; LLVM IR from tangjz/acm-icpc :: leetcode/extra (DD_2020009-一元一次方程求根)

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

%"class.std::basic_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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [59 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [104 x i8], align 1
@__PRETTY_FUNCTION__.main = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca i8, align 1
  %10 = alloca i64, align 8
  %11 = alloca double, align 8
  %12 = alloca double, align 8
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = alloca %"class.std::__cxx11::basic_string", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #10
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #10
  %15 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %16 unwind label %26

16:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #10
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #10
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #10
  %17 = load ptr, ptr %6, align 8, !tbaa !9
  %18 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %17) #10
  %19 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %18, ptr %19, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #10
  %20 = load ptr, ptr %6, align 8, !tbaa !9
  %21 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %20) #10
  %22 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %21, ptr %22, align 8
  br label %23

23:                                               ; preds = %48, %16
  %24 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #10
  br i1 %24, label %30, label %25

25:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #10
  br label %50

26:                                               ; preds = %0
  %27 = landingpad { ptr, i32 }
          cleanup
  %28 = extractvalue { ptr, i32 } %27, 0
  store ptr %28, ptr %3, align 8
  %29 = extractvalue { ptr, i32 } %27, 1
  store i32 %29, ptr %4, align 4
  br label %159

30:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #10
  %31 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #10
  %32 = load i8, ptr %31, align 1, !tbaa !11
  store i8 %32, ptr %9, align 1, !tbaa !11
  %33 = load i8, ptr %9, align 1, !tbaa !11
  %34 = sext i8 %33 to i32
  %35 = icmp ne i32 %34, 32
  br i1 %35, label %36, label %47

36:                                               ; preds = %30
  %37 = load i8, ptr %9, align 1, !tbaa !11
  %38 = load i32, ptr %5, align 4, !tbaa !5
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %5, align 4, !tbaa !5
  %40 = sext i32 %38 to i64
  %41 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %40)
          to label %42 unwind label %43

42:                                               ; preds = %36
  store i8 %37, ptr %41, align 1, !tbaa !11
  br label %47

43:                                               ; preds = %36
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %3, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #10
  br label %158

47:                                               ; preds = %42, %30
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #10
  br label %48

48:                                               ; preds = %47
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #10
  br label %23

50:                                               ; preds = %25
  %51 = load i32, ptr %5, align 4, !tbaa !5
  %52 = icmp sge i32 %51, 2
  br i1 %52, label %53, label %71

53:                                               ; preds = %50
  %54 = load i32, ptr %5, align 4, !tbaa !5
  %55 = sub nsw i32 %54, 1
  %56 = sext i32 %55 to i64
  %57 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %56)
          to label %58 unwind label %75

58:                                               ; preds = %53
  %59 = load i8, ptr %57, align 1, !tbaa !11
  %60 = sext i8 %59 to i32
  %61 = icmp eq i32 %60, 48
  br i1 %61, label %62, label %71

62:                                               ; preds = %58
  %63 = load i32, ptr %5, align 4, !tbaa !5
  %64 = sub nsw i32 %63, 2
  %65 = sext i32 %64 to i64
  %66 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %65)
          to label %67 unwind label %75

67:                                               ; preds = %62
  %68 = load i8, ptr %66, align 1, !tbaa !11
  %69 = sext i8 %68 to i32
  %70 = icmp eq i32 %69, 61
  br label %71

71:                                               ; preds = %67, %58, %50
  %72 = phi i1 [ false, %58 ], [ false, %50 ], [ %70, %67 ]
  br i1 %72, label %73, label %74

73:                                               ; preds = %71
  br label %80

74:                                               ; preds = %71
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 13, ptr noundef @__PRETTY_FUNCTION__.main) #11
  unreachable

75:                                               ; preds = %80, %62, %53
  %76 = landingpad { ptr, i32 }
          cleanup
  %77 = extractvalue { ptr, i32 } %76, 0
  store ptr %77, ptr %3, align 8
  %78 = extractvalue { ptr, i32 } %76, 1
  store i32 %78, ptr %4, align 4
  br label %158

79:                                               ; No predecessors!
  br label %80

80:                                               ; preds = %79, %73
  %81 = load i32, ptr %5, align 4, !tbaa !5
  %82 = sub nsw i32 %81, 2
  %83 = sext i32 %82 to i64
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %83)
          to label %84 unwind label %75

