; LLVM IR from ShahjalalShohag/code-library :: Graph Theory/Prufer Code.ll (Z14prufer_to_treeRKSt6vectorIiSaIiEE)

; 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.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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::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 }
%"class.std::allocator" = type { i8 }
%"struct.std::pair" = type { i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #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 nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_Z14prufer_to_treeRKSt6vectorIiSaIiEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i1, align 1
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca %"struct.std::pair", align 4
  %18 = alloca i32, align 4
  %19 = alloca %"struct.std::pair", align 4
  %20 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %21) #3
  %23 = trunc i64 %22 to i32
  %24 = add nsw i32 %23, 2
  store i32 %24, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #3
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 1, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #3
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #3
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %26, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %27 unwind label %34

27:                                               ; preds = %2
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %28

28:                                               ; preds = %48, %27
  %29 = load i32, ptr %11, align 4, !tbaa !9
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = sub nsw i32 %30, 2
  %32 = icmp slt i32 %29, %31
  br i1 %32, label %38, label %33

33:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %51

34:                                               ; preds = %2
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %9, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %10, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %161

38:                                               ; preds = %28
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = load i32, ptr %11, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %39, i64 noundef %41) #3
  %43 = load i32, ptr %42, align 4, !tbaa !9
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %44) #3
  %46 = load i32, ptr %45, align 4, !tbaa !9
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %45, align 4, !tbaa !9
  br label %48

48:                                               ; preds = %38
  %49 = load i32, ptr %11, align 4, !tbaa !9
  %50 = add nsw i32 %49, 1
  store i32 %50, ptr %11, align 4, !tbaa !9
  br label %28, !llvm.loop !11

51:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  store i32 0, ptr %12, align 4, !tbaa !9
  br label %52

52:                                               ; preds = %64, %51
  %53 = load i32, ptr %12, align 4, !tbaa !9
  %54 = load i32, ptr %5, align 4, !tbaa !9
  %55 = icmp slt i32 %53, %54
  br i1 %55, label %56, label %62

56:                                               ; preds = %52
  %57 = load i32, ptr %12, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  %59 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %58) #3
  %60 = load i32, ptr %59, align 4, !tbaa !9
  %61 = icmp ne i32 %60, 1
  br label %62

62:                                               ; preds = %56, %52
  %63 = phi i1 [ false, %52 ], [ %61, %56 ]
  br i1 %63, label %64, label %67

64:                                               ; preds = %62
  %65 = load i32, ptr %12, align 4, !tbaa !9
  %66 = add nsw i32 %65, 1
  store i32 %66, ptr %12, align 4, !tbaa !9
  br label %52, !llvm.loop !13

67:                                               ; preds = %62
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %68 = load i32, ptr %12, align 4, !tbaa !9
  store i32 %68, ptr %13, align 4, !tbaa !9
  store i1 false, ptr %14, align 1
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #3
  store i32 0, ptr %15, align 4, !tbaa !9
  br label %69

69:                                               ; preds = %126, %67
  %70 = load i32, ptr %15, align 4, !tbaa !9
  %71 = load i32, ptr %5, align 4, !tbaa !9
  %72 = sub nsw i32 %71, 2
  %73 = icmp slt i32 %70, %72
  br i1 %73, label %75, label %74

74:                                               ; preds = %69
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #3
  br label %129

75:                                               ; preds = %69
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #3
  %76 = load ptr, ptr %4, align 8, !tbaa !5
  %77 = load i32, ptr %15, align 4, !tbaa !9
  %78 = sext i32 %77 to i64
  %79 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %76, i64 noundef %78) #3
  %80 = load i32, ptr %79, align 4, !tbaa !9
  store i32 %80, ptr %16, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #3
  %81 = invoke i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %13, ptr noundef nonnull align 4 dereferenceable(4) %16)
          to label %82 unwind label %101

82:                                               ; preds = %75
  store i64 %81, ptr %17, align 4
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %17)
          to label %83 unwind label %101

83:                                               ; preds = %82
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #3
  %84 = load i32, ptr %13, align 4, !tbaa !9
  %85 = sext i32 %84 to i64
  %86 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %85) #3
  %87 = load i32, ptr %86, align 4, !tbaa !9
  %88 = add nsw i32 %87, -1
  store i32 %88, ptr %86, align 4, !tbaa !9
  %89 = load i32, ptr %16, align 4, !tbaa !9
  %90 = sext i32 %89 to i64
  %91 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %90) #3
  %92 = load i32, ptr %91, align 4, !tbaa !9
  %93 = add nsw i32 %92, -1
  store i32 %93, ptr %91, align 4, !tbaa !9
  %94 = icmp eq i32 %93, 1
  br i1 %94, label %95, label %105

95:                                               ; preds = %83
  %96 = load i32, ptr %16, align 4, !tbaa !9
  %97 = load i32, ptr %12, align 4, !tbaa !9
  %98 = icmp slt i32 %96, %97
  br i1 %98, label %99, label %105

99:                                               ; preds = %95
  %100 = load i32, ptr %16, align 4, !tbaa !9
  store i32 %100, ptr %13, align 4, !tbaa !9
  br label %125

101:                                              ; preds = %82, %75
  %102 = landingpad { ptr, i32 }
          cleanup
  %103 = extractvalue { ptr, i32 } %102, 0
  store ptr %103, ptr %9, align 8
  %104 = extractvalue { ptr, i32 } %102, 1
  store i32 %104, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #3
  br label %160

105:                                              ; preds = %95, %83
  %106 = load i32, ptr %12, align 4, !tbaa !9
  %107 = add nsw i32 %106, 1
  store i32 %107, ptr %12, align 4, !tbaa !9
  br label %108

108:                                              ; preds = %120, %105
  %109 = load i32, ptr %12, align 4, !tbaa !9
  %110 = load i32, ptr %5, align 4, !tbaa !9
  %111 = icmp slt i32 %109, %110
  br i1 %111, label %112, label %118

112:                                              ; preds = %108
  %113 = load i32, ptr %12, align 4, !tbaa !9
  %114 = sext i32 %113 to i64
  %115 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %114) #3
  %116 = load i32, ptr %115, align 4, !tbaa !9
  %117 = icmp ne i32 %116, 1
  br label %118

118:                                              ; preds = %112, %108
  %119 = phi i1 [ false, %108 ], [ %117, %112 ]
  br i1 %119, label %120, label %123

120:                                              ; preds = %118
  %121 = load i32, ptr %12, align 4, !tbaa !9
  %122 = add nsw i32 %121, 1
  store i32 %122, ptr %12, align 4, !tbaa !9
  br label %108, !llvm.loop !14

123:                                              ; preds = %118
  %124 = load i32, ptr %12, align 4, !tbaa !9
  store i32 %124, ptr %13, align 4, !tbaa !9
  br label %125

125:                                              ; preds = %123, %99
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #3
  br label %126

126:                                              ; preds = %125
  %127 = load i32, ptr %15, align 4, !tbaa !9
  %128 = add nsw i32 %127, 1
  store i32 %128, ptr %15, align 4, !tbaa !9
  br label %69, !llvm.loop !15

129:                                              ; preds = %74
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #3
  store i32 0, ptr %18, align 4, !tbaa !9
  br label %130

130:                                              ; preds = %153, %129
  %131 = load i32, ptr %18, align 4, !tbaa !9
  %132 = load i32, ptr %5, align 4, !tbaa !9
  %133 = sub nsw i32 %132, 1
  %134 = icmp slt i32 %131, %133
  br i1 %134, label %136, label %135

135:                                              ; preds = %130
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #3
  br label %156

136:                                              ; preds = %130
  %137 = load i32, ptr %18, align 4, !tbaa !9
  %138 = sext i32 %137 to i64
  %139 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %138) #3
  %140 = load i32, ptr %139, align 4, !tbaa !9
  %141 = icmp eq i32 %140, 1
  br i1 %141, label %142, label %152

142:                                              ; preds = %136
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #3
  %143 = load i32, ptr %5, align 4, !tbaa !9
  %144 = sub nsw i32 %143, 1
  store i32 %144, ptr %20, align 4, !tbaa !9
  %145 = invoke i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %18, ptr noundef nonnull align 4 dereferenceable(4) %20)
          to label %146 unwind label %148

146:                                              ; preds = %142
  store i64 %145, ptr %19, align 4
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %19)
          to label %147 unwind label %148

147:                                              ; preds = %146
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #3
  br label %152

148:                                              ; preds = %146, %142
  %149 = landingpad { ptr, i32 }
          cleanup
  %150 = extractvalue { ptr, i32 } %149, 0
  store ptr %150, ptr %9, align 8
  %151 = extractvalue { ptr, i32 } %149, 1
  store i32 %151, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #3
  br label %160

152:                                              ; preds = %147, %136
  br label %153

153:                                              ; preds = %152
  %154 = load i32, ptr %18, align 4, !tbaa !9
  %155 = add nsw i32 %154, 1
  store i32 %155, ptr %18, align 4, !tbaa !9
  br label %130, !llvm.loop !16

