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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
271 lines
13 KiB
LLVM
271 lines
13 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX6,GFX6_8_9,MAD %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX8,GFX6_8_9,GFX8_9,GFX8_9_10,MAD %s
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; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX9,GFX6_8_9,GFX8_9,GFX8_9_10,MAD %s
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; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX10,GFX8_9_10,GFX10-MAD %s
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; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -fp-contract=fast < %s | FileCheck -check-prefixes=GCN,GFX10,GFX8_9_10,FMA %s
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declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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declare float @llvm.fabs.f32(float) nounwind readnone
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; GCN-LABEL: {{^}}madak_f32:
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; GFX6: buffer_load_dword [[VA:v[0-9]+]]
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; GFX6: buffer_load_dword [[VB:v[0-9]+]]
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; GFX8: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX8: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; GFX9: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX9: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; GFX10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; MAD: v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
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; GFX10-MAD: v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
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; FMA: v_fmaak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
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define amdgpu_kernel void @madak_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
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%in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %in.a.gep, align 4
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%b = load float, float addrspace(1)* %in.b.gep, align 4
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%mul = fmul float %a, %b
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%madak = fadd float %mul, 10.0
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store float %madak, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; Make sure this is only folded with one use. This is a code size
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; optimization and if we fold the immediate multiple times, we'll undo
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; it.
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; GCN-LABEL: {{^}}madak_2_use_f32:
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; GFX9: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GFX10: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GFX6-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 glc{{$}}
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; GFX6-DAG: buffer_load_dword [[VB:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
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; GFX6-DAG: buffer_load_dword [[VC:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8
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; GFX8_9_10: {{flat|global}}_load_dword [[VA:v[0-9]+]],
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; GFX8_9_10: {{flat|global}}_load_dword [[VB:v[0-9]+]],
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; GFX8_9_10: {{flat|global}}_load_dword [[VC:v[0-9]+]],
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; GFX6-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GFX8-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GFX6_8_9-DAG: v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
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; GFX10-MAD-DAG:v_madak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
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; FMA-DAG: v_fmaak_f32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
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; MAD-DAG: v_mac_f32_e32 [[VK]], [[VA]], [[VC]]
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; FMA-DAG: v_fmac_f32_e32 [[VK]], [[VA]], [[VC]]
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; GCN: s_endpgm
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define amdgpu_kernel void @madak_2_use_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.gep.0 = getelementptr float, float addrspace(1)* %in, i32 %tid
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%in.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
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%in.gep.2 = getelementptr float, float addrspace(1)* %in.gep.0, i32 2
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%out.gep.0 = getelementptr float, float addrspace(1)* %out, i32 %tid
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%out.gep.1 = getelementptr float, float addrspace(1)* %in.gep.0, i32 1
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%a = load volatile float, float addrspace(1)* %in.gep.0, align 4
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%b = load volatile float, float addrspace(1)* %in.gep.1, align 4
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%c = load volatile float, float addrspace(1)* %in.gep.2, align 4
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%mul0 = fmul float %a, %b
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%mul1 = fmul float %a, %c
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%madak0 = fadd float %mul0, 10.0
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%madak1 = fadd float %mul1, 10.0
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store volatile float %madak0, float addrspace(1)* %out.gep.0, align 4
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store volatile float %madak1, float addrspace(1)* %out.gep.1, align 4
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ret void
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}
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; GCN-LABEL: {{^}}madak_m_inline_imm_f32:
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; GCN: {{buffer|flat|global}}_load_dword [[VA:v[0-9]+]]
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; MAD: v_madak_f32 {{v[0-9]+}}, 4.0, [[VA]], 0x41200000
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; GFX10-MAD: v_madak_f32 {{v[0-9]+}}, 4.0, [[VA]], 0x41200000
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; FMA: v_fmaak_f32 {{v[0-9]+}}, 4.0, [[VA]], 0x41200000
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define amdgpu_kernel void @madak_m_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %in.a.gep, align 4
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%mul = fmul float 4.0, %a
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%madak = fadd float %mul, 10.0
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store float %madak, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; Make sure nothing weird happens with a value that is also allowed as
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; an inline immediate.
