; LLVM IR from ravireddy07/cpp-book :: src/Code-Chef (DEVARRAY)

; 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 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 1000000000, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %31, %0
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = add nsw i64 %10, -1
  store i64 %11, ptr %2, align 8, !tbaa !5
  %12 = icmp ne i64 %10, 0
  br i1 %12, label %13, label %33

13:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %6)
  %15 = load i64, ptr %6, align 8, !tbaa !5
  %16 = load i64, ptr %4, align 8, !tbaa !5
  %17 = icmp slt i64 %15, %16
  br i1 %17, label %18, label %20

18:                                               ; preds = %13
  %19 = load i64, ptr %6, align 8, !tbaa !5
  br label %22

20:                                               ; preds = %13
  %21 = load i64, ptr %4, align 8, !tbaa !5
  br label %22

22:                                               ; preds = %20, %18
  %23 = phi i64 [ %19, %18 ], [ %21, %20 ]
  store i64 %23, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %6, align 8, !tbaa !5
  %25 = load i64, ptr %5, align 8, !tbaa !5
  %26 = icmp sgt i64 %24, %25
  br i1 %26, label %27, label %29

27:                                               ; preds = %22
  %28 = load i64, ptr %6, align 8, !tbaa !5
  br label %31

29:                                               ; preds = %22
  %30 = load i64, ptr %5, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %29, %27
  %32 = phi i64 [ %28, %27 ], [ %30, %29 ]
  store i64 %32, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %9, !llvm.loop !9

33:                                               ; preds = %9
  br label %34

34:                                               ; preds = %47, %33
  %35 = load i64, ptr %3, align 8, !tbaa !5
  %36 = add nsw i64 %35, -1
  store i64 %36, ptr %3, align 8, !tbaa !5
  %37 = icmp ne i64 %35, 0
  br i1 %37, label %38, label %52

38:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %39 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.2, ptr noundef %7)
  %40 = load i64, ptr %4, align 8, !tbaa !5
  %41 = load i64, ptr %7, align 8, !tbaa !5
  %42 = icmp sle i64 %40, %41
  br i1 %42, label %43, label %47

43:                                               ; preds = %38
  %44 = load i64, ptr %7, align 8, !tbaa !5
  %45 = load i64, ptr %5, align 8, !tbaa !5
  %46 = icmp sle i64 %44, %45
  br label %47

47:                                               ; preds = %43, %38
  %48 = phi i1 [ false, %38 ], [ %46, %43 ]
  %49 = zext i1 %48 to i64
  %50 = select i1 %48, ptr @.str.3, ptr @.str.4
  %51 = call i32 @puts(ptr noundef %50)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %34, !llvm.loop !11

52:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 8, 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
}

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

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

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

declare i32 @puts(ptr noundef) #2

attributes #0 = { mustprogress norecurse 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; 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 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %1, align 8, !tbaa !5
  %.not8 = icmp eq i64 %6, 0
  br i1 %.not8, label %.preheader, label %.lr.ph

.preheader:                                       ; preds = %.lr.ph, %0
  %.06.lcssa = phi i64 [ 1000000000, %0 ], [ %12, %.lr.ph ]
  %.0.lcssa = phi i64 [ 0, %0 ], [ %13, %.lr.ph ]
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = add nsw i64 %8, -1
  store i64 %9, ptr %2, align 8, !tbaa !5
  %.not712 = icmp eq i64 %8, 0
  br i1 %.not712, label %._crit_edge, label %.lr.ph13

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.010 = phi i64 [ %13, %.lr.ph ], [ 0, %0 ]
  %.069 = phi i64 [ %12, %.lr.ph ], [ 1000000000, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3)
  %11 = load i64, ptr %3, align 8
  %12 = call i64 @llvm.smin.i64(i64 %11, i64 %.069)
  %13 = call i64 @llvm.smax.i64(i64 %11, i64 %.010)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %14 = load i64, ptr %1, align 8, !tbaa !5
  %15 = add nsw i64 %14, -1
  store i64 %15, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %14, 0
  br i1 %.not, label %.preheader, label %.lr.ph, !llvm.loop !9

.lr.ph13:                                         ; preds = %.preheader, %.lr.ph13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.2, ptr noundef nonnull %4)
  %17 = load i64, ptr %4, align 8
  %18 = icmp sle i64 %.06.lcssa, %17
  %19 = icmp sle i64 %17, %.0.lcssa
  %20 = select i1 %18, i1 %19, i1 false
  %21 = select i1 %20, ptr @.str.3, ptr @.str.4
  %22 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %21)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  %23 = load i64, ptr %2, align 8, !tbaa !5
  %24 = add nsw i64 %23, -1
  store i64 %24, ptr %2, align 8, !tbaa !5
  %.not7 = icmp eq i64 %23, 0
  br i1 %.not7, label %._crit_edge, label %.lr.ph13, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph13, %.preheader
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  ret i32 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: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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

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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smin.i64(i64, i64) #3

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.i64(i64, i64) #3

attributes #0 = { mustprogress nofree norecurse 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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