; LLVM IR from hanzohasashi33/Competetive_programming :: Geeks4Geeks/Stacks (balanced_Paranthesis)

; 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::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z10isbalancedNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca %"class.std::stack", align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i8, align 1
  %10 = alloca i8, align 1
  %11 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr %4) #4
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %146, %1
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = sext i32 %13 to i64
  %15 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %16 = icmp ult i64 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %12
  store i32 2, ptr %6, align 4
  br label %149

18:                                               ; preds = %12
  %19 = load i32, ptr %5, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %20)
          to label %22 unwind label %48

22:                                               ; preds = %18
  %23 = load i8, ptr %21, align 1, !tbaa !11
  %24 = sext i8 %23 to i32
  %25 = icmp eq i32 %24, 40
  br i1 %25, label %42, label %26

26:                                               ; preds = %22
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %28)
          to label %30 unwind label %48

30:                                               ; preds = %26
  %31 = load i8, ptr %29, align 1, !tbaa !11
  %32 = sext i8 %31 to i32
  %33 = icmp eq i32 %32, 91
  br i1 %33, label %42, label %34

34:                                               ; preds = %30
  %35 = load i32, ptr %5, align 4, !tbaa !9
  %36 = sext i32 %35 to i64
  %37 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %36)
          to label %38 unwind label %48

38:                                               ; preds = %34
  %39 = load i8, ptr %37, align 1, !tbaa !11
  %40 = sext i8 %39 to i32
  %41 = icmp eq i32 %40, 123
  br i1 %41, label %42, label %52

42:                                               ; preds = %38, %30, %22
  %43 = load i32, ptr %5, align 4, !tbaa !9
  %44 = sext i32 %43 to i64
  %45 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %44)
          to label %46 unwind label %48

46:                                               ; preds = %42
  invoke void @_ZNSt5stackIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80) %4, ptr noundef nonnull align 1 dereferenceable(1) %45)
          to label %47 unwind label %48

47:                                               ; preds = %46
  br label %146

48:                                               ; preds = %114, %85, %56, %52, %46, %42, %34, %26, %18
  %49 = landingpad { ptr, i32 }
          cleanup
  %50 = extractvalue { ptr, i32 } %49, 0
  store ptr %50, ptr %7, align 8
  %51 = extractvalue { ptr, i32 } %49, 1
  store i32 %51, ptr %8, align 4
  br label %151

52:                                               ; preds = %38
  %53 = invoke noundef zeroext i1 @_ZNKSt5stackIcSt5dequeIcSaIcEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %54 unwind label %48

54:                                               ; preds = %52
  br i1 %53, label %55, label %56

55:                                               ; preds = %54
  store i1 false, ptr %2, align 1
  store i32 1, ptr %6, align 4
  br label %149

56:                                               ; preds = %54
  %57 = load i32, ptr %5, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  %59 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %58)
          to label %60 unwind label %48

60:                                               ; preds = %56
  %61 = load i8, ptr %59, align 1, !tbaa !11
  %62 = sext i8 %61 to i32
  %63 = icmp eq i32 %62, 41
  br i1 %63, label %64, label %85

64:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  %65 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %66 unwind label %77

66:                                               ; preds = %64
  %67 = load i8, ptr %65, align 1, !tbaa !11
  store i8 %67, ptr %9, align 1, !tbaa !11
  invoke void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %68 unwind label %77

68:                                               ; preds = %66
  %69 = load i8, ptr %9, align 1, !tbaa !11
  %70 = sext i8 %69 to i32
  %71 = icmp eq i32 %70, 123
  br i1 %71, label %76, label %72

72:                                               ; preds = %68
  %73 = load i8, ptr %9, align 1, !tbaa !11
  %74 = sext i8 %73 to i32
  %75 = icmp eq i32 %74, 91
  br i1 %75, label %76, label %81

76:                                               ; preds = %72, %68
  store i1 false, ptr %2, align 1
  store i32 1, ptr %6, align 4
  br label %82

77:                                               ; preds = %66, %64
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %7, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  br label %151

81:                                               ; preds = %72
  store i32 0, ptr %6, align 4
  br label %82

82:                                               ; preds = %81, %76
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  %83 = load i32, ptr %6, align 4
  switch i32 %83, label %149 [
    i32 0, label %84
  ]

84:                                               ; preds = %82
  br label %145

85:                                               ; preds = %60
  %86 = load i32, ptr %5, align 4, !tbaa !9
  %87 = sext i32 %86 to i64
  %88 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %87)
          to label %89 unwind label %48

89:                                               ; preds = %85
  %90 = load i8, ptr %88, align 1, !tbaa !11
  %91 = sext i8 %90 to i32
  %92 = icmp eq i32 %91, 125
  br i1 %92, label %93, label %114

93:                                               ; preds = %89
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #4
  %94 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %95 unwind label %106

95:                                               ; preds = %93
  %96 = load i8, ptr %94, align 1, !tbaa !11
  store i8 %96, ptr %10, align 1, !tbaa !11
  invoke void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %97 unwind label %106

97:                                               ; preds = %95
  %98 = load i8, ptr %10, align 1, !tbaa !11
  %99 = sext i8 %98 to i32
  %100 = icmp eq i32 %99, 40
  br i1 %100, label %105, label %101

101:                                              ; preds = %97
  %102 = load i8, ptr %10, align 1, !tbaa !11
  %103 = sext i8 %102 to i32
  %104 = icmp eq i32 %103, 91
  br i1 %104, label %105, label %110

105:                                              ; preds = %101, %97
  store i1 false, ptr %2, align 1
  store i32 1, ptr %6, align 4
  br label %111

106:                                              ; preds = %95, %93
  %107 = landingpad { ptr, i32 }
          cleanup
  %108 = extractvalue { ptr, i32 } %107, 0
  store ptr %108, ptr %7, align 8
  %109 = extractvalue { ptr, i32 } %107, 1
  store i32 %109, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #4
  br label %151

110:                                              ; preds = %101
  store i32 0, ptr %6, align 4
  br label %111

111:                                              ; preds = %110, %105
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #4
  %112 = load i32, ptr %6, align 4
  switch i32 %112, label %149 [
    i32 0, label %113
  ]

113:                                              ; preds = %111
  br label %144

114:                                              ; preds = %89
  %115 = load i32, ptr %5, align 4, !tbaa !9
  %116 = sext i32 %115 to i64
  %117 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %116)
          to label %118 unwind label %48

118:                                              ; preds = %114
  %119 = load i8, ptr %117, align 1, !tbaa !11
  %120 = sext i8 %119 to i32
  %121 = icmp eq i32 %120, 93
  br i1 %121, label %122, label %143

122:                                              ; preds = %118
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #4
  %123 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %124 unwind label %135

124:                                              ; preds = %122
  %125 = load i8, ptr %123, align 1, !tbaa !11
  store i8 %125, ptr %11, align 1, !tbaa !11
  invoke void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %126 unwind label %135

126:                                              ; preds = %124
  %127 = load i8, ptr %11, align 1, !tbaa !11
  %128 = sext i8 %127 to i32
  %129 = icmp eq i32 %128, 123
  br i1 %129, label %134, label %130

130:                                              ; preds = %126
  %131 = load i8, ptr %11, align 1, !tbaa !11
  %132 = sext i8 %131 to i32
  %133 = icmp eq i32 %132, 40
  br i1 %133, label %134, label %139

134:                                              ; preds = %130, %126
  store i1 false, ptr %2, align 1
  store i32 1, ptr %6, align 4
  br label %140

135:                                              ; preds = %124, %122
  %136 = landingpad { ptr, i32 }
          cleanup
  %137 = extractvalue { ptr, i32 } %136, 0
  store ptr %137, ptr %7, align 8
  %138 = extractvalue { ptr, i32 } %136, 1
  store i32 %138, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #4
  br label %151

139:                                              ; preds = %130
  store i32 0, ptr %6, align 4
  br label %140

140:                                              ; preds = %139, %134
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #4
  %141 = load i32, ptr %6, align 4
  switch i32 %141, label %149 [
    i32 0, label %142
  ]

142:                                              ; preds = %140
  br label %143

143:                                              ; preds = %142, %118
  br label %144

144:                                              ; preds = %143, %113
  br label %145

145:                                              ; preds = %144, %84
  br label %146

146:                                              ; preds = %145, %47
  %147 = load i32, ptr %5, align 4, !tbaa !9
  %148 = add nsw i32 %147, 1
  store i32 %148, ptr %5, align 4, !tbaa !9
  br label %12, !llvm.loop !12

149:                                              ; preds = %140, %111, %82, %55, %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  %150 = load i32, ptr %6, align 4
  switch i32 %150, label %159 [
    i32 2, label %152
  ]

151:                                              ; preds = %135, %106, %77, %48
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %161

152:                                              ; preds = %149
  %153 = invoke noundef zeroext i1 @_ZNKSt5stackIcSt5dequeIcSaIcEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %154 unwind label %155

154:                                              ; preds = %152
  store i1 %153, ptr %2, align 1
  store i32 1, ptr %6, align 4
  br label %159