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; GCN-LABEL: {{^}}madak_inline_imm_f32:
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; GFX6: buffer_load_dword [[VA:v[0-9]+]]
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; GFX6: buffer_load_dword [[VB:v[0-9]+]]
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; GFX8: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX8: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; GFX9: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX9: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; GFX10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; MAD: v_mad_f32 {{v[0-9]+}}, [[VA]], [[VB]], 4.0
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; GFX10-MAD: v_mad_f32 {{v[0-9]+}}, [[VA]], [[VB]], 4.0
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; FMA: v_fma_f32 {{v[0-9]+}}, [[VA]], [[VB]], 4.0
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define amdgpu_kernel void @madak_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
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%in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %in.a.gep, align 4
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%b = load float, float addrspace(1)* %in.b.gep, align 4
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%mul = fmul float %a, %b
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%madak = fadd float %mul, 4.0
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store float %madak, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; We can't use an SGPR when forming madak
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; GCN-LABEL: {{^}}s_v_madak_f32:
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; GCN-DAG: s_load_dword [[SB:s[0-9]+]]
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; GFX6_8_9-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GCN-DAG: {{buffer|flat|global}}_load_dword{{(_addtid)?}} [[VA:v[0-9]+]]
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; GCN-NOT: v_madak_f32
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; GFX6_8_9: v_mac_f32_e32 [[VK]], [[SB]], [[VA]]
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; GFX10-MAD: v_mad_f32 v{{[0-9]+}}, [[VA]], [[SB]], 0x41200000
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; FMA: v_fma_f32 v{{[0-9]+}}, [[VA]], [[SB]], 0x41200000
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define amdgpu_kernel void @s_v_madak_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float %b) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %in.a.gep, align 4
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%mul = fmul float %a, %b
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%madak = fadd float %mul, 10.0
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store float %madak, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: @v_s_madak_f32
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; GCN-DAG: s_load_dword [[SB:s[0-9]+]]
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; GFX6_8_9-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GCN-DAG: {{buffer|flat|global}}_load_dword{{(_addtid)?}} [[VA:v[0-9]+]]
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; GFX6_8_9-NOT: v_madak_f32
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; GFX6_8_9: v_mac_f32_e32 [[VK]], [[SB]], [[VA]]
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; GFX10-MAD: v_madak_f32 v{{[0-9]+}}, [[SB]], [[VA]], 0x41200000
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; FMA: v_fmaak_f32 v{{[0-9]+}}, [[SB]], [[VA]], 0x41200000
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define amdgpu_kernel void @v_s_madak_f32(float addrspace(1)* noalias %out, float %a, float addrspace(1)* noalias %in.b) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%b = load float, float addrspace(1)* %in.b.gep, align 4
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%mul = fmul float %a, %b
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%madak = fadd float %mul, 10.0
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store float %madak, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: {{^}}s_s_madak_f32:
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; GCN-NOT: v_madak_f32
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; GFX8_9: v_mac_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}}
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; GFX10-MAD: v_mac_f32_e64 {{v[0-9]+}}, {{s[0-9]+}}, {{s[0-9]+}}
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; FMA: v_fmac_f32_e64 {{v[0-9]+}}, {{s[0-9]+}}, {{s[0-9]+}}
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define amdgpu_kernel void @s_s_madak_f32(float addrspace(1)* %out, float %a, float %b) #0 {
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%mul = fmul float %a, %b
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%madak = fadd float %mul, 10.0
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store float %madak, float addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: {{^}}no_madak_src0_modifier_f32:
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; GFX6: buffer_load_dword [[VA:v[0-9]+]]
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; GFX6: buffer_load_dword [[VB:v[0-9]+]]
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; GFX8_9_10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; GFX8_9_10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX6_8_9: v_mad_f32 {{v[0-9]+}}, |{{v[0-9]+}}|, {{v[0-9]+}}, {{[sv][0-9]+}}
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; GFX10-MAD: v_mad_f32 {{v[0-9]+}}, |{{v[0-9]+}}|, {{v[0-9]+}}, 0x41200000
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; FMA: v_fma_f32 {{v[0-9]+}}, |{{v[0-9]+}}|, {{v[0-9]+}}, 0x41200000
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; GCN: s_endpgm