84:                                               ; preds = %80
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #10
  %85 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findEcm(ptr noundef nonnull align 8 dereferenceable(32) %2, i8 noundef signext 120, i64 noundef 0) #10
  store i64 %85, ptr %10, align 8, !tbaa !12
  %86 = load i64, ptr %10, align 8, !tbaa !12
  %87 = icmp ne i64 %86, -1
  br i1 %87, label %88, label %89

88:                                               ; preds = %84
  br label %91

89:                                               ; preds = %84
  call void @__assert_fail(ptr noundef @.str.2, ptr noundef @.str.1, i32 noundef 16, ptr noundef @__PRETTY_FUNCTION__.main) #11
  unreachable

90:                                               ; No predecessors!
  br label %91

91:                                               ; preds = %90, %88
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #10
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #10
  call void @llvm.lifetime.start.p0(i64 32, ptr %13) #10
  %92 = load i64, ptr %10, align 8, !tbaa !12
  %93 = add i64 %92, 1
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %13, ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %93, i64 noundef -1)
          to label %94 unwind label %101

94:                                               ; preds = %91
  %95 = invoke noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32) %13, ptr noundef null)
          to label %96 unwind label %105

96:                                               ; preds = %94
  %97 = fpext float %95 to double
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #10
  call void @llvm.lifetime.end.p0(i64 32, ptr %13) #10
  store double %97, ptr %12, align 8, !tbaa !14
  %98 = load i64, ptr %10, align 8, !tbaa !12
  %99 = icmp eq i64 %98, 0
  br i1 %99, label %100, label %110

100:                                              ; preds = %96
  store double 1.000000e+00, ptr %11, align 8, !tbaa !14
  br label %149

101:                                              ; preds = %91
  %102 = landingpad { ptr, i32 }
          cleanup
  %103 = extractvalue { ptr, i32 } %102, 0
  store ptr %103, ptr %3, align 8
  %104 = extractvalue { ptr, i32 } %102, 1
  store i32 %104, ptr %4, align 4
  br label %109

105:                                              ; preds = %94
  %106 = landingpad { ptr, i32 }
          cleanup
  %107 = extractvalue { ptr, i32 } %106, 0
  store ptr %107, ptr %3, align 8
  %108 = extractvalue { ptr, i32 } %106, 1
  store i32 %108, ptr %4, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #10
  br label %109

109:                                              ; preds = %105, %101
  call void @llvm.lifetime.end.p0(i64 32, ptr %13) #10
  br label %157

110:                                              ; preds = %96
  %111 = load i64, ptr %10, align 8, !tbaa !12
  %112 = icmp eq i64 %111, 1
  br i1 %112, label %113, label %133

113:                                              ; preds = %110
  %114 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
          to label %115 unwind label %129

115:                                              ; preds = %113
  %116 = load i8, ptr %114, align 1, !tbaa !11
  %117 = sext i8 %116 to i32
  %118 = call i32 @isdigit(i32 noundef %117) #12
  %119 = icmp ne i32 %118, 0
  br i1 %119, label %133, label %120

120:                                              ; preds = %115
  %121 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
          to label %122 unwind label %129

122:                                              ; preds = %120
  %123 = load i8, ptr %121, align 1, !tbaa !11
  %124 = sext i8 %123 to i32
  %125 = icmp eq i32 %124, 45
  %126 = zext i1 %125 to i64
  %127 = select i1 %125, i32 -1, i32 1
  %128 = sitofp i32 %127 to double
  store double %128, ptr %11, align 8, !tbaa !14
  br label %148

129:                                              ; preds = %149, %120, %113
  %130 = landingpad { ptr, i32 }
          cleanup
  %131 = extractvalue { ptr, i32 } %130, 0
  store ptr %131, ptr %3, align 8
  %132 = extractvalue { ptr, i32 } %130, 1
  store i32 %132, ptr %4, align 4
  br label %157

133:                                              ; preds = %115, %110
  call void @llvm.lifetime.start.p0(i64 32, ptr %14) #10
  %134 = load i64, ptr %10, align 8, !tbaa !12
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %14, ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0, i64 noundef %134)
          to label %135 unwind label %139

135:                                              ; preds = %133
  %136 = invoke noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32) %14, ptr noundef null)
          to label %137 unwind label %143

137:                                              ; preds = %135
  %138 = fpext float %136 to double
  store double %138, ptr %11, align 8, !tbaa !14
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %14) #10
  call void @llvm.lifetime.end.p0(i64 32, ptr %14) #10
  br label %148

139:                                              ; preds = %133
  %140 = landingpad { ptr, i32 }
          cleanup
  %141 = extractvalue { ptr, i32 } %140, 0
  store ptr %141, ptr %3, align 8
  %142 = extractvalue { ptr, i32 } %140, 1
  store i32 %142, ptr %4, align 4
  br label %147

143:                                              ; preds = %135
  %144 = landingpad { ptr, i32 }
          cleanup
  %145 = extractvalue { ptr, i32 } %144, 0
  store ptr %145, ptr %3, align 8
  %146 = extractvalue { ptr, i32 } %144, 1
  store i32 %146, ptr %4, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %14) #10
  br label %147

147:                                              ; preds = %143, %139
  call void @llvm.lifetime.end.p0(i64 32, ptr %14) #10
  br label %157

148:                                              ; preds = %137, %122
  br label %149

149:                                              ; preds = %148, %100
  %150 = load double, ptr %12, align 8, !tbaa !14
  %151 = fneg double %150
  %152 = load double, ptr %11, align 8, !tbaa !14
  %153 = fdiv double %151, %152
  %154 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.3, double noundef %153)
          to label %155 unwind label %129

155:                                              ; preds = %149
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #10
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #10
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #10
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #10
  %156 = load i32, ptr %1, align 4
  ret i32 %156

157:                                              ; preds = %147, %129, %109
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #10
  br label %158

158:                                              ; preds = %157, %75, %43
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #10
  br label %159

159:                                              ; preds = %158, %26
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #10
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #10
  br label %160

160:                                              ; preds = %159
  %161 = load ptr, ptr %3, align 8
  %162 = load i32, ptr %4, align 4
  %163 = insertvalue { ptr, i32 } poison, ptr %161, 0
  %164 = insertvalue { ptr, i32 } %163, i32 %162, 1
  resume { ptr, i32 } %164
}

; 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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; 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 noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #5

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #6 align 2

; Function Attrs: nounwind
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findEcm(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext, i64 noundef) #7

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #3

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #6 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isdigit(i32 noundef) #8

declare i32 @printf(ptr noundef, ...) #9

attributes #0 = { 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 #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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #8 = { nounwind willreturn memory(read) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #9 = { "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 #10 = { nounwind }
attributes #11 = { noreturn nounwind }
attributes #12 = { nounwind willreturn memory(read) }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"double", !7, i64 0}


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

%"class.std::basic_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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [59 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [104 x i8], align 1
@__PRETTY_FUNCTION__.main = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #9
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #9
  %6 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %7 unwind label %12

7:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #9
  %8 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #9
  store ptr %8, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #9
  %9 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #9
  store ptr %9, ptr %3, align 8
  %10 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #9
  br i1 %10, label %.lr.ph, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #9
  br label %.critedge

._crit_edge:                                      ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #9
  %11 = icmp sgt i32 %.125, 1
  br i1 %11, label %23, label %.critedge

12:                                               ; preds = %0
  %13 = landingpad { ptr, i32 }
          cleanup
  br label %75

.lr.ph:                                           ; preds = %7, %20
  %.02434 = phi i32 [ %.125, %20 ], [ 0, %7 ]
  %14 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #9
  %15 = load i8, ptr %14, align 1, !tbaa !5
  %.not33 = icmp eq i8 %15, 32
  br i1 %.not33, label %20, label %16

16:                                               ; preds = %.lr.ph
  %17 = add nsw i32 %.02434, 1
  %18 = sext i32 %.02434 to i64
  %19 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %18)
  store i8 %15, ptr %19, align 1, !tbaa !5
  br label %20

20:                                               ; preds = %16, %.lr.ph
  %.125 = phi i32 [ %17, %16 ], [ %.02434, %.lr.ph ]
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #9
  %22 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #9
  br i1 %22, label %.lr.ph, label %._crit_edge

23:                                               ; preds = %._crit_edge
  %24 = add nsw i32 %.125, -1
  %25 = zext nneg i32 %24 to i64
  %26 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %25)
  %27 = load i8, ptr %26, align 1, !tbaa !5
  %28 = icmp eq i8 %27, 48
  br i1 %28, label %29, label %.critedge

