; CI-DAG: s_mov_b32 m0
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; GFX9-NOT: m0
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; GCN-NOT: ds_write2st64_b64
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; GCN: ds_write2_b64 {{v[0-9]+}}, {{v\[[0-9]+:[0-9]+\]}}, {{v\[[0-9]+:[0-9]+\]}} offset1:8
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; GCN: s_endpgm
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define amdgpu_kernel void @byte_size_only_divisible_64_write2st64_f64(double addrspace(1)* %C, double addrspace(1)* %in, double addrspace(3)* %lds) #0 {
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%x.i = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%in.gep = getelementptr double, double addrspace(1)* %in, i32 %x.i
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%val = load double, double addrspace(1)* %in.gep, align 8
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%arrayidx0 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %x.i
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store double %val, double addrspace(3)* %arrayidx0, align 8
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%add.x = add nsw i32 %x.i, 8
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%arrayidx1 = getelementptr inbounds double, double addrspace(3)* %lds, i32 %add.x
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store double %val, double addrspace(3)* %arrayidx1, align 8
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ret void
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}
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declare i32 @llvm.amdgcn.workitem.id.x() #1
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declare i32 @llvm.amdgcn.workitem.id.y() #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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attributes #2 = { convergent nounwind }
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