; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2012-13/Jan 2013/13 Jan G3.ll (Z5queryii)

; 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<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, 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 }
%"struct.std::pair" = type { i32, i32 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@stor = external dso_local global [1048576 x %"class.std::set"], align 16
@_ZL3MOD = external hidden constant i32, align 4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z5queryii(i32 noundef %0, i32 noundef %1) #1 {
  %3 = alloca %"struct.std::pair", align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS3_S4_EEEbE4typeELb1EEERKiS8_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) @_ZL3MOD, ptr noundef nonnull align 4 dereferenceable(4) @_ZL3MOD)
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = add nsw i32 %8, 524288
  store i32 %9, ptr %4, align 4, !tbaa !5
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = add nsw i32 %10, 524288
  store i32 %11, ptr %5, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %61, %2
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = load i32, ptr %5, align 4, !tbaa !5
  %15 = icmp slt i32 %13, %14
  br i1 %15, label %16, label %66

16:                                               ; preds = %12
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = and i32 %17, 1
  %19 = icmp ne i32 %18, 0
  br i1 %19, label %20, label %38

20:                                               ; preds = %16
  %21 = load i32, ptr %4, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [1048576 x %"class.std::set"], ptr @stor, i64 0, i64 %22
  %24 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %23) #4
  %25 = icmp ne i64 %24, 0
  br i1 %25, label %26, label %35

26:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [1048576 x %"class.std::set"], ptr @stor, i64 0, i64 %28
  %30 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %29) #4
  %31 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %6, i32 0, i32 0
  store ptr %30, ptr %31, align 8
  %32 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  %33 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %32)
  %34 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %33)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %35

35:                                               ; preds = %26, %20
  %36 = load i32, ptr %4, align 4, !tbaa !5
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %4, align 4, !tbaa !5
  br label %38

38:                                               ; preds = %35, %16
  %39 = load i32, ptr %5, align 4, !tbaa !5
  %40 = and i32 %39, 1
  %41 = icmp ne i32 %40, 0
  br i1 %41, label %42, label %60

42:                                               ; preds = %38
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = add nsw i32 %43, -1
  store i32 %44, ptr %5, align 4, !tbaa !5
  %45 = load i32, ptr %5, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [1048576 x %"class.std::set"], ptr @stor, i64 0, i64 %46
  %48 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %47) #4
  %49 = icmp ne i64 %48, 0
  br i1 %49, label %50, label %59

50:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %51 = load i32, ptr %5, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [1048576 x %"class.std::set"], ptr @stor, i64 0, i64 %52
  %54 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %53) #4
  %55 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %7, i32 0, i32 0
  store ptr %54, ptr %55, align 8
  %56 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  %57 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %56)
  %58 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %57)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br label %59

59:                                               ; preds = %50, %42
  br label %60

60:                                               ; preds = %59, %38
  br label %61

61:                                               ; preds = %60
  %62 = load i32, ptr %4, align 4, !tbaa !5
  %63 = ashr i32 %62, 1
  store i32 %63, ptr %4, align 4, !tbaa !5
  %64 = load i32, ptr %5, align 4, !tbaa !5
  %65 = ashr i32 %64, 1
  store i32 %65, ptr %5, align 4, !tbaa !5
  br label %12, !llvm.loop !9

66:                                               ; preds = %12
  %67 = load i64, ptr %3, align 4
  ret i64 %67
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS3_S4_EEEbE4typeELb1EEERKiS8_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress 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 #3 = { inlinehint 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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"

%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, 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 }
%"struct.std::pair" = type { i32, i32 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@stor = external dso_local global [1048576 x %"class.std::set"], align 16
@_ZL3MOD = external hidden constant i32, align 4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z5queryii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS3_S4_EEEbE4typeELb1EEERKiS8_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) @_ZL3MOD, ptr noundef nonnull align 4 dereferenceable(4) @_ZL3MOD)
  %6 = icmp slt i32 %0, %1
  br i1 %6, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %7 = add nsw i32 %1, 524288
  %8 = add nsw i32 %0, 524288
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %33
  %.020 = phi i32 [ %35, %33 ], [ %7, %.lr.ph.preheader ]
  %.01419 = phi i32 [ %34, %33 ], [ %8, %.lr.ph.preheader ]
  %9 = and i32 %.01419, 1
  %.not = icmp eq i32 %9, 0
  br i1 %.not, label %21, label %10

10:                                               ; preds = %.lr.ph
  %11 = sext i32 %.01419 to i64
  %12 = getelementptr inbounds [1048576 x %"class.std::set"], ptr @stor, i64 0, i64 %11
  %13 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %12) #4
  %.not16 = icmp eq i64 %13, 0
  br i1 %.not16, label %19, label %14

14:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %15 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %12) #4
  store ptr %15, ptr %4, align 8
  %16 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %17 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %16)
  %18 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %17)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  br label %19

19:                                               ; preds = %14, %10
  %20 = add nsw i32 %.01419, 1
  br label %21

21:                                               ; preds = %19, %.lr.ph
  %.115 = phi i32 [ %20, %19 ], [ %.01419, %.lr.ph ]
  %22 = and i32 %.020, 1
  %.not17 = icmp eq i32 %22, 0
  br i1 %.not17, label %33, label %23

23:                                               ; preds = %21
  %24 = add nsw i32 %.020, -1
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [1048576 x %"class.std::set"], ptr @stor, i64 0, i64 %25
  %27 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %26) #4
  %.not18 = icmp eq i64 %27, 0
  br i1 %.not18, label %33, label %28

28:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %29 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %26) #4
  store ptr %29, ptr %5, align 8
  %30 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %31 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %30)
  %32 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(8) %31)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br label %33

33:                                               ; preds = %21, %28, %23
  %.1 = phi i32 [ %24, %28 ], [ %24, %23 ], [ %.020, %21 ]
  %34 = ashr i32 %.115, 1
  %35 = ashr i32 %.1, 1
  %36 = icmp slt i32 %34, %35
  br i1 %36, label %.lr.ph, label %._crit_edge, !llvm.loop !5

._crit_edge:                                      ; preds = %33, %2
  %37 = load i64, ptr %3, align 8
  ret i64 %37
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS3_S4_EEEbE4typeELb1EEERKiS8_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress 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 #3 = { inlinehint 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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass