; LLVM IR from ShahjalalShohag/code-library :: Dynamic Programming Optimizations (DP on Convex Hulls)

; 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"

%struct.PT = type { i32, i32 }
%"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::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 { i32, i32 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%class.anon = type { i8 }
%"struct.std::_Setprecision" = type { i32 }

@n = external dso_local global i32, align 4
@p = external dso_local global [205 x %struct.PT], align 16
@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 uwtable
declare dso_local noundef zeroext i1 @_Z2yod(double noundef) #0

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"struct.std::pair", align 4
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %class.anon, align 1
  %11 = alloca double, align 8
  %12 = alloca double, align 8
  %13 = alloca double, align 8
  %14 = alloca i32, align 4
  %15 = alloca double, align 8
  %16 = alloca %"struct.std::_Setprecision", align 4
  store i32 0, ptr %1, align 4
  %17 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %18 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %19 = getelementptr i8, ptr %18, i64 -24
  %20 = load i64, ptr %19, align 8
  %21 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %20
  %22 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %21, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  %23 = 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 %24

24:                                               ; preds = %100, %0
  %25 = load i32, ptr %2, align 4, !tbaa !8
  %26 = add nsw i32 %25, -1
  store i32 %26, ptr %2, align 4, !tbaa !8
  %27 = icmp ne i32 %25, 0
  br i1 %27, label %28, label %110

28:                                               ; preds = %24
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  store i32 1, ptr %3, align 4, !tbaa !8
  br label %30

30:                                               ; preds = %46, %28
  %31 = load i32, ptr %3, align 4, !tbaa !8
  %32 = load i32, ptr @n, align 4, !tbaa !8
  %33 = icmp sle i32 %31, %32
  br i1 %33, label %35, label %34

34:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %49

35:                                               ; preds = %30
  %36 = load i32, ptr %3, align 4, !tbaa !8
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [205 x %struct.PT], ptr @p, i64 0, i64 %37
  %39 = getelementptr inbounds %struct.PT, ptr %38, i32 0, i32 0
  %40 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %39)
  %41 = load i32, ptr %3, align 4, !tbaa !8
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [205 x %struct.PT], ptr @p, i64 0, i64 %42
  %44 = getelementptr inbounds %struct.PT, ptr %43, i32 0, i32 1
  %45 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %40, ptr noundef nonnull align 4 dereferenceable(4) %44)
  br label %46

46:                                               ; preds = %35
  %47 = load i32, ptr %3, align 4, !tbaa !8
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %3, align 4, !tbaa !8
  br label %30, !llvm.loop !11

49:                                               ; preds = %34
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  store i32 1, ptr %4, align 4, !tbaa !8
  br label %50

50:                                               ; preds = %71, %49
  %51 = load i32, ptr %4, align 4, !tbaa !8
  %52 = load i32, ptr @n, align 4, !tbaa !8
  %53 = icmp sle i32 %51, %52
  br i1 %53, label %55, label %54

54:                                               ; preds = %50
  store i32 7, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %74

55:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 1, ptr %6, align 4, !tbaa !8
  br label %56

56:                                               ; preds = %67, %55
  %57 = load i32, ptr %6, align 4, !tbaa !8
  %58 = load i32, ptr @n, align 4, !tbaa !8
  %59 = icmp sle i32 %57, %58
  br i1 %59, label %61, label %60

60:                                               ; preds = %56
  store i32 10, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %70

61:                                               ; preds = %56
  %62 = load i32, ptr %4, align 4, !tbaa !8
  %63 = load i32, ptr %6, align 4, !tbaa !8
  %64 = icmp ne i32 %62, %63
  br i1 %64, label %65, label %66

65:                                               ; preds = %61
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #7
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %6)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 4 dereferenceable(8) %7)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  br label %66

66:                                               ; preds = %65, %61
  br label %67

67:                                               ; preds = %66
  %68 = load i32, ptr %6, align 4, !tbaa !8
  %69 = add nsw i32 %68, 1
  store i32 %69, ptr %6, align 4, !tbaa !8
  br label %56, !llvm.loop !13

70:                                               ; preds = %60
  br label %71

71:                                               ; preds = %70
  %72 = load i32, ptr %4, align 4, !tbaa !8
  %73 = add nsw i32 %72, 1
  store i32 %73, ptr %4, align 4, !tbaa !8
  br label %50, !llvm.loop !14

74:                                               ; preds = %54
  %75 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %76 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %75, ptr %76, align 8
  %77 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %78 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %77, ptr %78, align 8
  %79 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  %80 = load ptr, ptr %79, align 8
  %81 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %82 = load ptr, ptr %81, align 8
  call void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ4mainE3$_0EvT_SA_T0_"(ptr %80, ptr %82)
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #7
  store double 0.000000e+00, ptr %11, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #7
  store double 1.000000e+07, ptr %12, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #7
  store double 0.000000e+00, ptr %13, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #7
  store i32 70, ptr %14, align 4, !tbaa !8
  br label %83

83:                                               ; preds = %99, %74
  %84 = load i32, ptr %14, align 4, !tbaa !8
  %85 = add nsw i32 %84, -1
  store i32 %85, ptr %14, align 4, !tbaa !8
  %86 = icmp ne i32 %84, 0
  br i1 %86, label %87, label %100

87:                                               ; preds = %83
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  %88 = load double, ptr %11, align 8, !tbaa !15
  %89 = load double, ptr %12, align 8, !tbaa !15
  %90 = fadd double %88, %89
  %91 = fdiv double %90, 2.000000e+00
  store double %91, ptr %15, align 8, !tbaa !15
  %92 = load double, ptr %15, align 8, !tbaa !15
  %93 = call noundef zeroext i1 @_Z2yod(double noundef %92)
  br i1 %93, label %94, label %97

94:                                               ; preds = %87
  %95 = load double, ptr %15, align 8, !tbaa !15
  store double %95, ptr %13, align 8, !tbaa !15
  %96 = load double, ptr %15, align 8, !tbaa !15
  store double %96, ptr %11, align 8, !tbaa !15
  br label %99

97:                                               ; preds = %87
  %98 = load double, ptr %15, align 8, !tbaa !15
  store double %98, ptr %12, align 8, !tbaa !15
  br label %99

99:                                               ; preds = %97, %94
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  br label %83, !llvm.loop !17

100:                                              ; preds = %83
  %101 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt5fixedRSt8ios_base)
  %102 = call i32 @_ZSt12setprecisioni(i32 noundef 10)
  %103 = getelementptr inbounds %"struct.std::_Setprecision", ptr %16, i32 0, i32 0
  store i32 %102, ptr %103, align 4
  %104 = getelementptr inbounds %"struct.std::_Setprecision", ptr %16, i32 0, i32 0
  %105 = load i32, ptr %104, align 4
  %106 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8) %101, i32 %105)
  %107 = load double, ptr %13, align 8, !tbaa !15
  %108 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEd(ptr noundef nonnull align 8 dereferenceable(8) %106, double noundef %107)
  %109 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %108, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  br label %24, !llvm.loop !18

110:                                              ; preds = %24
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %111 = load i32, ptr %1, align 4
  ret i32 %111
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #4

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #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)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(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: inlinehint mustprogress uwtable
declare hidden void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ4mainE3$_0EvT_SA_T0_"(ptr, ptr) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8), i32) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt5fixedRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local i32 @_ZSt12setprecisioni(i32 noundef) #6

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

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 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 #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 = { 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 #6 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = !{!16, !16, i64 0}
!16 = !{!"double", !10, i64 0}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !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"

%struct.PT = type { i32, i32 }
%"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::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 { i32, i32 }

@n = external dso_local global i32, align 4
@p = external dso_local global [205 x %struct.PT], align 16
@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 uwtable
declare dso_local noundef zeroext i1 @_Z2yod(double noundef) local_unnamed_addr #0

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::pair", align 4
  %5 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %6 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %7 = getelementptr i8, ptr %6, i64 -24
  %8 = load i64, ptr %7, align 8
  %9 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %8
  %10 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %9, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %11 = 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)
  %12 = load i32, ptr %1, align 4, !tbaa !8
  %13 = add nsw i32 %12, -1
  store i32 %13, ptr %1, align 4, !tbaa !8
  %.not42 = icmp eq i32 %12, 0
  br i1 %.not42, label %._crit_edge45, label %.lr.ph44

.lr.ph44:                                         ; preds = %0, %44
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %15 = load i32, ptr @n, align 4, !tbaa !8
  %.not2127 = icmp slt i32 %15, 1
  br i1 %.not2127, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph44
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  store i32 1, ptr %2, align 4, !tbaa !8
  %16 = load i32, ptr @n, align 4, !tbaa !8
  %.not2234 = icmp slt i32 %16, 1
  br i1 %.not2234, label %._crit_edge37, label %.lr.ph36.split

.lr.ph:                                           ; preds = %.lr.ph44, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 1, %.lr.ph44 ]
  %17 = getelementptr inbounds [205 x %struct.PT], ptr @p, i64 0, i64 %indvars.iv
  %18 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %17)
  %19 = getelementptr inbounds i8, ptr %17, i64 4
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %18, ptr noundef nonnull align 4 dereferenceable(4) %19)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %21 = load i32, ptr @n, align 4, !tbaa !8
  %22 = sext i32 %21 to i64
  %.not21.not = icmp slt i64 %indvars.iv, %22
  br i1 %.not21.not, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge37:                                    ; preds = %._crit_edge33, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %23 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %24 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  call void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ4mainE3$_0EvT_SA_T0_"(ptr %23, ptr %24)
  br label %39

.lr.ph36.split:                                   ; preds = %._crit_edge, %._crit_edge33
  %25 = phi i32 [ %27, %._crit_edge33 ], [ %16, %._crit_edge ]
  %26 = phi i32 [ %29, %._crit_edge33 ], [ 1, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  store i32 1, ptr %3, align 4, !tbaa !8
  %.not2529 = icmp slt i32 %25, 1
  br i1 %.not2529, label %._crit_edge33, label %.lr.ph32

._crit_edge33.loopexit:                           ; preds = %34
  %.pre48 = load i32, ptr %2, align 4, !tbaa !8
  br label %._crit_edge33

._crit_edge33:                                    ; preds = %._crit_edge33.loopexit, %.lr.ph36.split
  %27 = phi i32 [ %35, %._crit_edge33.loopexit ], [ %25, %.lr.ph36.split ]
  %28 = phi i32 [ %.pre48, %._crit_edge33.loopexit ], [ %26, %.lr.ph36.split ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %2, align 4, !tbaa !8
  %.not22.not = icmp slt i32 %28, %27
  br i1 %.not22.not, label %.lr.ph36.split, label %._crit_edge37, !llvm.loop !13

.lr.ph32:                                         ; preds = %.lr.ph36.split, %34
  %30 = phi i32 [ %35, %34 ], [ %25, %.lr.ph36.split ]
  %31 = phi i32 [ %36, %34 ], [ %25, %.lr.ph36.split ]
  %storemerge2430 = phi i32 [ %38, %34 ], [ 1, %.lr.ph36.split ]
  %32 = load i32, ptr %2, align 4, !tbaa !8
  %.not26 = icmp eq i32 %32, %storemerge2430
  br i1 %.not26, label %34, label %33

33:                                               ; preds = %.lr.ph32
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #7
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %4, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 4 dereferenceable(8) %4)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #7
  %.pre = load i32, ptr %3, align 4, !tbaa !8
  %.pre47 = load i32, ptr @n, align 4, !tbaa !8
  br label %34

34:                                               ; preds = %.lr.ph32, %33
  %35 = phi i32 [ %30, %.lr.ph32 ], [ %.pre47, %33 ]
  %36 = phi i32 [ %31, %.lr.ph32 ], [ %.pre47, %33 ]
  %37 = phi i32 [ %storemerge2430, %.lr.ph32 ], [ %.pre, %33 ]
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %3, align 4, !tbaa !8
  %.not25.not = icmp slt i32 %37, %36
  br i1 %.not25.not, label %.lr.ph32, label %._crit_edge33.loopexit, !llvm.loop !15

39:                                               ; preds = %._crit_edge37, %39
  %.01441 = phi i32 [ 70, %._crit_edge37 ], [ %40, %39 ]
  %.01540 = phi double [ 0.000000e+00, %._crit_edge37 ], [ %..015, %39 ]
  %.01639 = phi double [ 1.000000e+07, %._crit_edge37 ], [ %.016., %39 ]
  %.01838 = phi double [ 0.000000e+00, %._crit_edge37 ], [ %..018, %39 ]
  %40 = add nsw i32 %.01441, -1
  %41 = fadd double %.01838, %.01639
  %42 = fmul double %41, 5.000000e-01
  %43 = call noundef zeroext i1 @_Z2yod(double noundef %42)
  %..018 = select i1 %43, double %42, double %.01838
  %.016. = select i1 %43, double %.01639, double %42
  %..015 = select i1 %43, double %42, double %.01540
  %.not23 = icmp eq i32 %40, 0
  br i1 %.not23, label %44, label %39, !llvm.loop !16

44:                                               ; preds = %39
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt5fixedRSt8ios_base)
  %46 = call i32 @_ZSt12setprecisioni(i32 noundef 10)
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8) %45, i32 %46)
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEd(ptr noundef nonnull align 8 dereferenceable(8) %47, double noundef %..015)
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %48, i8 noundef signext 10)
  %50 = load i32, ptr %1, align 4, !tbaa !8
  %51 = add nsw i32 %50, -1
  store i32 %51, ptr %1, align 4, !tbaa !8
  %.not = icmp eq i32 %50, 0
  br i1 %.not, label %._crit_edge45, label %.lr.ph44, !llvm.loop !17

._crit_edge45:                                    ; preds = %44, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) 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 #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(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: inlinehint mustprogress uwtable
declare hidden void @"_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEZ4mainE3$_0EvT_SA_T0_"(ptr, ptr) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8), i32) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt5fixedRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local i32 @_ZSt12setprecisioni(i32 noundef) local_unnamed_addr #6

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

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = { 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 #6 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12, !14}
!14 = !{!"llvm.loop.unswitch.partial.disable"}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}
!17 = distinct !{!17, !12}


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