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define amdgpu_kernel void @no_madak_src0_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
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%in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %in.a.gep, align 4
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%b = load float, float addrspace(1)* %in.b.gep, align 4
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%a.fabs = call float @llvm.fabs.f32(float %a) nounwind readnone
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%mul = fmul float %a.fabs, %b
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%madak = fadd float %mul, 10.0
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store float %madak, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; GCN-LABEL: {{^}}no_madak_src1_modifier_f32:
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; GFX6: buffer_load_dword [[VA:v[0-9]+]]
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; GFX6: buffer_load_dword [[VB:v[0-9]+]]
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; GFX8_9_10: {{flat|global}}_load_dword [[VB:v[0-9]+]]
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; GFX8_9_10: {{flat|global}}_load_dword [[VA:v[0-9]+]]
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; GFX6_8_9: v_mad_f32 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|, {{[sv][0-9]+}}
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; GFX10-MAD: v_mad_f32 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|, 0x41200000
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; FMA: v_fma_f32 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|, 0x41200000
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; GCN: s_endpgm
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define amdgpu_kernel void @no_madak_src1_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) #0 {
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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%in.a.gep = getelementptr float, float addrspace(1)* %in.a, i32 %tid
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%in.b.gep = getelementptr float, float addrspace(1)* %in.b, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %in.a.gep, align 4
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%b = load float, float addrspace(1)* %in.b.gep, align 4
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%b.fabs = call float @llvm.fabs.f32(float %b) nounwind readnone
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%mul = fmul float %a, %b.fabs
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%madak = fadd float %mul, 10.0
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store float %madak, float addrspace(1)* %out.gep, align 4
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ret void
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}
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; SIFoldOperands should not fold the SGPR copy into the instruction before GFX10
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; because the implicit immediate already uses the constant bus.
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; On GFX10+ we can use two scalar operands.
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; GCN-LABEL: {{^}}madak_constant_bus_violation:
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; GCN: s_load_dword [[SGPR0:s[0-9]+]], s{{\[[0-9]+:[0-9]+\]}}, {{0x12|0x48}}
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; GCN: {{buffer|flat|global}}_load_dword [[VGPR:v[0-9]+]]
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; MAD: v_mov_b32_e32 [[MADAK:v[0-9]+]], 0x42280000
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; MAD: v_mac_f32_e64 [[MADAK]], [[SGPR0]], 0.5
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; GFX10: v_mov_b32_e32 [[SGPR0_VCOPY:v[0-9]+]], [[SGPR0]]
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; GFX10-MAD: v_madak_f32 [[MADAK:v[0-9]+]], 0.5, [[SGPR0_VCOPY]], 0x42280000
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; FMA: v_fmaak_f32 [[MADAK:v[0-9]+]], 0.5, [[SGPR0_VCOPY]], 0x42280000
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; GCN: v_mul_f32_e32 [[MUL:v[0-9]+]], [[MADAK]], [[VGPR]]
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; GFX6: buffer_store_dword [[MUL]]
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; GFX8_9_10: {{flat|global}}_store_dword v[{{[0-9:]+}}], [[MUL]]
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define amdgpu_kernel void @madak_constant_bus_violation(i32 %arg1, [8 x i32], float %sgpr0, float %sgpr1) #0 {
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bb:
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%tmp = icmp eq i32 %arg1, 0
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br i1 %tmp, label %bb3, label %bb4
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bb3:
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store volatile float 0.0, float addrspace(1)* undef
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br label %bb4
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bb4:
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%vgpr = load volatile float, float addrspace(1)* undef
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%tmp0 = fmul float %sgpr0, 0.5
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%tmp1 = fadd float %tmp0, 42.0
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%tmp2 = fmul float %tmp1, %vgpr
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store volatile float %tmp2, float addrspace(1)* undef, align 4
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ret void
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}
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attributes #0 = { nounwind "denormal-fp-math-f32"="preserve-sign,preserve-sign" }
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