; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/World Cup 2016/World Cup Round 2/Problem F/F.ll (Z9decomposeii)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"struct.std::pair" = type { i32, i32 }

@par = external dso_local global [131072 x i32], align 16
@erased = external dso_local global [131072 x i32], align 16
@depth = external dso_local global [131072 x i32], align 16
@g = external dso_local global [131072 x %"class.std::vector"], align 16
@cg = external dso_local global [131072 x %"class.std::vector.0"], align 16
@totalNodes = external dso_local global 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: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7getSizeii(i32 noundef, i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z11getCentroidii(i32 noundef, i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11getDistanceiixi(i32 noundef, i32 noundef, i64 noundef, i32 noundef) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_Z9decomposeii(i32 noundef %0, i32 noundef %1) #3 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  store i32 0, ptr @totalNodes, align 4, !tbaa !5
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z7getSizeii(i32 noundef %9, i32 noundef %10)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = load i32, ptr %3, align 4, !tbaa !5
  %13 = call noundef i32 @_Z11getCentroidii(i32 noundef %11, i32 noundef %12)
  store i32 %13, ptr %5, align 4, !tbaa !5
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = icmp eq i32 %14, -1
  br i1 %15, label %16, label %24

16:                                               ; preds = %2
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [131072 x i32], ptr @par, i64 0, i64 %19
  store i32 %17, ptr %20, align 4, !tbaa !5
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %22
  store i32 0, ptr %23, align 4, !tbaa !5
  br label %40

24:                                               ; preds = %2
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = add nsw i32 %28, 1
  %30 = load i32, ptr %5, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %31
  store i32 %29, ptr %32, align 4, !tbaa !5
  %33 = load i32, ptr %4, align 4, !tbaa !5
  %34 = load i32, ptr %5, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [131072 x i32], ptr @par, i64 0, i64 %35
  store i32 %33, ptr %36, align 4, !tbaa !5
  %37 = load i32, ptr %4, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [131072 x %"class.std::vector.0"], ptr @cg, i64 0, i64 %38
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %39, ptr noundef nonnull align 4 dereferenceable(4) %5)
  br label %40

40:                                               ; preds = %24, %16
  %41 = load i32, ptr %5, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [131072 x i32], ptr @erased, i64 0, i64 %42
  store i32 1, ptr %43, align 4, !tbaa !5
  %44 = load i32, ptr %5, align 4, !tbaa !5
  %45 = load i32, ptr %5, align 4, !tbaa !5
  %46 = load i32, ptr %5, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %47
  %49 = load i32, ptr %48, align 4, !tbaa !5
  call void @_Z11getDistanceiixi(i32 noundef %44, i32 noundef %45, i64 noundef 0, i32 noundef %49)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %50 = load i32, ptr %5, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @g, i64 0, i64 %51
  %53 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %52) #4
  %54 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %53, ptr %54, align 8
  br label %55

55:                                               ; preds = %77, %40
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %56 = load i32, ptr %5, align 4, !tbaa !5
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @g, i64 0, i64 %57
  %59 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %58) #4
  %60 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %59, ptr %60, align 8
  %61 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br i1 %61, label %63, label %62

62:                                               ; preds = %55
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %80

63:                                               ; preds = %55
  %64 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  %65 = getelementptr inbounds %"struct.std::pair", ptr %64, i32 0, i32 0
  %66 = load i32, ptr %65, align 4, !tbaa !9
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds [131072 x i32], ptr @erased, i64 0, i64 %67
  %69 = load i32, ptr %68, align 4, !tbaa !5
  %70 = icmp ne i32 %69, 0
  br i1 %70, label %76, label %71

71:                                               ; preds = %63
  %72 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  %73 = getelementptr inbounds %"struct.std::pair", ptr %72, i32 0, i32 0
  %74 = load i32, ptr %73, align 4, !tbaa !9
  %75 = load i32, ptr %5, align 4, !tbaa !5
  call void @_Z9decomposeii(i32 noundef %74, i32 noundef %75)
  br label %76

76:                                               ; preds = %71, %63
  br label %77

77:                                               ; preds = %76
  %78 = call ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %6, i32 noundef 0) #4
  %79 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %78, ptr %79, align 8
  br label %55, !llvm.loop !11

80:                                               ; preds = %62
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { inlinehint 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 = { 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 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!11 = distinct !{!11, !12}
!12 = !{!"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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@par = external dso_local local_unnamed_addr global [131072 x i32], align 16
@erased = external dso_local local_unnamed_addr global [131072 x i32], align 16
@depth = external dso_local local_unnamed_addr global [131072 x i32], align 16
@g = external dso_local global [131072 x %"class.std::vector"], align 16
@cg = external dso_local global [131072 x %"class.std::vector.0"], align 16
@totalNodes = external dso_local local_unnamed_addr global 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 nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; 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 nounwind uwtable
declare dso_local noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7getSizeii(i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z11getCentroidii(i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11getDistanceiixi(i32 noundef, i32 noundef, i64 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
define dso_local void @_Z9decomposeii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #3 {
  %3 = alloca i32, align 4
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store i32 0, ptr @totalNodes, align 4, !tbaa !5
  tail call void @_Z7getSizeii(i32 noundef %0, i32 noundef %0)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  %6 = tail call noundef i32 @_Z11getCentroidii(i32 noundef %0, i32 noundef %0)
  store i32 %6, ptr %3, align 4, !tbaa !5
  %7 = icmp eq i32 %1, -1
  br i1 %7, label %8, label %12

8:                                                ; preds = %2
  %9 = sext i32 %6 to i64
  %10 = getelementptr inbounds [131072 x i32], ptr @par, i64 0, i64 %9
  store i32 %6, ptr %10, align 4, !tbaa !5
  %11 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %9
  store i32 0, ptr %11, align 4, !tbaa !5
  br label %21

12:                                               ; preds = %2
  %13 = sext i32 %1 to i64
  %14 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %13
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = add nsw i32 %15, 1
  %17 = sext i32 %6 to i64
  %18 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %17
  store i32 %16, ptr %18, align 4, !tbaa !5
  %19 = getelementptr inbounds [131072 x i32], ptr @par, i64 0, i64 %17
  store i32 %1, ptr %19, align 4, !tbaa !5
  %20 = getelementptr inbounds [131072 x %"class.std::vector.0"], ptr @cg, i64 0, i64 %13
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %20, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %.pre = load i32, ptr %3, align 4, !tbaa !5
  %.phi.trans.insert = sext i32 %.pre to i64
  %.phi.trans.insert8 = getelementptr inbounds [131072 x i32], ptr @depth, i64 0, i64 %.phi.trans.insert
  %.pre9 = load i32, ptr %.phi.trans.insert8, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %12, %8
  %.pre-phi = phi i64 [ %.phi.trans.insert, %12 ], [ %9, %8 ]
  %22 = phi i32 [ %.pre9, %12 ], [ 0, %8 ]
  %23 = phi i32 [ %.pre, %12 ], [ %6, %8 ]
  %24 = getelementptr inbounds [131072 x i32], ptr @erased, i64 0, i64 %.pre-phi
  store i32 1, ptr %24, align 4, !tbaa !5
  call void @_Z11getDistanceiixi(i32 noundef %23, i32 noundef %23, i64 noundef 0, i32 noundef %22)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @g, i64 0, i64 %26
  %28 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %27) #4
  store ptr %28, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @g, i64 0, i64 %30
  %32 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %31) #4
  store ptr %32, ptr %5, align 8
  %33 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br i1 %33, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %43, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  ret void

.lr.ph:                                           ; preds = %21, %43
  %34 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %35 = load i32, ptr %34, align 4, !tbaa !9
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [131072 x i32], ptr @erased, i64 0, i64 %36
  %38 = load i32, ptr %37, align 4, !tbaa !5
  %.not = icmp eq i32 %38, 0
  br i1 %.not, label %39, label %43

39:                                               ; preds = %.lr.ph
  %40 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %41 = load i32, ptr %40, align 4, !tbaa !9
  %42 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z9decomposeii(i32 noundef %41, i32 noundef %42)
  br label %43

43:                                               ; preds = %.lr.ph, %39
  %44 = call ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %4, i32 noundef 0) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %45 = load i32, ptr %3, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [131072 x %"class.std::vector"], ptr @g, i64 0, i64 %46
  %48 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %47) #4
  store ptr %48, ptr %5, align 8
  %49 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br i1 %49, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { inlinehint 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 = { 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 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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