; LLVM IR from MinaFaried3/Assiut-University-Training---Newcomers :: m-sheet10_general_hard (A-PalindromesReplace)

; 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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z12isPalindRomeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) #0

; 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 noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 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 i8, align 1
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = 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) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %10 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_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 %11 unwind label %21

11:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  store i8 1, ptr %5, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  store i32 0, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  %12 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %13 = sub i64 %12, 1
  %14 = trunc i64 %13 to i32
  store i32 %14, ptr %7, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %140, %11
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %19 = icmp ult i64 %17, %18
  br i1 %19, label %25, label %20

20:                                               ; preds = %15
  store i32 2, ptr %8, align 4
  br label %145

21:                                               ; preds = %0
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %3, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %4, align 4
  br label %170

25:                                               ; preds = %15
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %27)
          to label %29 unwind label %56

29:                                               ; preds = %25
  %30 = load i8, ptr %28, align 1, !tbaa !11
  %31 = sext i8 %30 to i32
  %32 = icmp ne i32 %31, 63
  br i1 %32, label %33, label %60

33:                                               ; preds = %29
  %34 = load i32, ptr %7, align 4, !tbaa !9
  %35 = sext i32 %34 to i64
  %36 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %35)
          to label %37 unwind label %56

37:                                               ; preds = %33
  %38 = load i8, ptr %36, align 1, !tbaa !11
  %39 = sext i8 %38 to i32
  %40 = icmp ne i32 %39, 63
  br i1 %40, label %41, label %60

41:                                               ; preds = %37
  %42 = load i32, ptr %7, align 4, !tbaa !9
  %43 = sext i32 %42 to i64
  %44 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %43)
          to label %45 unwind label %56

45:                                               ; preds = %41
  %46 = load i8, ptr %44, align 1, !tbaa !11
  %47 = sext i8 %46 to i32
  %48 = load i32, ptr %6, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  %50 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %49)
          to label %51 unwind label %56

51:                                               ; preds = %45
  %52 = load i8, ptr %50, align 1, !tbaa !11
  %53 = sext i8 %52 to i32
  %54 = icmp ne i32 %47, %53
  br i1 %54, label %55, label %60

55:                                               ; preds = %51
  store i8 0, ptr %5, align 1, !tbaa !5
  store i32 2, ptr %8, align 4
  br label %145

56:                                               ; preds = %132, %128, %120, %112, %106, %102, %94, %86, %80, %76, %68, %60, %45, %41, %33, %25
  %57 = landingpad { ptr, i32 }
          cleanup
  %58 = extractvalue { ptr, i32 } %57, 0
  store ptr %58, ptr %3, align 8
  %59 = extractvalue { ptr, i32 } %57, 1
  store i32 %59, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %169

60:                                               ; preds = %51, %37, %29
  %61 = load i32, ptr %6, align 4, !tbaa !9
  %62 = sext i32 %61 to i64
  %63 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %62)
          to label %64 unwind label %56

64:                                               ; preds = %60
  %65 = load i8, ptr %63, align 1, !tbaa !11
  %66 = sext i8 %65 to i32
  %67 = icmp ne i32 %66, 63
  br i1 %67, label %68, label %86

68:                                               ; preds = %64
  %69 = load i32, ptr %7, align 4, !tbaa !9
  %70 = sext i32 %69 to i64
  %71 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %70)
          to label %72 unwind label %56

72:                                               ; preds = %68
  %73 = load i8, ptr %71, align 1, !tbaa !11
  %74 = sext i8 %73 to i32
  %75 = icmp eq i32 %74, 63
  br i1 %75, label %76, label %86

76:                                               ; preds = %72
  %77 = load i32, ptr %6, align 4, !tbaa !9
  %78 = sext i32 %77 to i64
  %79 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %78)
          to label %80 unwind label %56

80:                                               ; preds = %76
  %81 = load i8, ptr %79, align 1, !tbaa !11
  %82 = load i32, ptr %7, align 4, !tbaa !9
  %83 = sext i32 %82 to i64
  %84 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %83)
          to label %85 unwind label %56

85:                                               ; preds = %80
  store i8 %81, ptr %84, align 1, !tbaa !11
  br label %139

86:                                               ; preds = %72, %64
  %87 = load i32, ptr %6, align 4, !tbaa !9
  %88 = sext i32 %87 to i64
  %89 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %88)
          to label %90 unwind label %56

90:                                               ; preds = %86
  %91 = load i8, ptr %89, align 1, !tbaa !11
  %92 = sext i8 %91 to i32
  %93 = icmp eq i32 %92, 63
  br i1 %93, label %94, label %112

94:                                               ; preds = %90
  %95 = load i32, ptr %7, align 4, !tbaa !9
  %96 = sext i32 %95 to i64
  %97 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %96)
          to label %98 unwind label %56

