; LLVM IR from forestLoop/Learning-ITMO-Academy-Pilot-Course :: suffix-array (5-E)

; 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"

%"struct.std::pair.13" = type { i64, %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11findRefrainRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt6vectorIiSaIiEESB_(ptr dead_on_unwind noalias writable sret(%"struct.std::pair.13") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(24) %3) #2 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca %"class.std::stack", align 8
  %10 = alloca i32, align 4
  %11 = alloca i64, align 8
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i64, align 8
  %19 = alloca i64, align 8
  %20 = alloca i64, align 8
  %21 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %5, align 8
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr %9) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %9)
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %22) #4
  %24 = trunc i64 %23 to i32
  store i32 %24, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %25) #4
  store i64 %26, ptr %11, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 32, ptr %12) #4
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull align 8 dereferenceable(32) %27)
          to label %28 unwind label %34

28:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #4
  store i32 0, ptr %15, align 4, !tbaa !9
  br label %29

29:                                               ; preds = %133, %28
  %30 = load i32, ptr %15, align 4, !tbaa !9
  %31 = load i32, ptr %10, align 4, !tbaa !9
  %32 = icmp sle i32 %30, %31
  br i1 %32, label %38, label %33

33:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  br label %137

34:                                               ; preds = %4
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %13, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %14, align 4
  br label %144

38:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #4
  %39 = load i32, ptr %15, align 4, !tbaa !9
  %40 = load i32, ptr %10, align 4, !tbaa !9
  %41 = icmp eq i32 %39, %40
  br i1 %41, label %42, label %43

42:                                               ; preds = %38
  br label %49

43:                                               ; preds = %38
  %44 = load ptr, ptr %7, align 8, !tbaa !5
  %45 = load i32, ptr %15, align 4, !tbaa !9
  %46 = sext i32 %45 to i64
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %44, i64 noundef %46) #4
  %48 = load i32, ptr %47, align 4, !tbaa !9
  br label %49

49:                                               ; preds = %43, %42
  %50 = phi i32 [ 0, %42 ], [ %48, %43 ]
  store i32 %50, ptr %16, align 4, !tbaa !9
  br label %51

51:                                               ; preds = %128, %49
  %52 = invoke noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %9)
          to label %53 unwind label %112

53:                                               ; preds = %51
  br i1 %52, label %64, label %54

54:                                               ; preds = %53
  %55 = load ptr, ptr %7, align 8, !tbaa !5
  %56 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %9)
          to label %57 unwind label %112

57:                                               ; preds = %54
  %58 = load i32, ptr %56, align 4, !tbaa !9
  %59 = sext i32 %58 to i64
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %55, i64 noundef %59) #4
  %61 = load i32, ptr %60, align 4, !tbaa !9
  %62 = load i32, ptr %16, align 4, !tbaa !9
  %63 = icmp sgt i32 %61, %62
  br label %64

64:                                               ; preds = %57, %53
  %65 = phi i1 [ false, %53 ], [ %63, %57 ]
  br i1 %65, label %66, label %131

66:                                               ; preds = %64
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #4
  %67 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %9)
          to label %68 unwind label %116

68:                                               ; preds = %66
  %69 = load i32, ptr %67, align 4, !tbaa !9
  store i32 %69, ptr %17, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %9)
          to label %70 unwind label %116

70:                                               ; preds = %68
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #4
  %71 = load ptr, ptr %7, align 8, !tbaa !5
  %72 = load i32, ptr %17, align 4, !tbaa !9
  %73 = sext i32 %72 to i64
  %74 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %71, i64 noundef %73) #4
  %75 = load i32, ptr %74, align 4, !tbaa !9
  %76 = sext i32 %75 to i64
  store i64 %76, ptr %18, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #4
  %77 = invoke noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %9)
          to label %78 unwind label %120

78:                                               ; preds = %70
  br i1 %77, label %79, label %81

79:                                               ; preds = %78
  %80 = load i32, ptr %15, align 4, !tbaa !9
  br label %88

81:                                               ; preds = %78
  %82 = load i32, ptr %15, align 4, !tbaa !9
  %83 = sub nsw i32 %82, 1
  %84 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %9)
          to label %85 unwind label %120

85:                                               ; preds = %81
  %86 = load i32, ptr %84, align 4, !tbaa !9
  %87 = sub nsw i32 %83, %86
  br label %88

88:                                               ; preds = %85, %79
  %89 = phi i32 [ %80, %79 ], [ %87, %85 ]
  %90 = sext i32 %89 to i64
  store i64 %90, ptr %19, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #4
  %91 = load i64, ptr %18, align 8, !tbaa !11
  %92 = load i64, ptr %19, align 8, !tbaa !11
  %93 = add nsw i64 %92, 1
  %94 = mul nsw i64 %91, %93
  store i64 %94, ptr %20, align 8, !tbaa !11
  %95 = load i64, ptr %20, align 8, !tbaa !11
  %96 = load i64, ptr %11, align 8, !tbaa !11
  %97 = icmp sgt i64 %95, %96
  br i1 %97, label %98, label %128

98:                                               ; preds = %88
  %99 = load i64, ptr %20, align 8, !tbaa !11
  store i64 %99, ptr %11, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 32, ptr %21) #4
  %100 = load ptr, ptr %6, align 8, !tbaa !5
  %101 = load ptr, ptr %8, align 8, !tbaa !5
  %102 = load i32, ptr %15, align 4, !tbaa !9
  %103 = sext i32 %102 to i64
  %104 = load i64, ptr %19, align 8, !tbaa !11
  %105 = sub nsw i64 %103, %104
  %106 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %101, i64 noundef %105) #4
  %107 = load i32, ptr %106, align 4, !tbaa !9
  %108 = sext i32 %107 to i64
  %109 = load i64, ptr %18, align 8, !tbaa !11
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %21, ptr noundef nonnull align 8 dereferenceable(32) %100, i64 noundef %108, i64 noundef %109)
          to label %110 unwind label %124

110:                                              ; preds = %98
  %111 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull align 8 dereferenceable(32) %21) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %21) #4
  br label %128

112:                                              ; preds = %131, %54, %51
  %113 = landingpad { ptr, i32 }
          cleanup
  %114 = extractvalue { ptr, i32 } %113, 0
  store ptr %114, ptr %13, align 8
  %115 = extractvalue { ptr, i32 } %113, 1
  store i32 %115, ptr %14, align 4
  br label %136

116:                                              ; preds = %68, %66
  %117 = landingpad { ptr, i32 }
          cleanup
  %118 = extractvalue { ptr, i32 } %117, 0
  store ptr %118, ptr %13, align 8
  %119 = extractvalue { ptr, i32 } %117, 1
  store i32 %119, ptr %14, align 4
  br label %130

120:                                              ; preds = %81, %70
  %121 = landingpad { ptr, i32 }
          cleanup
  %122 = extractvalue { ptr, i32 } %121, 0
  store ptr %122, ptr %13, align 8
  %123 = extractvalue { ptr, i32 } %121, 1
  store i32 %123, ptr %14, align 4
  br label %129

124:                                              ; preds = %98
  %125 = landingpad { ptr, i32 }
          cleanup
  %126 = extractvalue { ptr, i32 } %125, 0
  store ptr %126, ptr %13, align 8
  %127 = extractvalue { ptr, i32 } %125, 1
  store i32 %127, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %21) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #4
  br label %129

128:                                              ; preds = %110, %88
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #4
  br label %51, !llvm.loop !13

129:                                              ; preds = %124, %120
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #4
  br label %130

130:                                              ; preds = %129, %116
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #4
  br label %136

131:                                              ; preds = %64
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %9, ptr noundef nonnull align 4 dereferenceable(4) %15)
          to label %132 unwind label %112

132:                                              ; preds = %131
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #4
  br label %133

133:                                              ; preds = %132
  %134 = load i32, ptr %15, align 4, !tbaa !9
  %135 = add nsw i32 %134, 1
  store i32 %135, ptr %15, align 4, !tbaa !9
  br label %29, !llvm.loop !15

136:                                              ; preds = %130, %112
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  br label %143

137:                                              ; preds = %33
  invoke void @_ZNSt4pairIxNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRxRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(32) %12)
          to label %138 unwind label %139

138:                                              ; preds = %137
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %9) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %9) #4
  ret void

139:                                              ; preds = %137
  %140 = landingpad { ptr, i32 }
          cleanup
  %141 = extractvalue { ptr, i32 } %140, 0
  store ptr %141, ptr %13, align 8
  %142 = extractvalue { ptr, i32 } %140, 1
  store i32 %142, ptr %14, align 4
  br label %143

143:                                              ; preds = %139, %136
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #4
  br label %144

144:                                              ; preds = %143, %34
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %9) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %9) #4
  br label %145

145:                                              ; preds = %144
  %146 = load ptr, ptr %13, align 8
  %147 = load i32, ptr %14, align 4
  %148 = insertvalue { ptr, i32 } poison, ptr %146, 0
  %149 = insertvalue { ptr, i32 } %148, i32 %147, 1
  resume { ptr, i32 } %149
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #1 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIxNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRxRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}


; 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"

