; LLVM IR from PaddlePaddle/Paddle :: paddle/fluid/distributed/ps/table/graph (graph_weighted_sampler)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.paddle::distributed::WeightedSampler" = type { %"class.paddle::distributed::Sampler", ptr, ptr, float, i32, i32, ptr }
%"class.paddle::distributed::Sampler" = type { ptr }

@_ZTVN6paddle11distributed15WeightedSamplerE = external dso_local unnamed_addr constant { [7 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN6paddle11distributed15WeightedSamplerC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  call void @_ZN6paddle11distributed7SamplerC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  store ptr getelementptr inbounds inrange(-16, 40) ({ [7 x ptr] }, ptr @_ZTVN6paddle11distributed15WeightedSamplerE, i32 0, i32 0, i32 2), ptr %3, align 8, !tbaa !9
  %4 = getelementptr inbounds %"class.paddle::distributed::WeightedSampler", ptr %3, i32 0, i32 1
  store ptr null, ptr %4, align 8, !tbaa !11
  %5 = getelementptr inbounds %"class.paddle::distributed::WeightedSampler", ptr %3, i32 0, i32 2
  store ptr null, ptr %5, align 8, !tbaa !16
  %6 = getelementptr inbounds %"class.paddle::distributed::WeightedSampler", ptr %3, i32 0, i32 6
  store ptr null, ptr %6, align 8, !tbaa !17
  %7 = getelementptr inbounds %"class.paddle::distributed::WeightedSampler", ptr %3, i32 0, i32 3
  store float 0.000000e+00, ptr %7, align 8, !tbaa !18
  %8 = getelementptr inbounds %"class.paddle::distributed::WeightedSampler", ptr %3, i32 0, i32 4
  store i32 0, ptr %8, align 4, !tbaa !19
  %9 = getelementptr inbounds %"class.paddle::distributed::WeightedSampler", ptr %3, i32 0, i32 5
  store i32 0, ptr %9, align 8, !tbaa !20
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN6paddle11distributed7SamplerC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"_ZTSN6paddle11distributed15WeightedSamplerE", !13, i64 0, !6, i64 8, !6, i64 16, !14, i64 24, !15, i64 28, !15, i64 32, !6, i64 40}
!13 = !{!"_ZTSN6paddle11distributed7SamplerE"}
!14 = !{!"float", !7, i64 0}
!15 = !{!"int", !7, i64 0}
!16 = !{!12, !6, i64 16}
!17 = !{!12, !6, i64 40}
!18 = !{!12, !14, i64 24}
!19 = !{!12, !15, i64 28}
!20 = !{!12, !15, i64 32}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@_ZTVN6paddle11distributed15WeightedSamplerE = external dso_local unnamed_addr constant { [7 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN6paddle11distributed15WeightedSamplerC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %0) unnamed_addr #0 align 2 {
  tail call void @_ZN6paddle11distributed7SamplerC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #3
  store ptr getelementptr inbounds inrange(-16, 40) (i8, ptr @_ZTVN6paddle11distributed15WeightedSamplerE, i64 16), ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = getelementptr inbounds i8, ptr %0, i64 40
  store ptr null, ptr %3, align 8, !tbaa !8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(28) %2, i8 0, i64 28, i1 false)
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN6paddle11distributed7SamplerC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !11, i64 40}
!9 = !{!"_ZTSN6paddle11distributed15WeightedSamplerE", !10, i64 0, !11, i64 8, !11, i64 16, !13, i64 24, !14, i64 28, !14, i64 32, !11, i64 40}
!10 = !{!"_ZTSN6paddle11distributed7SamplerE"}
!11 = !{!"any pointer", !12, i64 0}
!12 = !{!"omnipotent char", !7, i64 0}
!13 = !{!"float", !12, i64 0}
!14 = !{!"int", !12, i64 0}


; Effective O3 passes: InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass