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https://github.com/c64scene-ar/llvm-6502.git
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1f996fa36b
This is equivalent to the AMDGPUTargetMachine now, but it is the starting point for separating R600 and GCN functionality into separate targets. It is recommened that users start using the gcn triple for GCN-based GPUs, because using the r600 triple for these GPUs will be deprecated in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225277 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
3.5 KiB
LLVM
70 lines
3.5 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs -mattr=+load-store-opt -enable-misched < %s | FileCheck -check-prefix=SI --check-prefix=CHECK %s
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; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs -mattr=+load-store-opt -enable-misched < %s | FileCheck -check-prefix=CI --check-prefix=CHECK %s
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declare i32 @llvm.r600.read.tidig.x() #0
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declare void @llvm.AMDGPU.barrier.local() #1
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; Function Attrs: nounwind
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; CHECK-LABEL: {{^}}signed_ds_offset_addressing_loop:
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; CHECK: BB0_1:
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; CHECK: v_add_i32_e32 [[VADDR:v[0-9]+]],
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; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR]]
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; SI-DAG: v_add_i32_e32 [[VADDR4:v[0-9]+]], 4, [[VADDR]]
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; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR4]]
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; SI-DAG: v_add_i32_e32 [[VADDR0x80:v[0-9]+]], 0x80, [[VADDR]]
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; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR0x80]]
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; SI-DAG: v_add_i32_e32 [[VADDR0x84:v[0-9]+]], 0x84, [[VADDR]]
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; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR0x84]]
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; SI-DAG: v_add_i32_e32 [[VADDR0x100:v[0-9]+]], 0x100, [[VADDR]]
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; SI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR0x100]]
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; CI-DAG: ds_read2_b32 v{{\[[0-9]+:[0-9]+\]}}, [[VADDR]] offset0:0 offset1:1
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; CI-DAG: ds_read2_b32 v{{\[[0-9]+:[0-9]+\]}}, [[VADDR]] offset0:32 offset1:33
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; CI-DAG: ds_read_b32 v{{[0-9]+}}, [[VADDR]] offset:256
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; CHECK: s_endpgm
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define void @signed_ds_offset_addressing_loop(float addrspace(1)* noalias nocapture %out, float addrspace(3)* noalias nocapture readonly %lptr, i32 %n) #2 {
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entry:
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%x.i = tail call i32 @llvm.r600.read.tidig.x() #0
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%mul = shl nsw i32 %x.i, 1
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%sum.03 = phi float [ 0.000000e+00, %entry ], [ %add13, %for.body ]
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%offset.02 = phi i32 [ %mul, %entry ], [ %add14, %for.body ]
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%k.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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tail call void @llvm.AMDGPU.barrier.local() #1
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%arrayidx = getelementptr inbounds float addrspace(3)* %lptr, i32 %offset.02
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%tmp = load float addrspace(3)* %arrayidx, align 4
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%add1 = add nsw i32 %offset.02, 1
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%arrayidx2 = getelementptr inbounds float addrspace(3)* %lptr, i32 %add1
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%tmp1 = load float addrspace(3)* %arrayidx2, align 4
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%add3 = add nsw i32 %offset.02, 32
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%arrayidx4 = getelementptr inbounds float addrspace(3)* %lptr, i32 %add3
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%tmp2 = load float addrspace(3)* %arrayidx4, align 4
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%add5 = add nsw i32 %offset.02, 33
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%arrayidx6 = getelementptr inbounds float addrspace(3)* %lptr, i32 %add5
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%tmp3 = load float addrspace(3)* %arrayidx6, align 4
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%add7 = add nsw i32 %offset.02, 64
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%arrayidx8 = getelementptr inbounds float addrspace(3)* %lptr, i32 %add7
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%tmp4 = load float addrspace(3)* %arrayidx8, align 4
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%add9 = fadd float %tmp, %tmp1
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%add10 = fadd float %add9, %tmp2
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%add11 = fadd float %add10, %tmp3
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%add12 = fadd float %add11, %tmp4
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%add13 = fadd float %sum.03, %add12
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%inc = add nsw i32 %k.01, 1
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%add14 = add nsw i32 %offset.02, 97
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%exitcond = icmp eq i32 %inc, 8
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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%tmp5 = sext i32 %x.i to i64
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%arrayidx15 = getelementptr inbounds float addrspace(1)* %out, i64 %tmp5
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store float %add13, float addrspace(1)* %arrayidx15, align 4
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ret void
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}
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attributes #0 = { nounwind readnone }
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attributes #1 = { noduplicate nounwind }
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attributes #2 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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