; LLVM IR from freddiev4/dailyprogrammerchallenges :: Easy Challenges/Challenge 0022 Easy/solutions (solution)

; 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"

@__const.main.arr1 = external hidden unnamed_addr constant [5 x i32], align 16
@__const.main.arr2 = external hidden unnamed_addr constant [4 x i32], align 16

; Function Attrs: nounwind uwtable
declare dso_local void @add_element(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 void @free_all() #0

; Function Attrs: nounwind uwtable
declare dso_local void @print_list() #0

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca [5 x i32], align 16
  %7 = alloca [4 x i32], align 16
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 20, ptr %6) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %6, ptr align 16 @__const.main.arr1, i64 20, i1 false)
  call void @llvm.lifetime.start.p0(i64 16, ptr %7) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %7, ptr align 16 @__const.main.arr2, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 5, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 4, ptr %10, align 4, !tbaa !5
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %20, %2
  %12 = load i32, ptr %8, align 4, !tbaa !5
  %13 = load i32, ptr %9, align 4, !tbaa !5
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %15, label %23

15:                                               ; preds = %11
  %16 = load i32, ptr %8, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [5 x i32], ptr %6, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  call void @add_element(i32 noundef %19, i32 noundef 1)
  br label %20

20:                                               ; preds = %15
  %21 = load i32, ptr %8, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %8, align 4, !tbaa !5
  br label %11, !llvm.loop !11

23:                                               ; preds = %11
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %24

24:                                               ; preds = %33, %23
  %25 = load i32, ptr %8, align 4, !tbaa !5
  %26 = load i32, ptr %10, align 4, !tbaa !5
  %27 = icmp slt i32 %25, %26
  br i1 %27, label %28, label %36

28:                                               ; preds = %24
  %29 = load i32, ptr %8, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [4 x i32], ptr %7, i64 0, i64 %30
  %32 = load i32, ptr %31, align 4, !tbaa !5
  call void @add_element(i32 noundef %32, i32 noundef 1)
  br label %33

33:                                               ; preds = %28
  %34 = load i32, ptr %8, align 4, !tbaa !5
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %8, align 4, !tbaa !5
  br label %24, !llvm.loop !13

36:                                               ; preds = %24
  call void @print_list()
  call void @free_all()
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 20, ptr %6) #3
  ret i32 0
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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"

@__const.main.arr1 = external hidden unnamed_addr constant [5 x i32], align 16
@__const.main.arr2 = external hidden unnamed_addr constant [4 x i32], align 16

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

; Function Attrs: nounwind uwtable
declare dso_local void @free_all() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @print_list() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 {
.preheader.preheader:
  %2 = load i32, ptr @__const.main.arr1, align 16, !tbaa !5
  tail call void @add_element(i32 noundef %2, i32 noundef 1)
  %3 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.arr1, i64 4), align 4, !tbaa !5
  tail call void @add_element(i32 noundef %3, i32 noundef 1)
  %4 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.arr1, i64 8), align 8, !tbaa !5
  tail call void @add_element(i32 noundef %4, i32 noundef 1)
  %5 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.arr1, i64 12), align 4, !tbaa !5
  tail call void @add_element(i32 noundef %5, i32 noundef 1)
  %6 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.arr1, i64 16), align 16, !tbaa !5
  tail call void @add_element(i32 noundef %6, i32 noundef 1)
  %7 = load i32, ptr @__const.main.arr2, align 16, !tbaa !5
  tail call void @add_element(i32 noundef %7, i32 noundef 1)
  %8 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.arr2, i64 4), align 4, !tbaa !5
  tail call void @add_element(i32 noundef %8, i32 noundef 1)
  %9 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.arr2, i64 8), align 8, !tbaa !5
  tail call void @add_element(i32 noundef %9, i32 noundef 1)
  %10 = load i32, ptr getelementptr inbounds (i8, ptr @__const.main.arr2, i64 12), align 4, !tbaa !5
  tail call void @add_element(i32 noundef %10, i32 noundef 1)
  tail call void @print_list()
  tail call void @free_all()
  ret i32 0
}

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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass