; LLVM IR from AdarshGaur/Competitive-Programming :: SPOJ/COINS - Bytelandian gold coins.ll (Z5solvex)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_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 }

@dp = external dso_local global %"class.std::map", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z5solvex(i64 noundef %0) #0 {
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  store i64 %0, ptr %3, align 8, !tbaa !5
  %5 = load i64, ptr %3, align 8, !tbaa !5
  %6 = icmp eq i64 %5, 0
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  store i64 0, ptr %2, align 8
  br label %39

8:                                                ; preds = %1
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %10 = load i64, ptr %9, align 8, !tbaa !5
  %11 = icmp ne i64 %10, 0
  br i1 %11, label %12, label %15

12:                                               ; preds = %8
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %14 = load i64, ptr %13, align 8, !tbaa !5
  store i64 %14, ptr %2, align 8
  br label %39

15:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %16 = load i64, ptr %3, align 8, !tbaa !5
  %17 = sdiv i64 %16, 2
  %18 = call noundef i64 @_Z5solvex(i64 noundef %17)
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = sdiv i64 %19, 3
  %21 = call noundef i64 @_Z5solvex(i64 noundef %20)
  %22 = add nsw i64 %18, %21
  %23 = load i64, ptr %3, align 8, !tbaa !5
  %24 = sdiv i64 %23, 4
  %25 = call noundef i64 @_Z5solvex(i64 noundef %24)
  %26 = add nsw i64 %22, %25
  store i64 %26, ptr %4, align 8, !tbaa !5
  %27 = load i64, ptr %4, align 8, !tbaa !5
  %28 = load i64, ptr %3, align 8, !tbaa !5
  %29 = icmp sgt i64 %27, %28
  br i1 %29, label %30, label %33

30:                                               ; preds = %15
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %3)
  store i64 %31, ptr %32, align 8, !tbaa !5
  br label %36

33:                                               ; preds = %15
  %34 = load i64, ptr %3, align 8, !tbaa !5
  %35 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %3)
  store i64 %34, ptr %35, align 8, !tbaa !5
  br label %36

36:                                               ; preds = %33, %30
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %38 = load i64, ptr %37, align 8, !tbaa !5
  store i64 %38, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  br label %39

39:                                               ; preds = %36, %12, %7
  %40 = load i64, ptr %2, align 8
  ret i64 %40
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; 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

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 = !{!"long long", !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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_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 }

@dp = external dso_local global %"class.std::map", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z5solvex(i64 noundef %0) local_unnamed_addr #0 {
  %2 = alloca i64, align 8
  store i64 %0, ptr %2, align 8, !tbaa !5
  %3 = icmp eq i64 %0, 0
  br i1 %3, label %23, label %4

4:                                                ; preds = %1
  %5 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %.not = icmp eq i64 %6, 0
  br i1 %.not, label %7, label %.sink.split

7:                                                ; preds = %4
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = sdiv i64 %8, 2
  %10 = call noundef i64 @_Z5solvex(i64 noundef %9)
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = sdiv i64 %11, 3
  %13 = call noundef i64 @_Z5solvex(i64 noundef %12)
  %14 = add nsw i64 %13, %10
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = sdiv i64 %15, 4
  %17 = call noundef i64 @_Z5solvex(i64 noundef %16)
  %18 = add nsw i64 %14, %17
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %. = call i64 @llvm.smax.i64(i64 %18, i64 %19)
  store i64 %., ptr %20, align 8, !tbaa !5
  br label %.sink.split

.sink.split:                                      ; preds = %4, %7
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @dp, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %22 = load i64, ptr %21, align 8, !tbaa !5
  br label %23

23:                                               ; preds = %.sink.split, %1
  %.0 = phi i64 [ 0, %1 ], [ %22, %.sink.split ]
  ret i64 %.0
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

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

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


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