156:                                              ; preds = %135
  store i1 true, ptr %14, align 1
  %157 = load i1, ptr %14, align 1
  br i1 %157, label %159, label %158

158:                                              ; preds = %156
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %159

159:                                              ; preds = %158, %156
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret void

160:                                              ; preds = %148, %101
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  br label %161

161:                                              ; preds = %160, %34
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %162

162:                                              ; preds = %161
  %163 = load ptr, ptr %9, align 8
  %164 = load i32, ptr %10, align 4
  %165 = insertvalue { ptr, i32 } poison, ptr %163, 0
  %166 = insertvalue { ptr, i32 } %165, i32 %164, 1
  resume { ptr, i32 } %166
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 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)) #2 align 2

; 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)) #2

; 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)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !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::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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::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 }
%"class.std::allocator" = type { i8 }
%"struct.std::pair" = type { i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) 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 nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_Z14prufer_to_treeRKSt6vectorIiSaIiEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::pair", align 8
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::pair", align 8
  %11 = alloca i32, align 4
  %12 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %13 = trunc i64 %12 to i32
  %14 = add i32 %13, 2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  %15 = sext i32 %14 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  store i32 1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %15, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %16 unwind label %19

16:                                               ; preds = %2
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  %17 = icmp sgt i32 %13, 0
  br i1 %17, label %.lr.ph.preheader, label %.preheader46

.lr.ph.preheader:                                 ; preds = %16
  %wide.trip.count = and i64 %12, 2147483647
  br label %.lr.ph

.preheader46:                                     ; preds = %.lr.ph, %16
  %18 = icmp sgt i32 %13, -2
  br i1 %18, label %.lr.ph49.preheader, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %.preheader46
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #4
  br label %._crit_edge59

.lr.ph49.preheader:                               ; preds = %.preheader46
  %smax = call i32 @llvm.smax.i32(i32 %14, i32 1)
  %wide.trip.count64 = zext nneg i32 %smax to i64
  br label %.lr.ph49

19:                                               ; preds = %2
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  br label %73

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #4
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %23) #4
  %25 = load i32, ptr %24, align 4, !tbaa !5
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %24, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %.preheader46, label %.lr.ph, !llvm.loop !9

.lr.ph49:                                         ; preds = %.lr.ph49.preheader, %29
  %indvars.iv61 = phi i64 [ 0, %.lr.ph49.preheader ], [ %indvars.iv.next62, %29 ]
  %27 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv61) #4
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %.not = icmp eq i32 %28, 1
  br i1 %.not, label %.critedge.split.loop.exit, label %29

29:                                               ; preds = %.lr.ph49
  %indvars.iv.next62 = add nuw nsw i64 %indvars.iv61, 1
  %exitcond65.not = icmp eq i64 %indvars.iv.next62, %wide.trip.count64
  br i1 %exitcond65.not, label %.critedge, label %.lr.ph49, !llvm.loop !11

.critedge.split.loop.exit:                        ; preds = %.lr.ph49
  %30 = trunc nuw nsw i64 %indvars.iv61 to i32
  br label %.critedge

.critedge:                                        ; preds = %29, %.critedge.split.loop.exit
  %.030.lcssa = phi i32 [ %30, %.critedge.split.loop.exit ], [ %smax, %29 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  store i32 %.030.lcssa, ptr %6, align 4, !tbaa !5
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br i1 %17, label %.lr.ph54.preheader, label %._crit_edge

.lr.ph54.preheader:                               ; preds = %.critedge
  %wide.trip.count73 = and i64 %12, 2147483647
  br label %.lr.ph54

._crit_edge:                                      ; preds = %.critedge2, %.critedge
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #4
  %31 = add nsw i32 %13, 1
  store i32 0, ptr %9, align 4, !tbaa !5
  %.not4055 = icmp slt i32 %13, 0
  br i1 %.not4055, label %._crit_edge59, label %.lr.ph58

.lr.ph54:                                         ; preds = %.lr.ph54.preheader, %.critedge2
  %indvars.iv70 = phi i64 [ 0, %.lr.ph54.preheader ], [ %indvars.iv.next71, %.critedge2 ]
  %.152 = phi i32 [ %.030.lcssa, %.lr.ph54.preheader ], [ %.3, %.critedge2 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  %32 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv70) #4
  %33 = load i32, ptr %32, align 4, !tbaa !5
  store i32 %33, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #4
  %34 = invoke i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__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) %7)
          to label %35 unwind label %52

35:                                               ; preds = %.lr.ph54
  store i64 %34, ptr %8, align 8
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %8)
          to label %36 unwind label %52

36:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #4
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %38) #4
  %40 = load i32, ptr %39, align 4, !tbaa !5
  %41 = add nsw i32 %40, -1
  store i32 %41, ptr %39, align 4, !tbaa !5
  %42 = load i32, ptr %7, align 4, !tbaa !5
  %43 = sext i32 %42 to i64
  %44 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %43) #4
  %45 = load i32, ptr %44, align 4, !tbaa !5
  %46 = add nsw i32 %45, -1
  store i32 %46, ptr %44, align 4, !tbaa !5
  %47 = icmp eq i32 %46, 1
  %48 = load i32, ptr %7, align 4
  %49 = icmp slt i32 %48, %.152
  %or.cond = select i1 %47, i1 %49, i1 false
  br i1 %or.cond, label %.critedge2, label %.preheader.preheader

.preheader.preheader:                             ; preds = %36
  %50 = sext i32 %.152 to i64
  %51 = add i32 %.152, 1
  %smax68 = call i32 @llvm.smax.i32(i32 %14, i32 %51)
  br label %.preheader

52:                                               ; preds = %35, %.lr.ph54
  %53 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  br label %72

.preheader:                                       ; preds = %.preheader.preheader, %55
  %indvars.iv66 = phi i64 [ %50, %.preheader.preheader ], [ %indvars.iv.next67, %55 ]
  %indvars.iv.next67 = add nsw i64 %indvars.iv66, 1
  %54 = icmp slt i64 %indvars.iv.next67, %15
  br i1 %54, label %55, label %.critedge2

55:                                               ; preds = %.preheader
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv.next67) #4
  %57 = load i32, ptr %56, align 4, !tbaa !5
  %.not43 = icmp eq i32 %57, 1
  br i1 %.not43, label %.critedge2.loopexit.split.loop.exit79, label %.preheader, !llvm.loop !12

.critedge2.loopexit.split.loop.exit79:            ; preds = %55
  %58 = trunc nsw i64 %indvars.iv.next67 to i32
  br label %.critedge2

.critedge2:                                       ; preds = %.preheader, %.critedge2.loopexit.split.loop.exit79, %36
  %storemerge44 = phi i32 [ %48, %36 ], [ %58, %.critedge2.loopexit.split.loop.exit79 ], [ %smax68, %.preheader ]
  %.3 = phi i32 [ %.152, %36 ], [ %58, %.critedge2.loopexit.split.loop.exit79 ], [ %smax68, %.preheader ]
  store i32 %storemerge44, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  %indvars.iv.next71 = add nuw nsw i64 %indvars.iv70, 1
  %exitcond74.not = icmp eq i64 %indvars.iv.next71, %wide.trip.count73
  br i1 %exitcond74.not, label %._crit_edge, label %.lr.ph54, !llvm.loop !13

._crit_edge59:                                    ; preds = %69, %._crit_edge.thread, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  ret void

.lr.ph58:                                         ; preds = %._crit_edge, %69
  %storemerge56 = phi i32 [ %71, %69 ], [ 0, %._crit_edge ]
  %59 = sext i32 %storemerge56 to i64
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %59) #4
  %61 = load i32, ptr %60, align 4, !tbaa !5
  %62 = icmp eq i32 %61, 1
  br i1 %62, label %63, label %69

63:                                               ; preds = %.lr.ph58
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %11) #4
  store i32 %31, ptr %11, align 4, !tbaa !5
  %64 = invoke i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %65 unwind label %67

65:                                               ; preds = %63
  store i64 %64, ptr %10, align 8
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(8) %10)
          to label %66 unwind label %67

66:                                               ; preds = %65
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #4
  br label %69

67:                                               ; preds = %65, %63
  %68 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  br label %72

69:                                               ; preds = %.lr.ph58, %66
  %70 = load i32, ptr %9, align 4, !tbaa !5
  %71 = add nsw i32 %70, 1
  store i32 %71, ptr %9, align 4, !tbaa !5
  %.not40.not = icmp slt i32 %70, %13
  br i1 %.not40.not, label %.lr.ph58, label %._crit_edge59, !llvm.loop !14

72:                                               ; preds = %67, %52
  %.pn = phi { ptr, i32 } [ %53, %52 ], [ %68, %67 ]
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  br label %73

73:                                               ; preds = %72, %19
  %.pn.pn = phi { ptr, i32 } [ %.pn, %72 ], [ %20, %19 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 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 #2 align 2

; 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 #2

; 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 #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #3

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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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 = distinct !{!11, !10}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}


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