%"struct.std::pair.13" = type { i64, %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11findRefrainRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt6vectorIiSaIiEESB_(ptr dead_on_unwind noalias writable sret(%"struct.std::pair.13") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(24) %3) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.std::stack", align 8
  %6 = alloca i64, align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %5) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  %10 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #4
  %11 = trunc i64 %10 to i32
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %12 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #4
  store i64 %12, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %7) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %13 unwind label %14

13:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  store i32 0, ptr %8, align 4, !tbaa !9
  %.not29 = icmp slt i32 %11, 0
  br i1 %.not29, label %._crit_edge, label %.lr.ph31

._crit_edge:                                      ; preds = %69, %13
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  invoke void @_ZNSt4pairIxNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRxRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %73 unwind label %74

14:                                               ; preds = %4
  %15 = landingpad { ptr, i32 }
          cleanup
  br label %77

.lr.ph31:                                         ; preds = %13, %69
  %16 = phi i64 [ %68, %69 ], [ %12, %13 ]
  %storemerge30 = phi i32 [ %71, %69 ], [ 0, %13 ]
  %17 = icmp eq i32 %storemerge30, %11
  br i1 %17, label %22, label %18

18:                                               ; preds = %.lr.ph31
  %19 = sext i32 %storemerge30 to i64
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %19) #4
  %21 = load i32, ptr %20, align 4, !tbaa !9
  br label %22

22:                                               ; preds = %.lr.ph31, %18
  %23 = phi i32 [ %21, %18 ], [ 0, %.lr.ph31 ]
  %24 = call noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  br i1 %24, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %22, %65
  %25 = phi i64 [ %66, %65 ], [ %16, %22 ]
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  %27 = load i32, ptr %26, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %28) #4
  %30 = load i32, ptr %29, align 4, !tbaa !9
  %31 = icmp sgt i32 %30, %23
  br i1 %31, label %32, label %.critedge

32:                                               ; preds = %.lr.ph
  %33 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  %34 = load i32, ptr %33, align 4, !tbaa !9
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  %35 = sext i32 %34 to i64
  %36 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %35) #4
  %37 = load i32, ptr %36, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  %39 = call noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  %40 = load i32, ptr %8, align 4, !tbaa !9
  br i1 %39, label %46, label %41

41:                                               ; preds = %32
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  %43 = load i32, ptr %42, align 4, !tbaa !9
  %44 = xor i32 %43, -1
  %45 = add i32 %40, %44
  br label %46

46:                                               ; preds = %32, %41
  %47 = phi i32 [ %45, %41 ], [ %40, %32 ]
  %48 = sext i32 %47 to i64
  %49 = add nsw i64 %48, 1
  %50 = mul nsw i64 %49, %38
  %51 = icmp sgt i64 %50, %25
  br i1 %51, label %52, label %65

52:                                               ; preds = %46
  store i64 %50, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %9) #4
  %53 = load i32, ptr %8, align 4, !tbaa !9
  %54 = sext i32 %53 to i64
  %55 = sub nsw i64 %54, %48
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %55) #4
  %57 = load i32, ptr %56, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %9, ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %58, i64 noundef %38)
          to label %59 unwind label %63

59:                                               ; preds = %52
  %60 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %9) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #4
  br label %65

61:                                               ; preds = %.critedge
  %62 = landingpad { ptr, i32 }
          cleanup
  br label %72

63:                                               ; preds = %52
  %64 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #4
  br label %72

65:                                               ; preds = %59, %46
  %66 = phi i64 [ %50, %59 ], [ %25, %46 ]
  %67 = call noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  br i1 %67, label %.critedge, label %.lr.ph, !llvm.loop !11

.critedge:                                        ; preds = %.lr.ph, %65, %22
  %68 = phi i64 [ %16, %22 ], [ %25, %.lr.ph ], [ %66, %65 ]
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %5, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %69 unwind label %61

69:                                               ; preds = %.critedge
  %70 = load i32, ptr %8, align 4, !tbaa !9
  %71 = add nsw i32 %70, 1
  store i32 %71, ptr %8, align 4, !tbaa !9
  %.not.not = icmp slt i32 %70, %11
  br i1 %.not.not, label %.lr.ph31, label %._crit_edge, !llvm.loop !13

72:                                               ; preds = %63, %61
  %.pn = phi { ptr, i32 } [ %62, %61 ], [ %64, %63 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  br label %76

73:                                               ; preds = %._crit_edge
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %5) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %5) #4
  ret void

74:                                               ; preds = %._crit_edge
  %75 = landingpad { ptr, i32 }
          cleanup
  br label %76

76:                                               ; preds = %74, %72
  %.pn.pn = phi { ptr, i32 } [ %.pn, %72 ], [ %75, %74 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  br label %77

77:                                               ; preds = %76, %14
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %76 ], [ %15, %14 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %5) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %5) #4
  resume { ptr, i32 } %.pn.pn.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIxNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRxRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

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


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