155:                                              ; preds = %152
  %156 = landingpad { ptr, i32 }
          cleanup
  %157 = extractvalue { ptr, i32 } %156, 0
  store ptr %157, ptr %7, align 8
  %158 = extractvalue { ptr, i32 } %156, 1
  store i32 %158, ptr %8, align 4
  br label %161

159:                                              ; preds = %154, %149
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %4) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %4) #4
  %160 = load i1, ptr %2, align 1
  ret i1 %160

161:                                              ; preds = %155, %151
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %4) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %4) #4
  br label %162

162:                                              ; preds = %161
  %163 = load ptr, ptr %7, align 8
  %164 = load i32, ptr %8, align 4
  %165 = insertvalue { ptr, i32 } poison, ptr %163, 0
  %166 = insertvalue { ptr, i32 } %165, i32 %164, 1
  resume { ptr, i32 } %166
}

; 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 void @_ZNSt5stackIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 1 dereferenceable(1)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIcSt5dequeIcSaIcEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #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: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

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


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

%"class.std::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z10isbalancedNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::stack", align 8
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %2) #4
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %3 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %.not40.not = icmp eq i64 %3, 0
  br i1 %.not40.not, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %43
  %indvars.iv = phi i64 [ %indvars.iv.next, %43 ], [ 0, %1 ]
  %4 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %5 = load i8, ptr %4, align 1, !tbaa !5
  %6 = icmp eq i8 %5, 40
  br i1 %6, label %15, label %7

7:                                                ; preds = %.lr.ph
  %8 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %9 = load i8, ptr %8, align 1, !tbaa !5
  %10 = icmp eq i8 %9, 91
  br i1 %10, label %15, label %11

11:                                               ; preds = %7
  %12 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = icmp eq i8 %13, 123
  br i1 %14, label %15, label %19

15:                                               ; preds = %11, %7, %.lr.ph
  %16 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  invoke void @_ZNSt5stackIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 1 dereferenceable(1) %16)
          to label %43 unwind label %17

17:                                               ; preds = %15
  %18 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #4
  resume { ptr, i32 } %18

19:                                               ; preds = %11
  %20 = call noundef zeroext i1 @_ZNKSt5stackIcSt5dequeIcSaIcEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br i1 %20, label %.loopexit, label %21

21:                                               ; preds = %19
  %22 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %23 = load i8, ptr %22, align 1, !tbaa !5
  %24 = icmp eq i8 %23, 41
  br i1 %24, label %25, label %29

25:                                               ; preds = %21
  %26 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %27 = load i8, ptr %26, align 1, !tbaa !5
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %28 = and i8 %27, -33
  %or.cond.not = icmp eq i8 %28, 91
  br i1 %or.cond.not, label %.loopexit, label %43

29:                                               ; preds = %21
  %30 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %31 = load i8, ptr %30, align 1, !tbaa !5
  %32 = icmp eq i8 %31, 125
  br i1 %32, label %33, label %36

33:                                               ; preds = %29
  %34 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %35 = load i8, ptr %34, align 1, !tbaa !5
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  switch i8 %35, label %43 [
    i8 91, label %.loopexit
    i8 40, label %.loopexit
  ]

36:                                               ; preds = %29
  %37 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %38 = load i8, ptr %37, align 1, !tbaa !5
  %39 = icmp eq i8 %38, 93
  br i1 %39, label %40, label %43

40:                                               ; preds = %36
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %42 = load i8, ptr %41, align 1, !tbaa !5
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  switch i8 %42, label %43 [
    i8 123, label %.loopexit
    i8 40, label %.loopexit
  ]

43:                                               ; preds = %40, %33, %25, %36, %15
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %44 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %.not = icmp ugt i64 %44, %indvars.iv.next
  br i1 %.not, label %.lr.ph, label %.critedge, !llvm.loop !8

.critedge:                                        ; preds = %43, %1
  %45 = call noundef zeroext i1 @_ZNKSt5stackIcSt5dequeIcSaIcEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br label %.loopexit

.loopexit:                                        ; preds = %25, %19, %33, %33, %40, %40, %.critedge
  %.6 = phi i1 [ %45, %.critedge ], [ false, %40 ], [ false, %40 ], [ false, %33 ], [ false, %33 ], [ false, %19 ], [ false, %25 ]
  call void @_ZNSt5stackIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #4
  ret i1 %.6
}

; 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 void @_ZNSt5stackIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIcSt5dequeIcSaIcEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt5stackIcSt5dequeIcSaIcEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIcSt5dequeIcSaIcEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) 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: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

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


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