; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/346 Division 2/Problem F/F.ll (Z5mergeii)

; 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"

%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@comp_numbers = external dso_local global %"class.std::set", align 8
@p = external dso_local global [1002001 x i32], align 16
@rnk = external dso_local global [1002001 x i32], align 16
@sz = external dso_local global [1002001 x i32], align 16

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z4findi(i32 noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5mergeii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = call noundef i32 @_Z4findi(i32 noundef %8)
  store i32 %9, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = call noundef i32 @_Z4findi(i32 noundef %10)
  store i32 %11, ptr %6, align 4, !tbaa !5
  %12 = load i32, ptr %5, align 4, !tbaa !5
  %13 = load i32, ptr %6, align 4, !tbaa !5
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %15, label %16

15:                                               ; preds = %2
  store i32 1, ptr %7, align 4
  br label %76

16:                                               ; preds = %2
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %22
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = icmp sgt i32 %20, %24
  br i1 %25, label %26, label %41

26:                                               ; preds = %16
  %27 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) @comp_numbers, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = load i32, ptr %6, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [1002001 x i32], ptr @p, i64 0, i64 %30
  store i32 %28, ptr %31, align 4, !tbaa !5
  %32 = load i32, ptr %6, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [1002001 x i32], ptr @sz, i64 0, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = load i32, ptr %5, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [1002001 x i32], ptr @sz, i64 0, i64 %37
  %39 = load i32, ptr %38, align 4, !tbaa !5
  %40 = add nsw i32 %39, %35
  store i32 %40, ptr %38, align 4, !tbaa !5
  br label %56

41:                                               ; preds = %16
  %42 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) @comp_numbers, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %43 = load i32, ptr %6, align 4, !tbaa !5
  %44 = load i32, ptr %5, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [1002001 x i32], ptr @p, i64 0, i64 %45
  store i32 %43, ptr %46, align 4, !tbaa !5
  %47 = load i32, ptr %5, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds [1002001 x i32], ptr @sz, i64 0, i64 %48
  %50 = load i32, ptr %49, align 4, !tbaa !5
  %51 = load i32, ptr %6, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [1002001 x i32], ptr @sz, i64 0, i64 %52
  %54 = load i32, ptr %53, align 4, !tbaa !5
  %55 = add nsw i32 %54, %50
  store i32 %55, ptr %53, align 4, !tbaa !5
  br label %56

56:                                               ; preds = %41, %26
  %57 = load i32, ptr %5, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %58
  %60 = load i32, ptr %59, align 4, !tbaa !5
  %61 = load i32, ptr %6, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %62
  %64 = load i32, ptr %63, align 4, !tbaa !5
  %65 = icmp eq i32 %60, %64
  br i1 %65, label %66, label %75

66:                                               ; preds = %56
  %67 = load i32, ptr %6, align 4, !tbaa !5
  %68 = sext i32 %67 to i64
  %69 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %68
  %70 = load i32, ptr %69, align 4, !tbaa !5
  %71 = add nsw i32 %70, 1
  %72 = load i32, ptr %6, align 4, !tbaa !5
  %73 = sext i32 %72 to i64
  %74 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %73
  store i32 %71, ptr %74, align 4, !tbaa !5
  br label %75

75:                                               ; preds = %66, %56
  store i32 1, ptr %7, align 4
  br label %76

76:                                               ; preds = %75, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret void
}

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

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

attributes #0 = { mustprogress 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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"

%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@comp_numbers = external dso_local global %"class.std::set", align 8
@p = external dso_local local_unnamed_addr global [1002001 x i32], align 16
@rnk = external dso_local local_unnamed_addr global [1002001 x i32], align 16
@sz = external dso_local local_unnamed_addr global [1002001 x i32], align 16

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z4findi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5mergeii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #2
  %5 = tail call noundef i32 @_Z4findi(i32 noundef %0)
  store i32 %5, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #2
  %6 = tail call noundef i32 @_Z4findi(i32 noundef %1)
  store i32 %6, ptr %4, align 4, !tbaa !5
  %7 = icmp eq i32 %5, %6
  br i1 %7, label %38, label %8

8:                                                ; preds = %2
  %9 = sext i32 %5 to i64
  %10 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = sext i32 %6 to i64
  %13 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = icmp sgt i32 %11, %14
  br i1 %15, label %16, label %20

16:                                               ; preds = %8
  %17 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) @comp_numbers, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %18 = load i32, ptr %4, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  br label %24

20:                                               ; preds = %8
  %21 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) @comp_numbers, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %22 = load i32, ptr %3, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  br label %24

24:                                               ; preds = %20, %16
  %.sink11 = phi i64 [ %23, %20 ], [ %19, %16 ]
  %.sink = phi i32 [ %6, %20 ], [ %5, %16 ]
  %.sink8 = phi i64 [ %12, %20 ], [ %9, %16 ]
  %.pre-phi4 = phi i64 [ %12, %20 ], [ %19, %16 ]
  %.pre-phi = phi i64 [ %23, %20 ], [ %9, %16 ]
  %25 = getelementptr inbounds [1002001 x i32], ptr @p, i64 0, i64 %.sink11
  store i32 %.sink, ptr %25, align 4, !tbaa !5
  %26 = getelementptr inbounds [1002001 x i32], ptr @sz, i64 0, i64 %.sink11
  %27 = load i32, ptr %26, align 4, !tbaa !5
  %28 = getelementptr inbounds [1002001 x i32], ptr @sz, i64 0, i64 %.sink8
  %29 = load i32, ptr %28, align 4, !tbaa !5
  %30 = add nsw i32 %29, %27
  store i32 %30, ptr %28, align 4, !tbaa !5
  %31 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %.pre-phi
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %33 = getelementptr inbounds [1002001 x i32], ptr @rnk, i64 0, i64 %.pre-phi4
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = icmp eq i32 %32, %34
  br i1 %35, label %36, label %38

36:                                               ; preds = %24
  %37 = add nsw i32 %32, 1
  store i32 %37, ptr %33, align 4, !tbaa !5
  br label %38

38:                                               ; preds = %24, %36, %2
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #2
  ret void
}

; 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 uwtable
declare dso_local noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

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

attributes #0 = { mustprogress 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 = { 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++ TBAA"}


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