; LLVM IR from ippeb/ACM-ICPC :: graph_theory/edmonds_karp/edmonds_karp_adjacency_lists.ll (Z1eiii)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, std::pair<int, int>>, std::_Select1st<std::pair<const std::pair<int, int>, std::pair<int, int>>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, std::pair<int, int>>, std::_Select1st<std::pair<const std::pair<int, int>, std::pair<int, int>>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair.3" = type { %"struct.std::pair.5", %"struct.std::pair.5" }
%"struct.std::pair.5" = type { i32, i32 }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_iterator" = type { ptr }

@M = external dso_local global %"class.std::map", align 8
@V = external dso_local global [20002 x %"class.std::vector"], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z1eiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"struct.std::pair.3", align 4
  %8 = alloca %"struct.std::pair.5", align 4
  %9 = alloca %"struct.std::pair.5", align 4
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::pair", align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %12 = load i32, ptr %4, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [20002 x %"class.std::vector"], ptr @V, i64 0, i64 %13
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %14, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.start.p0(i64 16, ptr %7) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %15 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  store i64 %15, ptr %8, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  store i32 0, ptr %10, align 4, !tbaa !5
  %16 = call i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %10)
  store i64 %16, ptr %9, align 4
  %17 = call { i64, i64 } @_ZSt9make_pairISt4pairIiiES1_ES0_INSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(8) %9)
  %18 = getelementptr inbounds { i64, i64 }, ptr %7, i32 0, i32 0
  %19 = extractvalue { i64, i64 } %17, 0
  store i64 %19, ptr %18, align 4
  %20 = getelementptr inbounds { i64, i64 }, ptr %7, i32 0, i32 1
  %21 = extractvalue { i64, i64 } %17, 1
  store i64 %21, ptr %20, align 4
  %22 = call { ptr, i8 } @_ZNSt3mapISt4pairIiiES1_St4lessIS1_ESaIS0_IKS1_S1_EEE6insertIS0_IS1_S1_EEENSt9enable_ifIXsr16is_constructibleIS5_T_EE5valueES0_ISt17_Rb_tree_iteratorIS5_EbEE4typeEOSB_(ptr noundef nonnull align 8 dereferenceable(48) @M, ptr noundef nonnull align 4 dereferenceable(16) %7)
  %23 = getelementptr inbounds { ptr, i8 }, ptr %11, i32 0, i32 0
  %24 = extractvalue { ptr, i8 } %22, 0
  store ptr %24, ptr %23, align 8
  %25 = getelementptr inbounds { ptr, i8 }, ptr %11, i32 0, i32 1
  %26 = extractvalue { ptr, i8 } %22, 1
  store i8 %26, ptr %25, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #2
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3mapISt4pairIiiES1_St4lessIS1_ESaIS0_IKS1_S1_EEE6insertIS0_IS1_S1_EEENSt9enable_ifIXsr16is_constructibleIS5_T_EE5valueES0_ISt17_Rb_tree_iteratorIS5_EbEE4typeEOSB_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(16)) #0 align 2

; 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 dso_local { i64, i64 } @_ZSt9make_pairISt4pairIiiES1_ES0_INSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #0

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #0

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #0

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

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 = { 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"}


; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, std::pair<int, int>>, std::_Select1st<std::pair<const std::pair<int, int>, std::pair<int, int>>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<const std::pair<int, int>, std::pair<int, int>>, std::_Select1st<std::pair<const std::pair<int, int>, std::pair<int, int>>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair.3" = type { %"struct.std::pair.5", %"struct.std::pair.5" }
%"struct.std::pair.5" = type { i32, i32 }

@M = external dso_local global %"class.std::map", align 8
@V = external dso_local global [20002 x %"class.std::vector"], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z1eiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"struct.std::pair.3", align 8
  %8 = alloca %"struct.std::pair.5", align 8
  %9 = alloca %"struct.std::pair.5", align 8
  %10 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %11 = sext i32 %0 to i64
  %12 = getelementptr inbounds [20002 x %"class.std::vector"], ptr @V, i64 0, i64 %11
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %12, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %7) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #2
  %13 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  store i64 %13, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #2
  store i32 0, ptr %10, align 4, !tbaa !5
  %14 = call i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %10)
  store i64 %14, ptr %9, align 8
  %15 = call { i64, i64 } @_ZSt9make_pairISt4pairIiiES1_ES0_INSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(8) %9)
  %16 = extractvalue { i64, i64 } %15, 0
  store i64 %16, ptr %7, align 8
  %17 = getelementptr inbounds i8, ptr %7, i64 8
  %18 = extractvalue { i64, i64 } %15, 1
  store i64 %18, ptr %17, align 8
  %19 = call { ptr, i8 } @_ZNSt3mapISt4pairIiiES1_St4lessIS1_ESaIS0_IKS1_S1_EEE6insertIS0_IS1_S1_EEENSt9enable_ifIXsr16is_constructibleIS5_T_EE5valueES0_ISt17_Rb_tree_iteratorIS5_EbEE4typeEOSB_(ptr noundef nonnull align 8 dereferenceable(48) @M, ptr noundef nonnull align 4 dereferenceable(16) %7)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #2
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #2
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3mapISt4pairIiiES1_St4lessIS1_ESaIS0_IKS1_S1_EEE6insertIS0_IS1_S1_EEENSt9enable_ifIXsr16is_constructibleIS5_T_EE5valueES0_ISt17_Rb_tree_iteratorIS5_EbEE4typeEOSB_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(16)) local_unnamed_addr #0 align 2

; 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 dso_local { i64, i64 } @_ZSt9make_pairISt4pairIiiES1_ES0_INSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0

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

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 = { 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"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass