; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/cp (Activity_Selection)

; 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::basic_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"struct.std::pair" = type { i32, i32 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [18 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [22 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z7compareSt4pairIiiES0_(i64, i64) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #9
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %12 = 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)
  br label %13

13:                                               ; preds = %105, %0
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = add nsw i32 %14, -1
  store i32 %15, ptr %2, align 4, !tbaa !5
  %16 = icmp ne i32 %14, 0
  br i1 %16, label %17, label %106

17:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #9
  store i32 1, ptr %4, align 4, !tbaa !5
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %19 = 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 8, ptr %5) #9
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %21, i64 8)
  %23 = extractvalue { i64, i1 } %22, 1
  %24 = extractvalue { i64, i1 } %22, 0
  %25 = select i1 %23, i64 -1, i64 %24
  %26 = call noalias noundef nonnull ptr @_Znam(i64 noundef %25) #10
  %27 = icmp eq i64 %21, 0
  br i1 %27, label %35, label %28

28:                                               ; preds = %17
  %29 = getelementptr inbounds %"struct.std::pair", ptr %26, i64 %21
  br label %30

30:                                               ; preds = %32, %28
  %31 = phi ptr [ %26, %28 ], [ %33, %32 ]
  invoke void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %31)
          to label %32 unwind label %43

32:                                               ; preds = %30
  %33 = getelementptr inbounds %"struct.std::pair", ptr %31, i64 1
  %34 = icmp eq ptr %33, %29
  br i1 %34, label %35, label %30

35:                                               ; preds = %32, %17
  store ptr %26, ptr %5, align 8, !tbaa !9
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.2)
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %36, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #9
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %38

38:                                               ; preds = %60, %35
  %39 = load i32, ptr %8, align 4, !tbaa !5
  %40 = load i32, ptr %3, align 4, !tbaa !5
  %41 = icmp slt i32 %39, %40
  br i1 %41, label %47, label %42

42:                                               ; preds = %38
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #9
  br label %63

43:                                               ; preds = %30
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %6, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %7, align 4
  call void @_ZdaPvm(ptr noundef %26, i64 noundef %25) #11
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #9
  br label %107

47:                                               ; preds = %38
  %48 = load ptr, ptr %5, align 8, !tbaa !9
  %49 = load i32, ptr %8, align 4, !tbaa !5
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds %"struct.std::pair", ptr %48, i64 %50
  %52 = getelementptr inbounds %"struct.std::pair", ptr %51, i32 0, i32 0
  %53 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %52)
  %54 = load ptr, ptr %5, align 8, !tbaa !9
  %55 = load i32, ptr %8, align 4, !tbaa !5
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds %"struct.std::pair", ptr %54, i64 %56
  %58 = getelementptr inbounds %"struct.std::pair", ptr %57, i32 0, i32 1
  %59 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %53, ptr noundef nonnull align 4 dereferenceable(4) %58)
  br label %60

60:                                               ; preds = %47
  %61 = load i32, ptr %8, align 4, !tbaa !5
  %62 = add nsw i32 %61, 1
  store i32 %62, ptr %8, align 4, !tbaa !5
  br label %38, !llvm.loop !11

63:                                               ; preds = %42
  %64 = load ptr, ptr %5, align 8, !tbaa !9
  %65 = load ptr, ptr %5, align 8, !tbaa !9
  %66 = load i32, ptr %3, align 4, !tbaa !5
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds %"struct.std::pair", ptr %65, i64 %67
  call void @_ZSt4sortIPSt4pairIiiEPFbS1_S1_EEvT_S5_T0_(ptr noundef %64, ptr noundef %68, ptr noundef @_Z7compareSt4pairIiiES0_)
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #9
  store i32 0, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #9
  store i32 1, ptr %10, align 4, !tbaa !5
  br label %69

69:                                               ; preds = %93, %63
  %70 = load i32, ptr %10, align 4, !tbaa !5
  %71 = load i32, ptr %3, align 4, !tbaa !5
  %72 = icmp slt i32 %70, %71
  br i1 %72, label %74, label %73

73:                                               ; preds = %69
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #9
  br label %96

74:                                               ; preds = %69
  %75 = load ptr, ptr %5, align 8, !tbaa !9
  %76 = load i32, ptr %9, align 4, !tbaa !5
  %77 = sext i32 %76 to i64
  %78 = getelementptr inbounds %"struct.std::pair", ptr %75, i64 %77
  %79 = getelementptr inbounds %"struct.std::pair", ptr %78, i32 0, i32 1
  %80 = load i32, ptr %79, align 4, !tbaa !13
  %81 = load ptr, ptr %5, align 8, !tbaa !9
  %82 = load i32, ptr %10, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = getelementptr inbounds %"struct.std::pair", ptr %81, i64 %83
  %85 = getelementptr inbounds %"struct.std::pair", ptr %84, i32 0, i32 0
  %86 = load i32, ptr %85, align 4, !tbaa !15
  %87 = icmp sle i32 %80, %86
  br i1 %87, label %88, label %92

88:                                               ; preds = %74
  %89 = load i32, ptr %4, align 4, !tbaa !5
  %90 = add nsw i32 %89, 1
  store i32 %90, ptr %4, align 4, !tbaa !5
  %91 = load i32, ptr %10, align 4, !tbaa !5
  store i32 %91, ptr %9, align 4, !tbaa !5
  br label %92

92:                                               ; preds = %88, %74
  br label %93

93:                                               ; preds = %92
  %94 = load i32, ptr %10, align 4, !tbaa !5
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr %10, align 4, !tbaa !5
  br label %69, !llvm.loop !16

96:                                               ; preds = %73
  %97 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.3)
  %98 = load i32, ptr %4, align 4, !tbaa !5
  %99 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %97, i32 noundef %98)
  %100 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %99, ptr noundef @.str.4)
  %101 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %100, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %102 = load ptr, ptr %5, align 8, !tbaa !9
  %103 = icmp eq ptr %102, null
  br i1 %103, label %105, label %104

104:                                              ; preds = %96
  call void @_ZdaPv(ptr noundef %102) #11
  br label %105

105:                                              ; preds = %104, %96
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #9
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #9
  br label %13, !llvm.loop !17

106:                                              ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #9
  ret i32 0

107:                                              ; preds = %43
  %108 = load ptr, ptr %6, align 8
  %109 = load i32, ptr %7, align 4
  %110 = insertvalue { ptr, i32 } poison, ptr %108, 0
  %111 = insertvalue { ptr, i32 } %110, i32 %109, 1
  resume { ptr, i32 } %111
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3

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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #5

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPvm(ptr noundef, i64 noundef) #7

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #8 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)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEPFbS1_S1_EEvT_S5_T0_(ptr noundef, ptr noundef, ptr noundef) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #7

attributes #0 = { 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 #1 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { nobuiltin allocsize(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 #7 = { nobuiltin nounwind "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 #8 = { 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 #9 = { nounwind }
attributes #10 = { builtin allocsize(0) }
attributes #11 = { builtin 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, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !6, i64 4}
!14 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!15 = !{!14, !6, i64 0}
!16 = distinct !{!16, !12}
!17 = distinct !{!17, !12}


; 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::basic_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"struct.std::pair" = type { i32, i32 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [18 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [22 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z7compareSt4pairIiiES0_(i64, i64) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  %3 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  %4 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = add nsw i32 %5, -1
  store i32 %6, ptr %1, align 4, !tbaa !5
  %.not33 = icmp eq i32 %5, 0
  br i1 %.not33, label %._crit_edge36, label %.lr.ph35

.lr.ph35:                                         ; preds = %0, %._crit_edge31
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  %7 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  %8 = 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)
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = icmp slt i32 %9, 0
  %12 = shl nsw i64 %10, 3
  %13 = select i1 %11, i64 -1, i64 %12
  %14 = call noalias noundef nonnull ptr @_Znam(i64 noundef %13) #9
  %15 = icmp eq i32 %9, 0
  br i1 %15, label %.loopexit, label %16

16:                                               ; preds = %.lr.ph35
  %17 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %10
  br label %18

18:                                               ; preds = %18, %16
  %19 = phi ptr [ %14, %16 ], [ %20, %18 ]
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %19)
  %20 = getelementptr inbounds i8, ptr %19, i64 8
  %21 = icmp eq ptr %20, %17
  br i1 %21, label %.loopexit, label %18

.loopexit:                                        ; preds = %18, %.lr.ph35
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.2)
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %22, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = icmp sgt i32 %24, 0
  br i1 %25, label %.lr.ph, label %.loopexit.._crit_edge_crit_edge

.loopexit.._crit_edge_crit_edge:                  ; preds = %.loopexit
  %.pre = sext i32 %24 to i64
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.loopexit.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.loopexit.._crit_edge_crit_edge ], [ %36, %.lr.ph ]
  %26 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %.pre-phi
  call void @_ZSt4sortIPSt4pairIiiEPFbS1_S1_EEvT_S5_T0_(ptr noundef nonnull %14, ptr noundef nonnull %26, ptr noundef nonnull @_Z7compareSt4pairIiiES0_)
  %27 = load i32, ptr %2, align 4, !tbaa !5
  %28 = icmp sgt i32 %27, 1
  br i1 %28, label %.lr.ph30.preheader, label %._crit_edge31

.lr.ph30.preheader:                               ; preds = %._crit_edge
  %wide.trip.count = zext nneg i32 %27 to i64
  %29 = add nsw i64 %wide.trip.count, -1
  %xtraiter = and i64 %29, 1
  %30 = icmp eq i32 %27, 2
  br i1 %30, label %._crit_edge31.loopexit.unr-lcssa, label %.lr.ph30.preheader.new

.lr.ph30.preheader.new:                           ; preds = %.lr.ph30.preheader
  %unroll_iter = and i64 %29, -2
  br label %.lr.ph30

