; LLVM IR from yudi-matsuzake/libgenerics :: src (vector)

; 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.vector_t = type { ptr, i64, i64, i64 }

; Function Attrs: nounwind uwtable
declare dso_local i32 @vector_resize_buffer(ptr noundef, i64 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @vector_set_elem_at(ptr noundef, i64 noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @vector_add(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %2
  store i32 1, ptr %3, align 4
  br label %50

12:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.vector_t, ptr %13, i32 0, i32 2
  %15 = load i64, ptr %14, align 8, !tbaa !9
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.vector_t, ptr %16, i32 0, i32 3
  %18 = load i64, ptr %17, align 8, !tbaa !12
  %19 = udiv i64 %15, %18
  store i64 %19, ptr %6, align 8, !tbaa !13
  %20 = load i64, ptr %6, align 8, !tbaa !13
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.vector_t, ptr %21, i32 0, i32 1
  %23 = load i64, ptr %22, align 8, !tbaa !14
  %24 = add i64 %23, 1
  %25 = icmp ult i64 %20, %24
  br i1 %25, label %26, label %33

26:                                               ; preds = %12
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.vector_t, ptr %28, i32 0, i32 1
  %30 = load i64, ptr %29, align 8, !tbaa !14
  %31 = add i64 %30, 1
  %32 = call i32 @vector_resize_buffer(ptr noundef %27, i64 noundef %31)
  br label %33

33:                                               ; preds = %26, %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.vector_t, ptr %35, i32 0, i32 1
  %37 = load i64, ptr %36, align 8, !tbaa !14
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = call i32 @vector_set_elem_at(ptr noundef %34, i64 noundef %37, ptr noundef %38)
  store i32 %39, ptr %7, align 4, !tbaa !15
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.vector_t, ptr %40, i32 0, i32 1
  %42 = load i64, ptr %41, align 8, !tbaa !14
  %43 = add i64 %42, 1
  store i64 %43, ptr %41, align 8, !tbaa !14
  %44 = load i32, ptr %7, align 4, !tbaa !15
  %45 = icmp ne i32 %44, 0
  br i1 %45, label %46, label %48

46:                                               ; preds = %33
  %47 = load i32, ptr %7, align 4, !tbaa !15
  store i32 %47, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %49

48:                                               ; preds = %33
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %49

49:                                               ; preds = %48, %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  br label %50

50:                                               ; preds = %49, %11
  %51 = load i32, ptr %3, align 4
  ret i32 %51
}

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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/C++ TBAA"}
!9 = !{!10, !11, i64 16}
!10 = !{!"vector_t", !6, i64 0, !11, i64 8, !11, i64 16, !11, i64 24}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !11, i64 24}
!13 = !{!11, !11, i64 0}
!14 = !{!10, !11, i64 8}
!15 = !{!16, !16, i64 0}
!16 = !{!"int", !7, i64 0}


; 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: nounwind uwtable
declare dso_local i32 @vector_resize_buffer(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @vector_set_elem_at(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @vector_add(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %20, label %3

3:                                                ; preds = %2
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 24
  %7 = load i64, ptr %6, align 8, !tbaa !11
  %8 = udiv i64 %5, %7
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = load i64, ptr %9, align 8, !tbaa !12
  %11 = add i64 %10, 1
  %12 = icmp ult i64 %8, %11
  br i1 %12, label %13, label %15

13:                                               ; preds = %3
  %14 = tail call i32 @vector_resize_buffer(ptr noundef nonnull %0, i64 noundef %11)
  %.pre = load i64, ptr %9, align 8, !tbaa !12
  br label %15

15:                                               ; preds = %13, %3
  %16 = phi i64 [ %.pre, %13 ], [ %10, %3 ]
  %17 = tail call i32 @vector_set_elem_at(ptr noundef nonnull %0, i64 noundef %16, ptr noundef %1)
  %18 = load i64, ptr %9, align 8, !tbaa !12
  %19 = add i64 %18, 1
  store i64 %19, ptr %9, align 8, !tbaa !12
  br label %20

20:                                               ; preds = %2, %15
  %.1 = phi i32 [ %17, %15 ], [ 1, %2 ]
  ret i32 %.1
}

attributes #0 = { 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" }

!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, !10, i64 16}
!6 = !{!"vector_t", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 24}
!12 = !{!6, !10, i64 8}


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