; LLVM IR from LingDong-/skeleton-tracing :: swig (trace_skeleton)

; 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._point_t = type { i32, i32, ptr }
%struct._polyline_t = type { ptr, ptr, ptr, ptr, i32 }

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

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

; Function Attrs: nounwind uwtable
define dso_local void @add_point_to_polyline(ptr noundef %0, i32 noundef %1, i32 noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %8 = call noalias ptr @malloc(i64 noundef 16) #4
  store ptr %8, ptr %7, align 8, !tbaa !5
  %9 = load i32, ptr %5, align 4, !tbaa !9
  %10 = load ptr, ptr %7, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct._point_t, ptr %10, i32 0, i32 0
  store i32 %9, ptr %11, align 8, !tbaa !11
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = load ptr, ptr %7, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct._point_t, ptr %13, i32 0, i32 1
  store i32 %12, ptr %14, align 4, !tbaa !13
  %15 = load ptr, ptr %7, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct._point_t, ptr %15, i32 0, i32 2
  store ptr null, ptr %16, align 8, !tbaa !14
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct._polyline_t, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !15
  %20 = icmp ne ptr %19, null
  br i1 %20, label %28, label %21

21:                                               ; preds = %3
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct._polyline_t, ptr %23, i32 0, i32 0
  store ptr %22, ptr %24, align 8, !tbaa !15
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct._polyline_t, ptr %26, i32 0, i32 1
  store ptr %25, ptr %27, align 8, !tbaa !17
  br label %37

28:                                               ; preds = %3
  %29 = load ptr, ptr %7, align 8, !tbaa !5
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct._polyline_t, ptr %30, i32 0, i32 1
  %32 = load ptr, ptr %31, align 8, !tbaa !17
  %33 = getelementptr inbounds %struct._point_t, ptr %32, i32 0, i32 2
  store ptr %29, ptr %33, align 8, !tbaa !14
  %34 = load ptr, ptr %7, align 8, !tbaa !5
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct._polyline_t, ptr %35, i32 0, i32 1
  store ptr %34, ptr %36, align 8, !tbaa !17
  br label %37

37:                                               ; preds = %28, %21
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct._polyline_t, ptr %38, i32 0, i32 4
  %40 = load i32, ptr %39, align 8, !tbaa !18
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %39, align 8, !tbaa !18
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(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 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 #3 = { nounwind }
attributes #4 = { nounwind allocsize(0) }

!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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_point_t", !10, i64 0, !10, i64 4, !6, i64 8}
!13 = !{!12, !10, i64 4}
!14 = !{!12, !6, i64 8}
!15 = !{!16, !6, i64 0}
!16 = !{!"_polyline_t", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !10, i64 32}
!17 = !{!16, !6, i64 8}
!18 = !{!16, !10, 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"

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: readwrite) uwtable
define dso_local void @add_point_to_polyline(ptr nocapture noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = tail call noalias dereferenceable_or_null(16) ptr @malloc(i64 noundef 16) #2
  store i32 %1, ptr %4, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 4
  store i32 %2, ptr %5, align 4, !tbaa !11
  %6 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr null, ptr %6, align 8, !tbaa !12
  %7 = load ptr, ptr %0, align 8, !tbaa !13
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %8, label %10

8:                                                ; preds = %3
  store ptr %4, ptr %0, align 8, !tbaa !13
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  br label %14

10:                                               ; preds = %3
  %11 = getelementptr inbounds i8, ptr %0, i64 8
  %12 = load ptr, ptr %11, align 8, !tbaa !15
  %13 = getelementptr inbounds i8, ptr %12, i64 8
  store ptr %4, ptr %13, align 8, !tbaa !12
  br label %14

14:                                               ; preds = %10, %8
  %.sink = phi ptr [ %11, %10 ], [ %9, %8 ]
  store ptr %4, ptr %.sink, align 8, !tbaa !15
  %15 = getelementptr inbounds i8, ptr %0, i64 32
  %16 = load i32, ptr %15, align 8, !tbaa !16
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %15, align 8, !tbaa !16
  ret void
}

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nofree nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: readwrite) 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 allocsize(0) }

!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, !7, i64 0}
!6 = !{!"_point_t", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !10, i64 8}
!13 = !{!14, !10, i64 0}
!14 = !{!"_polyline_t", !10, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !7, i64 32}
!15 = !{!14, !10, i64 8}
!16 = !{!14, !7, i64 32}


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