29:                                               ; preds = %23
  %30 = add nsw i32 %.125, -2
  %31 = zext nneg i32 %30 to i64
  %32 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %31)
  %33 = load i8, ptr %32, align 1, !tbaa !5
  %34 = icmp eq i8 %33, 61
  br i1 %34, label %37, label %.critedge

.critedge:                                        ; preds = %._crit_edge.thread, %23, %._crit_edge, %29
  call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 13, ptr noundef nonnull @__PRETTY_FUNCTION__.main) #10
  unreachable

35:                                               ; preds = %37
  %36 = landingpad { ptr, i32 }
          cleanup
  br label %75

37:                                               ; preds = %29
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %31)
          to label %38 unwind label %35

38:                                               ; preds = %37
  %39 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findEcm(ptr noundef nonnull align 8 dereferenceable(32) %1, i8 noundef signext 120, i64 noundef 0) #9
  %.not = icmp eq i64 %39, -1
  br i1 %.not, label %40, label %41

40:                                               ; preds = %38
  call void @__assert_fail(ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.1, i32 noundef 16, ptr noundef nonnull @__PRETTY_FUNCTION__.main) #10
  unreachable

41:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #9
  %42 = add nuw i64 %39, 1
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %4, ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %42, i64 noundef -1)
          to label %43 unwind label %46

43:                                               ; preds = %41
  %44 = invoke noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef null)
          to label %45 unwind label %48

45:                                               ; preds = %43
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #9
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #9
  switch i64 %39, label %60 [
    i64 0, label %70
    i64 1, label %51
  ]

46:                                               ; preds = %41
  %47 = landingpad { ptr, i32 }
          cleanup
  br label %50

48:                                               ; preds = %43
  %49 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #9
  br label %50

50:                                               ; preds = %48, %46
  %.pn = phi { ptr, i32 } [ %49, %48 ], [ %47, %46 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #9
  br label %75

51:                                               ; preds = %45
  %52 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %53 = load i8, ptr %52, align 1, !tbaa !5
  %54 = sext i8 %53 to i32
  %isdigittmp = add nsw i32 %54, -48
  %isdigit = icmp ult i32 %isdigittmp, 10
  br i1 %isdigit, label %60, label %55

55:                                               ; preds = %51
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %57 = load i8, ptr %56, align 1, !tbaa !5
  %58 = icmp eq i8 %57, 45
  %59 = select i1 %58, double -1.000000e+00, double 1.000000e+00
  br label %70

60:                                               ; preds = %45, %51
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #9
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %5, ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0, i64 noundef %39)
          to label %61 unwind label %65

61:                                               ; preds = %60
  %62 = invoke noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef null)
          to label %63 unwind label %67

63:                                               ; preds = %61
  %64 = fpext float %62 to double
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #9
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #9
  br label %70

65:                                               ; preds = %60
  %66 = landingpad { ptr, i32 }
          cleanup
  br label %69

67:                                               ; preds = %61
  %68 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #9
  br label %69

69:                                               ; preds = %67, %65
  %.pn28 = phi { ptr, i32 } [ %68, %67 ], [ %66, %65 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #9
  br label %75

70:                                               ; preds = %45, %55, %63
  %.0 = phi double [ %64, %63 ], [ %59, %55 ], [ 1.000000e+00, %45 ]
  %71 = fpext float %44 to double
  %72 = fneg double %71
  %73 = fdiv double %72, %.0
  %74 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, double noundef %73)
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #9
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #9
  ret i32 0

75:                                               ; preds = %35, %69, %50, %12
  %.pn28.pn.pn.pn = phi { ptr, i32 } [ %13, %12 ], [ %36, %35 ], [ %.pn28, %69 ], [ %.pn, %50 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #9
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #9
  resume { ptr, i32 } %.pn28.pn.pn.pn
}

; 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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #2 align 2

; 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 noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #6 align 2

; Function Attrs: nounwind
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findEcm(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext, i64 noundef) local_unnamed_addr #7

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef float @_ZNSt7__cxx114stofERKNS_12basic_stringIcSt11char_traitsIcESaIcEEEPm(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #6 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #8

attributes #0 = { 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 #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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #8 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #9 = { nounwind }
attributes #10 = { noreturn 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


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