; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/Codeagon 2017/Problem B (B)

; 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<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::pair" = type { i64, i64 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@v = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca %"struct.std::pair", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %2)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %29, %0
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  br label %32

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %5)
  %23 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %22, ptr noundef nonnull align 8 dereferenceable(8) %6)
  call void @llvm.lifetime.start.p0(i64 16, ptr %7) #6
  %24 = call { i64, i64 } @_ZSt9make_pairIRxS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %5)
  %25 = getelementptr inbounds { i64, i64 }, ptr %7, i32 0, i32 0
  %26 = extractvalue { i64, i64 } %24, 0
  store i64 %26, ptr %25, align 8
  %27 = getelementptr inbounds { i64, i64 }, ptr %7, i32 0, i32 1
  %28 = extractvalue { i64, i64 } %24, 1
  store i64 %28, ptr %27, align 8
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 8 dereferenceable(16) %7)
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  br label %29

29:                                               ; preds = %21
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %4, align 4, !tbaa !5
  br label %16, !llvm.loop !9

32:                                               ; preds = %20
  %33 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %34 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %33, ptr %34, align 8
  %35 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %36 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %35, ptr %36, align 8
  %37 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8
  %39 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %40 = load ptr, ptr %39, align 8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %38, ptr %40)
  %41 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %42 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %41, ptr %42, align 8
  %43 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %44 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %43, ptr %44, align 8
  %45 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  %46 = load ptr, ptr %45, align 8
  %47 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %48 = load ptr, ptr %47, align 8
  call void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %46, ptr %48)
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  store i64 0, ptr %12, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #6
  store i32 0, ptr %13, align 4, !tbaa !5
  br label %49

49:                                               ; preds = %102, %32
  %50 = load i32, ptr %13, align 4, !tbaa !5
  %51 = load i32, ptr %3, align 4, !tbaa !5
  %52 = icmp slt i32 %50, %51
  br i1 %52, label %53, label %56

53:                                               ; preds = %49
  %54 = load i64, ptr %2, align 8, !tbaa !11
  %55 = icmp sgt i64 %54, 0
  br label %56

56:                                               ; preds = %53, %49
  %57 = phi i1 [ false, %49 ], [ %55, %53 ]
  br i1 %57, label %59, label %58

58:                                               ; preds = %56
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  br label %105

59:                                               ; preds = %56
  %60 = load i32, ptr %13, align 4, !tbaa !5
  %61 = sext i32 %60 to i64
  %62 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %61) #6
  %63 = getelementptr inbounds %"struct.std::pair", ptr %62, i32 0, i32 1
  %64 = load i64, ptr %63, align 8, !tbaa !13
  %65 = load i64, ptr %2, align 8, !tbaa !11
  %66 = icmp sle i64 %64, %65
  br i1 %66, label %67, label %88

67:                                               ; preds = %59
  %68 = load i32, ptr %13, align 4, !tbaa !5
  %69 = sext i32 %68 to i64
  %70 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %69) #6
  %71 = getelementptr inbounds %"struct.std::pair", ptr %70, i32 0, i32 1
  %72 = load i64, ptr %71, align 8, !tbaa !13
  %73 = load i32, ptr %13, align 4, !tbaa !5
  %74 = sext i32 %73 to i64
  %75 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %74) #6
  %76 = getelementptr inbounds %"struct.std::pair", ptr %75, i32 0, i32 0
  %77 = load i64, ptr %76, align 8, !tbaa !15
  %78 = mul nsw i64 %72, %77
  %79 = load i64, ptr %12, align 8, !tbaa !11
  %80 = add nsw i64 %79, %78
  store i64 %80, ptr %12, align 8, !tbaa !11
  %81 = load i32, ptr %13, align 4, !tbaa !5
  %82 = sext i32 %81 to i64
  %83 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %82) #6
  %84 = getelementptr inbounds %"struct.std::pair", ptr %83, i32 0, i32 1
  %85 = load i64, ptr %84, align 8, !tbaa !13
  %86 = load i64, ptr %2, align 8, !tbaa !11
  %87 = sub nsw i64 %86, %85
  store i64 %87, ptr %2, align 8, !tbaa !11
  br label %101

88:                                               ; preds = %59
  %89 = load i64, ptr %2, align 8, !tbaa !11
  %90 = load i32, ptr %13, align 4, !tbaa !5
  %91 = sext i32 %90 to i64
  %92 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %91) #6
  %93 = getelementptr inbounds %"struct.std::pair", ptr %92, i32 0, i32 0
  %94 = load i64, ptr %93, align 8, !tbaa !15
  %95 = mul nsw i64 %89, %94
  %96 = load i64, ptr %12, align 8, !tbaa !11
  %97 = add nsw i64 %96, %95
  store i64 %97, ptr %12, align 8, !tbaa !11
  %98 = load i64, ptr %2, align 8, !tbaa !11
  %99 = load i64, ptr %2, align 8, !tbaa !11
  %100 = sub nsw i64 %99, %98
  store i64 %100, ptr %2, align 8, !tbaa !11
  br label %101

101:                                              ; preds = %88, %67
  br label %102

102:                                              ; preds = %101
  %103 = load i32, ptr %13, align 4, !tbaa !5
  %104 = add nsw i32 %103, 1
  store i32 %104, ptr %13, align 4, !tbaa !5
  br label %49, !llvm.loop !16

105:                                              ; preds = %58
  %106 = load i64, ptr %12, align 8, !tbaa !11
  %107 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %106)
  %108 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %107, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  ret i32 0
}

; 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 noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i64 } @_ZSt9make_pairIRxS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #5 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

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 = { 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 #3 = { "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 = { 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 #5 = { 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 #6 = { 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"}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = !{!14, !12, i64 8}
!14 = !{!"_ZTSSt4pairIxxE", !12, i64 0, !12, i64 8}
!15 = !{!14, !12, i64 0}
!16 = distinct !{!16, !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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::pair" = type { i64, i64 }

@v = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i32, align 4
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca %"struct.std::pair", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %6 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  %7 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0
  %10 = getelementptr inbounds i8, ptr %5, i64 8
  br label %20

._crit_edge:                                      ; preds = %20, %0
  %11 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %12 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %11, ptr %12)
  %13 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %14 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  call void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %13, ptr %14)
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 0
  %17 = load i64, ptr %1, align 8
  %18 = icmp sgt i64 %17, 0
  %19 = select i1 %16, i1 %18, i1 false
  br i1 %19, label %.lr.ph22, label %._crit_edge23

20:                                               ; preds = %.lr.ph, %20
  %.01618 = phi i32 [ 0, %.lr.ph ], [ %26, %20 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %21, ptr noundef nonnull align 8 dereferenceable(8) %4)
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #6
  %23 = call { i64, i64 } @_ZSt9make_pairIRxS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %24 = extractvalue { i64, i64 } %23, 0
  store i64 %24, ptr %5, align 8
  %25 = extractvalue { i64, i64 } %23, 1
  store i64 %25, ptr %10, align 8
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 8 dereferenceable(16) %5)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  %26 = add nuw nsw i32 %.01618, 1
  %27 = load i32, ptr %2, align 4, !tbaa !5
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %20, label %._crit_edge, !llvm.loop !9

._crit_edge23:                                    ; preds = %50, %._crit_edge
  %.015.lcssa = phi i64 [ 0, %._crit_edge ], [ %.1, %50 ]
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.015.lcssa)
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %29, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  ret i32 0

.lr.ph22:                                         ; preds = %._crit_edge, %50
  %indvars.iv = phi i64 [ %indvars.iv.next, %50 ], [ 0, %._crit_edge ]
  %.01519 = phi i64 [ %.1, %50 ], [ 0, %._crit_edge ]
  %31 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %indvars.iv) #6
  %32 = getelementptr inbounds i8, ptr %31, i64 8
  %33 = load i64, ptr %32, align 8, !tbaa !11
  %34 = load i64, ptr %1, align 8, !tbaa !14
  %.not = icmp sgt i64 %33, %34
  %35 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %indvars.iv) #6
  br i1 %.not, label %47, label %36

36:                                               ; preds = %.lr.ph22
  %37 = getelementptr inbounds i8, ptr %35, i64 8
  %38 = load i64, ptr %37, align 8, !tbaa !11
  %39 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %indvars.iv) #6
  %40 = load i64, ptr %39, align 8, !tbaa !15
  %41 = mul nsw i64 %40, %38
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %indvars.iv) #6
  %43 = getelementptr inbounds i8, ptr %42, i64 8
  %44 = load i64, ptr %43, align 8, !tbaa !11
  %45 = load i64, ptr %1, align 8, !tbaa !14
  %46 = sub nsw i64 %45, %44
  br label %50

47:                                               ; preds = %.lr.ph22
  %48 = load i64, ptr %35, align 8, !tbaa !15
  %49 = mul nsw i64 %48, %34
  br label %50

50:                                               ; preds = %36, %47
  %storemerge = phi i64 [ 0, %47 ], [ %46, %36 ]
  %.pn = phi i64 [ %49, %47 ], [ %41, %36 ]
  %.1 = add nsw i64 %.pn, %.01519
  store i64 %storemerge, ptr %1, align 8, !tbaa !14
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %51 = load i32, ptr %2, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = icmp slt i64 %indvars.iv.next, %52
  %54 = icmp sgt i64 %storemerge, 0
  %55 = select i1 %53, i1 %54, i1 false
  br i1 %55, label %.lr.ph22, label %._crit_edge23, !llvm.loop !16
}

; 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 noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i64 } @_ZSt9make_pairIRxS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) 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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #2 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = { 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 #5 = { 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 #6 = { 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"}
!11 = !{!12, !13, i64 8}
!12 = !{!"_ZTSSt4pairIxxE", !13, i64 0, !13, i64 8}
!13 = !{!"long long", !7, i64 0}
!14 = !{!13, !13, i64 0}
!15 = !{!12, !13, i64 0}
!16 = distinct !{!16, !10}


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