; LLVM IR from Dimandragon/non-parametric-dsp :: alglib-cpp/src/alglibinternal.ll (ZN11alglib_impl13nisaddelementEPNS_5nisetElPNS_8ae_stateE)

; 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"

%"struct.alglib_impl::niset" = type { i64, i64, %"struct.alglib_impl::ae_vector", %"struct.alglib_impl::ae_vector", i64 }
%"struct.alglib_impl::ae_vector" = type { i64, i64, i8, %"struct.alglib_impl::ae_dyn_block", %union.anon }
%"struct.alglib_impl::ae_dyn_block" = type { ptr, ptr, ptr, ptr }
%union.anon = type { ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN11alglib_impl13nisaddelementEPNS_5nisetElPNS_8ae_stateE(ptr noundef %0, i64 noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %"struct.alglib_impl::niset", ptr %9, i32 0, i32 3
  %11 = getelementptr inbounds %"struct.alglib_impl::ae_vector", ptr %10, i32 0, i32 4
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = load i64, ptr %5, align 8, !tbaa !9
  %14 = getelementptr inbounds i64, ptr %12, i64 %13
  %15 = load i64, ptr %14, align 8, !tbaa !9
  %16 = icmp sge i64 %15, 0
  br i1 %16, label %17, label %18

17:                                               ; preds = %3
  store i32 1, ptr %8, align 4
  br label %40

18:                                               ; preds = %3
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %"struct.alglib_impl::niset", ptr %19, i32 0, i32 1
  %21 = load i64, ptr %20, align 8, !tbaa !12
  store i64 %21, ptr %7, align 8, !tbaa !9
  %22 = load i64, ptr %7, align 8, !tbaa !9
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %"struct.alglib_impl::niset", ptr %23, i32 0, i32 3
  %25 = getelementptr inbounds %"struct.alglib_impl::ae_vector", ptr %24, i32 0, i32 4
  %26 = load ptr, ptr %25, align 8, !tbaa !11
  %27 = load i64, ptr %5, align 8, !tbaa !9
  %28 = getelementptr inbounds i64, ptr %26, i64 %27
  store i64 %22, ptr %28, align 8, !tbaa !9
  %29 = load i64, ptr %5, align 8, !tbaa !9
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %"struct.alglib_impl::niset", ptr %30, i32 0, i32 2
  %32 = getelementptr inbounds %"struct.alglib_impl::ae_vector", ptr %31, i32 0, i32 4
  %33 = load ptr, ptr %32, align 8, !tbaa !11
  %34 = load i64, ptr %7, align 8, !tbaa !9
  %35 = getelementptr inbounds i64, ptr %33, i64 %34
  store i64 %29, ptr %35, align 8, !tbaa !9
  %36 = load i64, ptr %7, align 8, !tbaa !9
  %37 = add nsw i64 %36, 1
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = getelementptr inbounds %"struct.alglib_impl::niset", ptr %38, i32 0, i32 1
  store i64 %37, ptr %39, align 8, !tbaa !12
  store i32 0, ptr %8, align 4
  br label %40

40:                                               ; preds = %18, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  %41 = load i32, ptr %8, align 4
  switch i32 %41, label %43 [
    i32 0, label %42
    i32 1, label %42
  ]

42:                                               ; preds = %40, %40
  ret void

43:                                               ; preds = %40
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !10, i64 8}
!13 = !{!"_ZTSN11alglib_impl5nisetE", !10, i64 0, !10, i64 8, !14, i64 16, !14, i64 80, !10, i64 144}
!14 = !{!"_ZTSN11alglib_impl9ae_vectorE", !10, i64 0, !10, i64 8, !15, i64 16, !16, i64 24, !7, i64 56}
!15 = !{!"bool", !7, i64 0}
!16 = !{!"_ZTSN11alglib_impl12ae_dyn_blockE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}


; 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN11alglib_impl13nisaddelementEPNS_5nisetElPNS_8ae_stateE(ptr nocapture noundef %0, i64 noundef %1, ptr nocapture noundef readnone %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 136
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i64, ptr %5, i64 %1
  %7 = load i64, ptr %6, align 8, !tbaa !8
  %8 = icmp sgt i64 %7, -1
  br i1 %8, label %16, label %9

9:                                                ; preds = %3
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load i64, ptr %10, align 8, !tbaa !10
  store i64 %11, ptr %6, align 8, !tbaa !8
  %12 = getelementptr inbounds i8, ptr %0, i64 72
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = getelementptr inbounds i64, ptr %13, i64 %11
  store i64 %1, ptr %14, align 8, !tbaa !8
  %15 = add nsw i64 %11, 1
  store i64 %15, ptr %10, align 8, !tbaa !10
  br label %16

16:                                               ; preds = %3, %9
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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" }

!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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long", !6, i64 0}
!10 = !{!11, !9, i64 8}
!11 = !{!"_ZTSN11alglib_impl5nisetE", !9, i64 0, !9, i64 8, !12, i64 16, !12, i64 80, !9, i64 144}
!12 = !{!"_ZTSN11alglib_impl9ae_vectorE", !9, i64 0, !9, i64 8, !13, i64 16, !14, i64 24, !6, i64 56}
!13 = !{!"bool", !6, i64 0}
!14 = !{!"_ZTSN11alglib_impl12ae_dyn_blockE", !15, i64 0, !15, i64 8, !15, i64 16, !15, i64 24}
!15 = !{!"any pointer", !6, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass