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https://github.com/c64scene-ar/llvm-6502.git
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f5be357d37
The two-address instruction pass will convert these back to v_mad_f32 if necessary. Differential Revision: http://reviews.llvm.org/D11060 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242038 91177308-0d34-0410-b5e6-96231b3b80d8
194 lines
8.1 KiB
LLVM
194 lines
8.1 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=GCN %s
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; XUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=GCN %s
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; FIXME: Enable VI
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declare i32 @llvm.r600.read.tidig.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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; GCN: buffer_load_dword [[VA:v[0-9]+]]
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; GCN: buffer_load_dword [[VB:v[0-9]+]]
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; GCN: v_madak_f32_e32 {{v[0-9]+}}, [[VA]], [[VB]], 0x41200000
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define void @madak_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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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; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
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; GCN-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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; GCN-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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; GCN-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GCN-DAG: v_mad_f32 {{v[0-9]+}}, [[VB]], [[VA]], [[VK]]
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; GCN-DAG: v_mac_f32_e32 [[VK]], [[VC]], [[VA]]
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; GCN: s_endpgm
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define void @madak_2_use_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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 float, float addrspace(1)* %in.gep.0, align 4
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%b = load float, float addrspace(1)* %in.gep.1, align 4
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%c = load 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 float %madak0, float addrspace(1)* %out.gep.0, align 4
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store 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_load_dword [[VA:v[0-9]+]]
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; GCN: v_madak_f32_e32 {{v[0-9]+}}, 4.0, [[VA]], 0x41200000
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define void @madak_m_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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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; GCN: buffer_load_dword [[VA:v[0-9]+]]
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; GCN: buffer_load_dword [[VB:v[0-9]+]]
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; GCN: v_mad_f32 {{v[0-9]+}}, [[VA]], [[VB]], 4.0
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define void @madak_inline_imm_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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: s_load_dword [[SB:s[0-9]+]]
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; GCN-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]]
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; GCN-NOT: v_madak_f32
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; GCN: v_mac_f32_e32 [[VK]], [[SB]], [[VA]]
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define void @s_v_madak_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float %b) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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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; GCN-DAG: v_mov_b32_e32 [[VK:v[0-9]+]], 0x41200000
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; GCN-DAG: buffer_load_dword [[VA:v[0-9]+]]
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; GCN-NOT: v_madak_f32
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; GCN: v_mac_f32_e32 [[VK]], [[SB]], [[VA]]
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define void @v_s_madak_f32(float addrspace(1)* noalias %out, float %a, float addrspace(1)* noalias %in.b) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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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; GCN: v_mac_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}}
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define void @s_s_madak_f32(float addrspace(1)* %out, float %a, float %b) nounwind {
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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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; GCN: buffer_load_dword [[VA:v[0-9]+]]
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; GCN: buffer_load_dword [[VB:v[0-9]+]]
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; GCN: v_mad_f32 {{v[0-9]+}}, |{{v[0-9]+}}|, {{v[0-9]+}}, {{[sv][0-9]+}}
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; GCN: s_endpgm
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define void @no_madak_src0_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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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; GCN: buffer_load_dword [[VA:v[0-9]+]]
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; GCN: buffer_load_dword [[VB:v[0-9]+]]
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; GCN: v_mad_f32 {{v[0-9]+}}, {{v[0-9]+}}, |{{v[0-9]+}}|, {{[sv][0-9]+}}
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; GCN: s_endpgm
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define void @no_madak_src1_modifier_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in.a, float addrspace(1)* noalias %in.b) nounwind {
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%tid = tail call i32 @llvm.r600.read.tidig.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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