98:                                               ; preds = %94
  %99 = load i8, ptr %97, align 1, !tbaa !11
  %100 = sext i8 %99 to i32
  %101 = icmp ne i32 %100, 63
  br i1 %101, label %102, label %112

102:                                              ; preds = %98
  %103 = load i32, ptr %7, align 4, !tbaa !9
  %104 = sext i32 %103 to i64
  %105 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %104)
          to label %106 unwind label %56

106:                                              ; preds = %102
  %107 = load i8, ptr %105, align 1, !tbaa !11
  %108 = load i32, ptr %6, align 4, !tbaa !9
  %109 = sext i32 %108 to i64
  %110 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %109)
          to label %111 unwind label %56

111:                                              ; preds = %106
  store i8 %107, ptr %110, align 1, !tbaa !11
  br label %138

112:                                              ; preds = %98, %90
  %113 = load i32, ptr %6, align 4, !tbaa !9
  %114 = sext i32 %113 to i64
  %115 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %114)
          to label %116 unwind label %56

116:                                              ; preds = %112
  %117 = load i8, ptr %115, align 1, !tbaa !11
  %118 = sext i8 %117 to i32
  %119 = icmp eq i32 %118, 63
  br i1 %119, label %120, label %137

120:                                              ; preds = %116
  %121 = load i32, ptr %7, align 4, !tbaa !9
  %122 = sext i32 %121 to i64
  %123 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %122)
          to label %124 unwind label %56

124:                                              ; preds = %120
  %125 = load i8, ptr %123, align 1, !tbaa !11
  %126 = sext i8 %125 to i32
  %127 = icmp eq i32 %126, 63
  br i1 %127, label %128, label %137

128:                                              ; preds = %124
  %129 = load i32, ptr %6, align 4, !tbaa !9
  %130 = sext i32 %129 to i64
  %131 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %130)
          to label %132 unwind label %56

132:                                              ; preds = %128
  store i8 97, ptr %131, align 1, !tbaa !11
  %133 = load i32, ptr %7, align 4, !tbaa !9
  %134 = sext i32 %133 to i64
  %135 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %134)
          to label %136 unwind label %56

136:                                              ; preds = %132
  store i8 97, ptr %135, align 1, !tbaa !11
  br label %137

137:                                              ; preds = %136, %124, %116
  br label %138

138:                                              ; preds = %137, %111
  br label %139

139:                                              ; preds = %138, %85
  br label %140

140:                                              ; preds = %139
  %141 = load i32, ptr %6, align 4, !tbaa !9
  %142 = add nsw i32 %141, 1
  store i32 %142, ptr %6, align 4, !tbaa !9
  %143 = load i32, ptr %7, align 4, !tbaa !9
  %144 = add nsw i32 %143, -1
  store i32 %144, ptr %7, align 4, !tbaa !9
  br label %15, !llvm.loop !12

145:                                              ; preds = %55, %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %146

146:                                              ; preds = %145
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %147 unwind label %156

147:                                              ; preds = %146
  %148 = invoke noundef zeroext i1 @_Z12isPalindRomeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %9)
          to label %149 unwind label %160

149:                                              ; preds = %147
  %150 = zext i1 %148 to i8
  store i8 %150, ptr %5, align 1, !tbaa !5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  %151 = load i8, ptr %5, align 1, !tbaa !5, !range !14, !noundef !15
  %152 = trunc i8 %151 to i1
  br i1 %152, label %153, label %164

153:                                              ; preds = %149
  %154 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %155 unwind label %156

155:                                              ; preds = %153
  br label %167

156:                                              ; preds = %164, %153, %146
  %157 = landingpad { ptr, i32 }
          cleanup
  %158 = extractvalue { ptr, i32 } %157, 0
  store ptr %158, ptr %3, align 8
  %159 = extractvalue { ptr, i32 } %157, 1
  store i32 %159, ptr %4, align 4
  br label %169

160:                                              ; preds = %147
  %161 = landingpad { ptr, i32 }
          cleanup
  %162 = extractvalue { ptr, i32 } %161, 0
  store ptr %162, ptr %3, align 8
  %163 = extractvalue { ptr, i32 } %161, 1
  store i32 %163, ptr %4, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  br label %169

164:                                              ; preds = %149
  %165 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
          to label %166 unwind label %156

166:                                              ; preds = %164
  br label %167

167:                                              ; preds = %166, %155
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  %168 = load i32, ptr %1, align 4
  ret i32 %168

169:                                              ; preds = %160, %156, %56
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  br label %170

170:                                              ; preds = %169, %21
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  br label %171

171:                                              ; preds = %170
  %172 = load ptr, ptr %3, align 8
  %173 = load i32, ptr %4, align 4
  %174 = insertvalue { ptr, i32 } poison, ptr %172, 0
  %175 = insertvalue { ptr, i32 } %174, i32 %173, 1
  resume { ptr, i32 } %175
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #5

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

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 = { 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 #4 = { "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 = { 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 #6 = { 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 = !{!"bool", !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"}
!14 = !{i8 0, i8 2}
!15 = !{}


; 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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z12isPalindRomeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) local_unnamed_addr #0

; 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 noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(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

; 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 norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %3 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_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 %4 unwind label %8

4:                                                ; preds = %0
  %5 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %6 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %.not37 = icmp eq i64 %6, 0
  br i1 %.not37, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %4
  %7 = trunc i64 %5 to i32
  br label %.lr.ph

8:                                                ; preds = %0
  %9 = landingpad { ptr, i32 }
          cleanup
  br label %70

.lr.ph:                                           ; preds = %.lr.ph.preheader, %55
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %55 ]
  %.035.in = phi i32 [ %7, %.lr.ph.preheader ], [ %.035, %55 ]
  %.035 = add i32 %.035.in, -1
  %10 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %11 = load i8, ptr %10, align 1, !tbaa !5
  %.not = icmp eq i8 %11, 63
  br i1 %.not, label %21, label %12

12:                                               ; preds = %.lr.ph
  %13 = sext i32 %.035 to i64
  %14 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %13)
  %15 = load i8, ptr %14, align 1, !tbaa !5
  %.not27 = icmp eq i8 %15, 63
  br i1 %.not27, label %21, label %16

16:                                               ; preds = %12
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %13)
  %18 = load i8, ptr %17, align 1, !tbaa !5
  %19 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %20 = load i8, ptr %19, align 1, !tbaa !5
  %.not28 = icmp eq i8 %18, %20
  br i1 %.not28, label %21, label %._crit_edge

21:                                               ; preds = %16, %12, %.lr.ph
  %22 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %23 = load i8, ptr %22, align 1, !tbaa !5
  %.not29 = icmp eq i8 %23, 63
  br i1 %.not29, label %32, label %24

24:                                               ; preds = %21
  %25 = sext i32 %.035 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, 63
  br i1 %28, label %29, label %32

29:                                               ; preds = %24
  %30 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %31 = load i8, ptr %30, align 1, !tbaa !5
  br label %.sink.split

32:                                               ; preds = %24, %21
  %33 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %34 = load i8, ptr %33, align 1, !tbaa !5
  %35 = icmp eq i8 %34, 63
  br i1 %35, label %36, label %43

36:                                               ; preds = %32
  %37 = sext i32 %.035 to i64
  %38 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %37)
  %39 = load i8, ptr %38, align 1, !tbaa !5
  %.not30 = icmp eq i8 %39, 63
  br i1 %.not30, label %43, label %40

40:                                               ; preds = %36
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %37)
  %42 = load i8, ptr %41, align 1, !tbaa !5
  br label %.sink.split

43:                                               ; preds = %36, %32
  %44 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %45 = load i8, ptr %44, align 1, !tbaa !5
  %46 = icmp eq i8 %45, 63
  br i1 %46, label %47, label %55

47:                                               ; preds = %43
  %48 = sext i32 %.035 to i64
  %49 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %48)
  %50 = load i8, ptr %49, align 1, !tbaa !5
  %51 = icmp eq i8 %50, 63
  br i1 %51, label %52, label %55

52:                                               ; preds = %47
  %53 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  store i8 97, ptr %53, align 1, !tbaa !5
  br label %.sink.split

.sink.split:                                      ; preds = %40, %52, %29
  %.sink40 = phi i64 [ %25, %29 ], [ %48, %52 ], [ %indvars.iv, %40 ]
  %.sink = phi i8 [ %31, %29 ], [ 97, %52 ], [ %42, %40 ]
  %54 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.sink40)
  store i8 %.sink, ptr %54, align 1, !tbaa !5
  br label %55

55:                                               ; preds = %.sink.split, %43, %47
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %56 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %57 = icmp ugt i64 %56, %indvars.iv.next
  br i1 %57, label %.lr.ph, label %._crit_edge, !llvm.loop !8

._crit_edge:                                      ; preds = %55, %16, %4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %58 unwind label %63

58:                                               ; preds = %._crit_edge
  %59 = invoke noundef zeroext i1 @_Z12isPalindRomeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %2)
          to label %60 unwind label %65

60:                                               ; preds = %58
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  br i1 %59, label %61, label %67

61:                                               ; preds = %60
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %69 unwind label %63

63:                                               ; preds = %67, %61, %._crit_edge
  %64 = landingpad { ptr, i32 }
          cleanup
  br label %70

65:                                               ; preds = %58
  %66 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  br label %70

67:                                               ; preds = %60
  %68 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
          to label %69 unwind label %63

69:                                               ; preds = %67, %61
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  ret i32 0

70:                                               ; preds = %63, %65, %8
  %.pn.pn = phi { ptr, i32 } [ %9, %8 ], [ %64, %63 ], [ %66, %65 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_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 #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #5

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

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 = { 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 #4 = { "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 = { 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 #6 = { 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,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass