; LLVM IR from ravireddy07/cpp-book :: src/Permutation (largest-permutation)

; 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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::unordered_map", align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #9
  %18 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %18, ptr noundef nonnull align 4 dereferenceable(4) %7)
  call void @llvm.lifetime.start.p0(i64 56, ptr %8) #9
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %8) #9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #9
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %21, i64 4)
  %23 = extractvalue { i64, i1 } %22, 1
  %24 = extractvalue { i64, i1 } %22, 0
  %25 = select i1 %23, i64 -1, i64 %24
  %26 = invoke noalias noundef nonnull ptr @_Znam(i64 noundef %25) #10
          to label %27 unwind label %33

27:                                               ; preds = %2
  store ptr %26, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #9
  store i32 0, ptr %12, align 4, !tbaa !5
  br label %28

28:                                               ; preds = %51, %27
  %29 = load i32, ptr %12, align 4, !tbaa !5
  %30 = load i32, ptr %6, align 4, !tbaa !5
  %31 = icmp slt i32 %29, %30
  br i1 %31, label %37, label %32

32:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #9
  br label %58

33:                                               ; preds = %2
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %10, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %11, align 4
  br label %142

37:                                               ; preds = %28
  %38 = load ptr, ptr %9, align 8, !tbaa !9
  %39 = load i32, ptr %12, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds i32, ptr %38, i64 %40
  %42 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %41)
          to label %43 unwind label %54

43:                                               ; preds = %37
  %44 = load i32, ptr %12, align 4, !tbaa !5
  %45 = load ptr, ptr %9, align 8, !tbaa !9
  %46 = load i32, ptr %12, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds i32, ptr %45, i64 %47
  %49 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %8, ptr noundef nonnull align 4 dereferenceable(4) %48)
          to label %50 unwind label %54

50:                                               ; preds = %43
  store i32 %44, ptr %49, align 4, !tbaa !5
  br label %51

51:                                               ; preds = %50
  %52 = load i32, ptr %12, align 4, !tbaa !5
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %12, align 4, !tbaa !5
  br label %28, !llvm.loop !11

54:                                               ; preds = %43, %37
  %55 = landingpad { ptr, i32 }
          cleanup
  %56 = extractvalue { ptr, i32 } %55, 0
  store ptr %56, ptr %10, align 8
  %57 = extractvalue { ptr, i32 } %55, 1
  store i32 %57, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #9
  br label %142

58:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #9
  %59 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %59, ptr %13, align 4, !tbaa !5
  br label %60

60:                                               ; preds = %108, %58
  %61 = load i32, ptr %13, align 4, !tbaa !5
  %62 = icmp sge i32 %61, 1
  br i1 %62, label %64, label %63

63:                                               ; preds = %60
  store i32 5, ptr %14, align 4
  br label %115

64:                                               ; preds = %60
  %65 = load i32, ptr %7, align 4, !tbaa !5
  %66 = icmp eq i32 %65, 0
  br i1 %66, label %67, label %68

67:                                               ; preds = %64
  store i32 5, ptr %14, align 4
  br label %115

68:                                               ; preds = %64
  %69 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %8, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %70 unwind label %77

70:                                               ; preds = %68
  %71 = load i32, ptr %69, align 4, !tbaa !5
  %72 = load i32, ptr %6, align 4, !tbaa !5
  %73 = load i32, ptr %13, align 4, !tbaa !5
  %74 = sub nsw i32 %72, %73
  %75 = icmp eq i32 %71, %74
  br i1 %75, label %76, label %81

76:                                               ; preds = %70
  br label %108

77:                                               ; preds = %68
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %10, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %11, align 4
  br label %116

81:                                               ; preds = %70
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #9
  %82 = load i32, ptr %6, align 4, !tbaa !5
  %83 = load i32, ptr %13, align 4, !tbaa !5
  %84 = sub nsw i32 %82, %83
  store i32 %84, ptr %15, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #9
  %85 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %8, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %86 unwind label %111

86:                                               ; preds = %81
  %87 = load i32, ptr %85, align 4, !tbaa !5
  store i32 %87, ptr %16, align 4, !tbaa !5
  %88 = load ptr, ptr %9, align 8, !tbaa !9
  %89 = load i32, ptr %15, align 4, !tbaa !5
  %90 = sext i32 %89 to i64
  %91 = getelementptr inbounds i32, ptr %88, i64 %90
  %92 = load ptr, ptr %9, align 8, !tbaa !9
  %93 = load i32, ptr %16, align 4, !tbaa !5
  %94 = sext i32 %93 to i64
  %95 = getelementptr inbounds i32, ptr %92, i64 %94
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %91, ptr noundef nonnull align 4 dereferenceable(4) %95) #9
  %96 = load i32, ptr %15, align 4, !tbaa !5
  %97 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %8, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %98 unwind label %111

98:                                               ; preds = %86
  store i32 %96, ptr %97, align 4, !tbaa !5
  %99 = load i32, ptr %16, align 4, !tbaa !5
  %100 = load ptr, ptr %9, align 8, !tbaa !9
  %101 = load i32, ptr %16, align 4, !tbaa !5
  %102 = sext i32 %101 to i64
  %103 = getelementptr inbounds i32, ptr %100, i64 %102
  %104 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %8, ptr noundef nonnull align 4 dereferenceable(4) %103)
          to label %105 unwind label %111

105:                                              ; preds = %98
  store i32 %99, ptr %104, align 4, !tbaa !5
  %106 = load i32, ptr %7, align 4, !tbaa !5
  %107 = add nsw i32 %106, -1
  store i32 %107, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #9
  br label %108

108:                                              ; preds = %105, %76
  %109 = load i32, ptr %13, align 4, !tbaa !5
  %110 = add nsw i32 %109, -1
  store i32 %110, ptr %13, align 4, !tbaa !5
  br label %60, !llvm.loop !13

111:                                              ; preds = %98, %86, %81
  %112 = landingpad { ptr, i32 }
          cleanup
  %113 = extractvalue { ptr, i32 } %112, 0
  store ptr %113, ptr %10, align 8
  %114 = extractvalue { ptr, i32 } %112, 1
  store i32 %114, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #9
  br label %116

115:                                              ; preds = %67, %63
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #9
  br label %117

116:                                              ; preds = %111, %77
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #9
  br label %142

117:                                              ; preds = %115
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #9
  store i32 0, ptr %17, align 4, !tbaa !5
  br label %118

118:                                              ; preds = %133, %117
  %119 = load i32, ptr %17, align 4, !tbaa !5
  %120 = load i32, ptr %6, align 4, !tbaa !5
  %121 = icmp slt i32 %119, %120
  br i1 %121, label %123, label %122

122:                                              ; preds = %118
  store i32 8, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #9
  br label %140

123:                                              ; preds = %118
  %124 = load ptr, ptr %9, align 8, !tbaa !9
  %125 = load i32, ptr %17, align 4, !tbaa !5
  %126 = sext i32 %125 to i64
  %127 = getelementptr inbounds i32, ptr %124, i64 %126
  %128 = load i32, ptr %127, align 4, !tbaa !5
  %129 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %128)
          to label %130 unwind label %136

130:                                              ; preds = %123
  %131 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %129, ptr noundef @.str)
          to label %132 unwind label %136

132:                                              ; preds = %130
  br label %133

133:                                              ; preds = %132
  %134 = load i32, ptr %17, align 4, !tbaa !5
  %135 = add nsw i32 %134, 1
  store i32 %135, ptr %17, align 4, !tbaa !5
  br label %118, !llvm.loop !14

136:                                              ; preds = %130, %123
  %137 = landingpad { ptr, i32 }
          cleanup
  %138 = extractvalue { ptr, i32 } %137, 0
  store ptr %138, ptr %10, align 8
  %139 = extractvalue { ptr, i32 } %137, 1
  store i32 %139, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #9
  br label %142

140:                                              ; preds = %122
  store i32 0, ptr %3, align 4
  store i32 1, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #9
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %8) #9
  call void @llvm.lifetime.end.p0(i64 56, ptr %8) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #9
  %141 = load i32, ptr %3, align 4
  ret i32 %141

142:                                              ; preds = %136, %116, %54, %33
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #9
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %8) #9
  call void @llvm.lifetime.end.p0(i64 56, ptr %8) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #9
  br label %143

143:                                              ; preds = %142
  %144 = load ptr, ptr %10, align 8
  %145 = load i32, ptr %11, align 4
  %146 = insertvalue { ptr, i32 } poison, ptr %144, 0
  %147 = insertvalue { ptr, i32 } %146, i32 %145, 1
  resume { ptr, i32 } %147
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #4

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #5

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #6 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 @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #7

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #8

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #7 align 2

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 = { "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 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #5 = { nobuiltin allocsize(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 = { 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 = { 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 #8 = { 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 #9 = { nounwind }
attributes #10 = { builtin allocsize(0) }

!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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


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

%"class.std::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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::unordered_map", align 8
  %6 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #8
  %7 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %5) #8
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #8
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = icmp slt i32 %9, 0
  %12 = shl nsw i64 %10, 2
  %13 = select i1 %11, i64 -1, i64 %12
  %14 = invoke noalias noundef nonnull ptr @_Znam(i64 noundef %13) #9
          to label %.preheader unwind label %19

.preheader:                                       ; preds = %2
  %15 = icmp sgt i32 %9, 0
  br i1 %15, label %.lr.ph, label %._crit_edge39

._crit_edge:                                      ; preds = %25
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #8
  store i32 %27, ptr %6, align 4, !tbaa !5
  %16 = icmp slt i32 %27, 1
  %17 = load i32, ptr %4, align 4
  %18 = icmp eq i32 %17, 0
  %or.cond32 = select i1 %16, i1 true, i1 %18
  br i1 %or.cond32, label %._crit_edge35, label %.lr.ph34

19:                                               ; preds = %2
  %20 = landingpad { ptr, i32 }
          cleanup
  br label %77

.lr.ph:                                           ; preds = %.preheader, %25
  %indvars.iv = phi i64 [ %indvars.iv.next, %25 ], [ 0, %.preheader ]
  %21 = getelementptr inbounds i32, ptr %14, i64 %indvars.iv
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %21)
          to label %23 unwind label %30

23:                                               ; preds = %.lr.ph
  %24 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 4 dereferenceable(4) %21)
          to label %25 unwind label %30

25:                                               ; preds = %23
  %26 = trunc nuw nsw i64 %indvars.iv to i32
  store i32 %26, ptr %24, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %27 = load i32, ptr %3, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = icmp slt i64 %indvars.iv.next, %28
  br i1 %29, label %.lr.ph, label %._crit_edge, !llvm.loop !9

30:                                               ; preds = %23, %.lr.ph
  %31 = landingpad { ptr, i32 }
          cleanup
  br label %77

.lr.ph34:                                         ; preds = %._crit_edge, %55
  %32 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %33 unwind label %39

33:                                               ; preds = %.lr.ph34
  %34 = load i32, ptr %32, align 4, !tbaa !5
  %35 = load i32, ptr %3, align 4, !tbaa !5
  %36 = load i32, ptr %6, align 4, !tbaa !5
  %37 = sub nsw i32 %35, %36
  %38 = icmp eq i32 %34, %37
  br i1 %38, label %._crit_edge45, label %41

._crit_edge45:                                    ; preds = %33
  %.pre46 = load i32, ptr %4, align 4
  br label %55

39:                                               ; preds = %.lr.ph34
  %40 = landingpad { ptr, i32 }
          cleanup
  br label %65

41:                                               ; preds = %33
  %42 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %43 unwind label %61

43:                                               ; preds = %41
  %44 = load i32, ptr %42, align 4, !tbaa !5
  %45 = sext i32 %37 to i64
  %46 = getelementptr inbounds i32, ptr %14, i64 %45
  %47 = sext i32 %44 to i64
  %48 = getelementptr inbounds i32, ptr %14, i64 %47
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %46, ptr noundef nonnull align 4 dereferenceable(4) %48) #8
  %49 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %50 unwind label %61

50:                                               ; preds = %43
  store i32 %37, ptr %49, align 4, !tbaa !5
  %51 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 4 dereferenceable(4) %48)
          to label %52 unwind label %61

52:                                               ; preds = %50
  store i32 %44, ptr %51, align 4, !tbaa !5
  %53 = load i32, ptr %4, align 4, !tbaa !5
  %54 = add nsw i32 %53, -1
  store i32 %54, ptr %4, align 4, !tbaa !5
  %.pre = load i32, ptr %6, align 4, !tbaa !5
  br label %55

55:                                               ; preds = %._crit_edge45, %52
  %56 = phi i32 [ %.pre46, %._crit_edge45 ], [ %54, %52 ]
  %57 = phi i32 [ %36, %._crit_edge45 ], [ %.pre, %52 ]
  %58 = add nsw i32 %57, -1
  store i32 %58, ptr %6, align 4, !tbaa !5
  %59 = icmp slt i32 %57, 2
  %60 = icmp eq i32 %56, 0
  %or.cond = select i1 %59, i1 true, i1 %60
  br i1 %or.cond, label %._crit_edge35.loopexit, label %.lr.ph34, !llvm.loop !11

61:                                               ; preds = %50, %43, %41
  %62 = landingpad { ptr, i32 }
          cleanup
  br label %65

._crit_edge35.loopexit:                           ; preds = %55
  %.pre47 = load i32, ptr %3, align 4, !tbaa !5
  br label %._crit_edge35

._crit_edge35:                                    ; preds = %._crit_edge35.loopexit, %._crit_edge
  %63 = phi i32 [ %.pre47, %._crit_edge35.loopexit ], [ %27, %._crit_edge ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #8
  %64 = icmp sgt i32 %63, 0
  br i1 %64, label %.lr.ph38, label %._crit_edge39

65:                                               ; preds = %61, %39
  %.pn = phi { ptr, i32 } [ %62, %61 ], [ %40, %39 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #8
  br label %77

._crit_edge39:                                    ; preds = %71, %.preheader, %._crit_edge35
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #8
  ret i32 0

.lr.ph38:                                         ; preds = %._crit_edge35, %71
  %indvars.iv42 = phi i64 [ %indvars.iv.next43, %71 ], [ 0, %._crit_edge35 ]
  %66 = getelementptr inbounds i32, ptr %14, i64 %indvars.iv42
  %67 = load i32, ptr %66, align 4, !tbaa !5
  %68 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %67)
          to label %69 unwind label %75

69:                                               ; preds = %.lr.ph38
  %70 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %68, ptr noundef nonnull @.str)
          to label %71 unwind label %75

71:                                               ; preds = %69
  %indvars.iv.next43 = add nuw nsw i64 %indvars.iv42, 1
  %72 = load i32, ptr %3, align 4, !tbaa !5
  %73 = sext i32 %72 to i64
  %74 = icmp slt i64 %indvars.iv.next43, %73
  br i1 %74, label %.lr.ph38, label %._crit_edge39, !llvm.loop !12

75:                                               ; preds = %69, %.lr.ph38
  %76 = landingpad { ptr, i32 }
          cleanup
  br label %77

77:                                               ; preds = %75, %65, %30, %19
  %.pn27 = phi { ptr, i32 } [ %31, %30 ], [ %76, %75 ], [ %.pn, %65 ], [ %20, %19 ]
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #8
  resume { ptr, i32 } %.pn27
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5 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 @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #6

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #7

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #6 align 2

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 = { "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 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 = { nobuiltin allocsize(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 = { 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 = { 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 #7 = { 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 #8 = { nounwind }
attributes #9 = { builtin allocsize(0) }

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

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


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