.lr.ph:                                           ; preds = %.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.loopexit ]
  %31 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %indvars.iv
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %31)
  %33 = getelementptr inbounds i8, ptr %31, i64 4
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %32, ptr noundef nonnull align 4 dereferenceable(4) %33)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %35 = load i32, ptr %2, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = icmp slt i64 %indvars.iv.next, %36
  br i1 %37, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge31.loopexit.unr-lcssa:                 ; preds = %.lr.ph30, %.lr.ph30.preheader
  %spec.select.lcssa.ph = phi i32 [ poison, %.lr.ph30.preheader ], [ %spec.select.1, %.lr.ph30 ]
  %indvars.iv39.unr = phi i64 [ 1, %.lr.ph30.preheader ], [ %indvars.iv.next40.1, %.lr.ph30 ]
  %.01727.unr = phi i32 [ 0, %.lr.ph30.preheader ], [ %spec.select24.1, %.lr.ph30 ]
  %.01926.unr = phi i32 [ 1, %.lr.ph30.preheader ], [ %spec.select.1, %.lr.ph30 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge31, label %.lr.ph30.epil

.lr.ph30.epil:                                    ; preds = %._crit_edge31.loopexit.unr-lcssa
  %38 = sext i32 %.01727.unr to i64
  %39 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %38, i32 1
  %40 = load i32, ptr %39, align 4, !tbaa !11
  %41 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %indvars.iv39.unr
  %42 = load i32, ptr %41, align 4, !tbaa !13
  %.not23.epil = icmp sle i32 %40, %42
  %43 = zext i1 %.not23.epil to i32
  %spec.select.epil = add nuw nsw i32 %.01926.unr, %43
  br label %._crit_edge31

._crit_edge31:                                    ; preds = %.lr.ph30.epil, %._crit_edge31.loopexit.unr-lcssa, %._crit_edge
  %.019.lcssa = phi i32 [ 1, %._crit_edge ], [ %spec.select.lcssa.ph, %._crit_edge31.loopexit.unr-lcssa ], [ %spec.select.epil, %.lr.ph30.epil ]
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.3)
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %44, i32 noundef %.019.lcssa)
  %46 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %45, ptr noundef nonnull @.str.4)
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %46, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @_ZdaPv(ptr noundef nonnull %14) #10
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  %48 = load i32, ptr %1, align 4, !tbaa !5
  %49 = add nsw i32 %48, -1
  store i32 %49, ptr %1, align 4, !tbaa !5
  %.not = icmp eq i32 %48, 0
  br i1 %.not, label %._crit_edge36, label %.lr.ph35, !llvm.loop !14

.lr.ph30:                                         ; preds = %.lr.ph30, %.lr.ph30.preheader.new
  %indvars.iv39 = phi i64 [ 1, %.lr.ph30.preheader.new ], [ %indvars.iv.next40.1, %.lr.ph30 ]
  %.01727 = phi i32 [ 0, %.lr.ph30.preheader.new ], [ %spec.select24.1, %.lr.ph30 ]
  %.01926 = phi i32 [ 1, %.lr.ph30.preheader.new ], [ %spec.select.1, %.lr.ph30 ]
  %niter = phi i64 [ 0, %.lr.ph30.preheader.new ], [ %niter.next.1, %.lr.ph30 ]
  %50 = sext i32 %.01727 to i64
  %51 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %50, i32 1
  %52 = load i32, ptr %51, align 4, !tbaa !11
  %53 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %indvars.iv39
  %54 = load i32, ptr %53, align 4, !tbaa !13
  %.not23 = icmp sle i32 %52, %54
  %55 = zext i1 %.not23 to i32
  %spec.select = add nuw nsw i32 %.01926, %55
  %56 = trunc nuw nsw i64 %indvars.iv39 to i32
  %spec.select24 = select i1 %.not23, i32 %56, i32 %.01727
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, 1
  %57 = sext i32 %spec.select24 to i64
  %58 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %57, i32 1
  %59 = load i32, ptr %58, align 4, !tbaa !11
  %60 = getelementptr inbounds %"struct.std::pair", ptr %14, i64 %indvars.iv.next40
  %61 = load i32, ptr %60, align 4, !tbaa !13
  %.not23.1 = icmp sle i32 %59, %61
  %62 = zext i1 %.not23.1 to i32
  %spec.select.1 = add nuw nsw i32 %spec.select, %62
  %63 = trunc nuw nsw i64 %indvars.iv.next40 to i32
  %spec.select24.1 = select i1 %.not23.1, i32 %63, i32 %spec.select24
  %indvars.iv.next40.1 = add nuw nsw i64 %indvars.iv39, 2
  %niter.next.1 = add i64 %niter, 2
  %niter.ncmp.1 = icmp eq i64 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1, label %._crit_edge31.loopexit.unr-lcssa, label %.lr.ph30, !llvm.loop !15

._crit_edge36:                                    ; preds = %._crit_edge31, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3

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 #4

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; 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 #6 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)) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEPFbS1_S1_EEvT_S5_T0_(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #7

attributes #0 = { 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 #1 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = { nobuiltin allocsize(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 = { 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 #7 = { nobuiltin nounwind "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 #8 = { nounwind }
attributes #9 = { builtin allocsize(0) }
attributes #10 = { builtin 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, !6, i64 4}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 0}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !10}


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