; LLVM IR from tangjz/acm-icpc :: lydsy/3566.ll (Z4dfs2ii)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

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

@e = external dso_local global [500001 x %"class.std::vector"], align 16
@f = external dso_local global [500001 x double], align 16
@g = external dso_local global [500001 x double], align 16
@ans = external dso_local global double, align 8

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIidESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIidESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIidESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_Z5mergedd(double noundef, double noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4dfs2ii(i32 noundef %0, i32 noundef %1) #3 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds [500001 x double], ptr @f, i64 0, i64 %8
  %10 = load double, ptr %9, align 8, !tbaa !9
  %11 = load double, ptr @ans, align 8, !tbaa !9
  %12 = fadd double %11, %10
  store double %12, ptr @ans, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [500001 x %"class.std::vector"], ptr @e, i64 0, i64 %14
  %16 = call ptr @_ZNSt6vectorISt4pairIidESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #5
  %17 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %5, i32 0, i32 0
  store ptr %16, ptr %17, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [500001 x %"class.std::vector"], ptr @e, i64 0, i64 %19
  %21 = call ptr @_ZNSt6vectorISt4pairIidESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %20) #5
  %22 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %21, ptr %22, align 8
  br label %23

23:                                               ; preds = %69, %2
  %24 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIidESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  br i1 %24, label %26, label %25

25:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %71

26:                                               ; preds = %23
  %27 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %28 = getelementptr inbounds %"struct.std::pair", ptr %27, i32 0, i32 0
  %29 = load i32, ptr %28, align 8, !tbaa !11
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = icmp ne i32 %29, %30
  br i1 %31, label %32, label %68

32:                                               ; preds = %26
  %33 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %34 = getelementptr inbounds %"struct.std::pair", ptr %33, i32 0, i32 0
  %35 = load i32, ptr %34, align 8, !tbaa !11
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [500001 x double], ptr @g, i64 0, i64 %36
  %38 = load double, ptr %37, align 8, !tbaa !9
  %39 = load i32, ptr %3, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [500001 x double], ptr @f, i64 0, i64 %40
  %42 = load double, ptr %41, align 8, !tbaa !9
  %43 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %44 = getelementptr inbounds %"struct.std::pair", ptr %43, i32 0, i32 0
  %45 = load i32, ptr %44, align 8, !tbaa !11
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [500001 x double], ptr @g, i64 0, i64 %46
  %48 = load double, ptr %47, align 8, !tbaa !9
  %49 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %50 = getelementptr inbounds %"struct.std::pair", ptr %49, i32 0, i32 1
  %51 = load double, ptr %50, align 8, !tbaa !13
  %52 = fmul double %48, %51
  %53 = call noundef double @_Z5splitdd(double noundef %42, double noundef %52)
  %54 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %55 = getelementptr inbounds %"struct.std::pair", ptr %54, i32 0, i32 1
  %56 = load double, ptr %55, align 8, !tbaa !13
  %57 = fmul double %53, %56
  %58 = call noundef double @_Z5mergedd(double noundef %38, double noundef %57)
  %59 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %60 = getelementptr inbounds %"struct.std::pair", ptr %59, i32 0, i32 0
  %61 = load i32, ptr %60, align 8, !tbaa !11
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds [500001 x double], ptr @f, i64 0, i64 %62
  store double %58, ptr %63, align 8, !tbaa !9
  %64 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %65 = getelementptr inbounds %"struct.std::pair", ptr %64, i32 0, i32 0
  %66 = load i32, ptr %65, align 8, !tbaa !11
  %67 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z4dfs2ii(i32 noundef %66, i32 noundef %67)
  br label %68

68:                                               ; preds = %32, %26
  br label %69

69:                                               ; preds = %68
  %70 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  br label %23, !llvm.loop !14

71:                                               ; preds = %25
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef double @_Z5splitdd(double noundef, double noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 = { 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 = !{!"double", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIidE", !6, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

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

@e = external dso_local global [500001 x %"class.std::vector"], align 16
@f = external dso_local local_unnamed_addr global [500001 x double], align 16
@g = external dso_local local_unnamed_addr global [500001 x double], align 16
@ans = external dso_local local_unnamed_addr global double, align 8

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIidESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIidESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIidESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_Z5mergedd(double noundef, double noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4dfs2ii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #3 {
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = sext i32 %0 to i64
  %6 = getelementptr inbounds [500001 x double], ptr @f, i64 0, i64 %5
  %7 = load double, ptr %6, align 8, !tbaa !5
  %8 = load double, ptr @ans, align 8, !tbaa !5
  %9 = fadd double %7, %8
  store double %9, ptr @ans, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %10 = getelementptr inbounds [500001 x %"class.std::vector"], ptr @e, i64 0, i64 %5
  %11 = tail call ptr @_ZNSt6vectorISt4pairIidESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #5
  store ptr %11, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %12 = tail call ptr @_ZNSt6vectorISt4pairIidESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #5
  store ptr %12, ptr %4, align 8
  %13 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIidESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  br i1 %13, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %44, %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  ret void

.lr.ph:                                           ; preds = %2, %44
  %14 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %15 = load i32, ptr %14, align 8, !tbaa !9
  %.not = icmp eq i32 %15, %1
  br i1 %.not, label %44, label %16

16:                                               ; preds = %.lr.ph
  %17 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %18 = load i32, ptr %17, align 8, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [500001 x double], ptr @g, i64 0, i64 %19
  %21 = load double, ptr %20, align 8, !tbaa !5
  %22 = load double, ptr %6, align 8, !tbaa !5
  %23 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %24 = load i32, ptr %23, align 8, !tbaa !9
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [500001 x double], ptr @g, i64 0, i64 %25
  %27 = load double, ptr %26, align 8, !tbaa !5
  %28 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %29 = getelementptr inbounds i8, ptr %28, i64 8
  %30 = load double, ptr %29, align 8, !tbaa !12
  %31 = fmul double %27, %30
  %32 = call noundef double @_Z5splitdd(double noundef %22, double noundef %31)
  %33 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %34 = getelementptr inbounds i8, ptr %33, i64 8
  %35 = load double, ptr %34, align 8, !tbaa !12
  %36 = fmul double %32, %35
  %37 = call noundef double @_Z5mergedd(double noundef %21, double noundef %36)
  %38 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %39 = load i32, ptr %38, align 8, !tbaa !9
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [500001 x double], ptr @f, i64 0, i64 %40
  store double %37, ptr %41, align 8, !tbaa !5
  %42 = call noundef ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %43 = load i32, ptr %42, align 8, !tbaa !9
  call void @_Z4dfs2ii(i32 noundef %43, i32 noundef %0)
  br label %44

44:                                               ; preds = %.lr.ph, %16
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIidESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %46 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIidESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  br i1 %46, label %.lr.ph, label %._crit_edge, !llvm.loop !13
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef double @_Z5splitdd(double noundef, double noundef) local_unnamed_addr #4

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 = { 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSSt4pairIidE", !11, i64 0, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 8}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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