; LLVM IR from Ayon-SSP/The-SDE-Prep :: 1]_Data Structures/2]_Linked List/Linked List Problems (Polynomialadditon)

; 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"

@.str.4 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.14 = external hidden unnamed_addr constant [24 x i8], align 1

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

; Function Attrs: nounwind uwtable
declare dso_local void @display(ptr noundef) #0

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  store ptr null, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store ptr null, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store ptr null, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 1, ptr %8, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %51, %0
  %10 = load i32, ptr %8, align 4, !tbaa !9
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %12, label %52

12:                                               ; preds = %9
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  %14 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  %15 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  %16 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.8, ptr noundef %5)
  %18 = load i32, ptr %5, align 4, !tbaa !9
  switch i32 %18, label %49 [
    i32 1, label %19
    i32 2, label %28
    i32 3, label %37
    i32 4, label %48
  ]

19:                                               ; preds = %12
  %20 = call i32 (ptr, ...) @printf(ptr noundef @.str.9)
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.8, ptr noundef %6)
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str.10)
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.8, ptr noundef %7)
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = load i32, ptr %6, align 4, !tbaa !9
  %26 = load i32, ptr %7, align 4, !tbaa !9
  %27 = call ptr @create(ptr noundef %24, i32 noundef %25, i32 noundef %26)
  store ptr %27, ptr %2, align 8, !tbaa !5
  br label %51

28:                                               ; preds = %12
  %29 = call i32 (ptr, ...) @printf(ptr noundef @.str.9)
  %30 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.8, ptr noundef %6)
  %31 = call i32 (ptr, ...) @printf(ptr noundef @.str.10)
  %32 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.8, ptr noundef %7)
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = load i32, ptr %6, align 4, !tbaa !9
  %35 = load i32, ptr %7, align 4, !tbaa !9
  %36 = call ptr @create(ptr noundef %33, i32 noundef %34, i32 noundef %35)
  store ptr %36, ptr %3, align 8, !tbaa !5
  br label %51

37:                                               ; preds = %12
  store ptr null, ptr %4, align 8, !tbaa !5
  %38 = load ptr, ptr %2, align 8, !tbaa !5
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = call ptr @polyAdd(ptr noundef %38, ptr noundef %39, ptr noundef %40)
  store ptr %41, ptr %4, align 8, !tbaa !5
  %42 = call i32 (ptr, ...) @printf(ptr noundef @.str.11)
  %43 = load ptr, ptr %2, align 8, !tbaa !5
  call void @display(ptr noundef %43)
  %44 = call i32 (ptr, ...) @printf(ptr noundef @.str.12)
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  call void @display(ptr noundef %45)
  %46 = call i32 (ptr, ...) @printf(ptr noundef @.str.13)
  %47 = load ptr, ptr %4, align 8, !tbaa !5
  call void @display(ptr noundef %47)
  br label %51

48:                                               ; preds = %12
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %51

49:                                               ; preds = %12
  %50 = call i32 (ptr, ...) @printf(ptr noundef @.str.14)
  br label %51

51:                                               ; preds = %49, %48, %37, %28, %19
  br label %9, !llvm.loop !11

52:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

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 = { "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 }

!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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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"

@.str.4 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.14 = external hidden unnamed_addr constant [24 x i8], align 1

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

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

; Function Attrs: mustprogress 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 ptr @polyAdd(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @display(ptr noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  br label %.outer

.outer:                                           ; preds = %19, %0
  %.0813.ph = phi ptr [ %26, %19 ], [ null, %0 ]
  %.01012.ph = phi ptr [ %.01012.ph18, %19 ], [ null, %0 ]
  br label %.outer17

.outer17:                                         ; preds = %.outer, %11
  %.01012.ph18 = phi ptr [ %.01012.ph, %.outer ], [ %18, %11 ]
  br label %4

4:                                                ; preds = %.backedge, %.outer17
  %5 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  %6 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  %7 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7)
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.8, ptr noundef nonnull %1)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  switch i32 %10, label %32 [
    i32 1, label %11
    i32 2, label %19
    i32 3, label %27
    i32 4, label %34
  ]

11:                                               ; preds = %4
  %12 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.9)
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.8, ptr noundef nonnull %2)
  %14 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.10)
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.8, ptr noundef nonnull %3)
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = load i32, ptr %3, align 4, !tbaa !5
  %18 = call ptr @create(ptr noundef %.01012.ph18, i32 noundef %16, i32 noundef %17)
  br label %.outer17, !llvm.loop !9

19:                                               ; preds = %4
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.9)
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.8, ptr noundef nonnull %2)
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.10)
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.8, ptr noundef nonnull %3)
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = call ptr @create(ptr noundef %.0813.ph, i32 noundef %24, i32 noundef %25)
  br label %.outer, !llvm.loop !9

27:                                               ; preds = %4
  %28 = call ptr @polyAdd(ptr noundef %.01012.ph18, ptr noundef %.0813.ph, ptr noundef null)
  %29 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.11)
  call void @display(ptr noundef %.01012.ph18)
  %30 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.12)
  call void @display(ptr noundef %.0813.ph)
  %31 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.13)
  call void @display(ptr noundef %28)
  br label %.backedge

32:                                               ; preds = %4
  %33 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.14)
  br label %.backedge

.backedge:                                        ; preds = %32, %27
  br label %4, !llvm.loop !9

34:                                               ; preds = %4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "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 }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass