; LLVM IR from ravireddy07/cpp-book :: src/Subsequences (Subsequences_ASCII)

; 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::__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::__cxx11::basic_ostringstream" = type { %"class.std::basic_ostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"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 }

@.str = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7displayNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiPS4_Ri(ptr noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef nonnull align 4 dereferenceable(4) %3) #0 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca %"class.std::__cxx11::basic_ostringstream", align 8
  %17 = alloca i32, align 4
  %18 = alloca %"class.std::__cxx11::basic_string", align 8
  %19 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %21)
  %23 = load i8, ptr %22, align 1, !tbaa !11
  %24 = sext i8 %23 to i32
  %25 = icmp eq i32 %24, 0
  br i1 %25, label %26, label %34

26:                                               ; preds = %4
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %28, align 4, !tbaa !9
  %31 = sext i32 %29 to i64
  %32 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %27, i64 %31
  %33 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) %32, ptr noundef @.str)
  br label %128

34:                                               ; preds = %4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull align 8 dereferenceable(32) %0)
  %35 = load i32, ptr %6, align 4, !tbaa !9
  %36 = add nsw i32 %35, 1
  %37 = load ptr, ptr %7, align 8, !tbaa !5
  %38 = load ptr, ptr %8, align 8, !tbaa !5
  invoke void @_Z7displayNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiPS4_Ri(ptr noundef %9, i32 noundef %36, ptr noundef %37, ptr noundef nonnull align 4 dereferenceable(4) %38)
          to label %39 unwind label %46

39:                                               ; preds = %34
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  store i32 0, ptr %12, align 4, !tbaa !9
  br label %40

40:                                               ; preds = %67, %39
  %41 = load i32, ptr %12, align 4, !tbaa !9
  %42 = load ptr, ptr %8, align 8, !tbaa !5
  %43 = load i32, ptr %42, align 4, !tbaa !9
  %44 = icmp slt i32 %41, %43
  br i1 %44, label %50, label %45

45:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  br label %70

46:                                               ; preds = %34
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %10, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %11, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  br label %129

50:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 32, ptr %13) #5
  %51 = load i32, ptr %6, align 4, !tbaa !9
  %52 = sext i32 %51 to i64
  %53 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %52)
  %54 = load i8, ptr %53, align 1, !tbaa !11
  %55 = load ptr, ptr %7, align 8, !tbaa !5
  %56 = load i32, ptr %12, align 4, !tbaa !9
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %55, i64 %57
  call void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EES5_RKS8_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %13, i8 noundef signext %54, ptr noundef nonnull align 8 dereferenceable(32) %58)
  %59 = load ptr, ptr %7, align 8, !tbaa !5
  %60 = load ptr, ptr %8, align 8, !tbaa !5
  %61 = load i32, ptr %60, align 4, !tbaa !9
  %62 = load i32, ptr %12, align 4, !tbaa !9
  %63 = add nsw i32 %61, %62
  %64 = sext i32 %63 to i64
  %65 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %59, i64 %64
  %66 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %65, ptr noundef nonnull align 8 dereferenceable(32) %13) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %13) #5
  br label %67

67:                                               ; preds = %50
  %68 = load i32, ptr %12, align 4, !tbaa !9
  %69 = add nsw i32 %68, 1
  store i32 %69, ptr %12, align 4, !tbaa !9
  br label %40, !llvm.loop !12

70:                                               ; preds = %45
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #5
  %71 = load ptr, ptr %8, align 8, !tbaa !5
  %72 = load i32, ptr %71, align 4, !tbaa !9
  store i32 %72, ptr %14, align 4, !tbaa !9
  %73 = load ptr, ptr %8, align 8, !tbaa !5
  %74 = load i32, ptr %73, align 4, !tbaa !9
  %75 = mul nsw i32 %74, 2
  store i32 %75, ptr %73, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #5
  store i32 0, ptr %15, align 4, !tbaa !9
  br label %76

76:                                               ; preds = %106, %70
  %77 = load i32, ptr %15, align 4, !tbaa !9
  %78 = load ptr, ptr %8, align 8, !tbaa !5
  %79 = load i32, ptr %78, align 4, !tbaa !9
  %80 = icmp slt i32 %77, %79
  br i1 %80, label %82, label %81

81:                                               ; preds = %76
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  br label %123

82:                                               ; preds = %76
  call void @llvm.lifetime.start.p0(i64 376, ptr %16) #5
  call void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(112) %16)
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #5
  %83 = load i32, ptr %6, align 4, !tbaa !9
  %84 = sext i32 %83 to i64
  %85 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %84)
          to label %86 unwind label %109

86:                                               ; preds = %82
  %87 = load i8, ptr %85, align 1, !tbaa !11
  %88 = sext i8 %87 to i32
  store i32 %88, ptr %17, align 4, !tbaa !9
  %89 = load i32, ptr %17, align 4, !tbaa !9
  %90 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %16, i32 noundef %89)
          to label %91 unwind label %109

91:                                               ; preds = %86
  call void @llvm.lifetime.start.p0(i64 32, ptr %18) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %19) #5
  invoke void @_ZNKSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %19, ptr noundef nonnull align 8 dereferenceable(112) %16)
          to label %92 unwind label %113

92:                                               ; preds = %91
  %93 = load ptr, ptr %7, align 8, !tbaa !5
  %94 = load i32, ptr %15, align 4, !tbaa !9
  %95 = sext i32 %94 to i64
  %96 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %93, i64 %95
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_RKS8_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %18, ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) %96)
          to label %97 unwind label %117

97:                                               ; preds = %92
  %98 = load ptr, ptr %7, align 8, !tbaa !5
  %99 = load i32, ptr %15, align 4, !tbaa !9
  %100 = load ptr, ptr %8, align 8, !tbaa !5
  %101 = load i32, ptr %100, align 4, !tbaa !9
  %102 = add nsw i32 %99, %101
  %103 = sext i32 %102 to i64
  %104 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %98, i64 %103
  %105 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %104, ptr noundef nonnull align 8 dereferenceable(32) %18) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %18) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #5
  call void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(112) %16) #5
  call void @llvm.lifetime.end.p0(i64 376, ptr %16) #5
  br label %106

106:                                              ; preds = %97
  %107 = load i32, ptr %15, align 4, !tbaa !9
  %108 = add nsw i32 %107, 1
  store i32 %108, ptr %15, align 4, !tbaa !9
  br label %76, !llvm.loop !14

109:                                              ; preds = %86, %82
  %110 = landingpad { ptr, i32 }
          cleanup
  %111 = extractvalue { ptr, i32 } %110, 0
  store ptr %111, ptr %10, align 8
  %112 = extractvalue { ptr, i32 } %110, 1
  store i32 %112, ptr %11, align 4
  br label %122

113:                                              ; preds = %91
  %114 = landingpad { ptr, i32 }
          cleanup
  %115 = extractvalue { ptr, i32 } %114, 0
  store ptr %115, ptr %10, align 8
  %116 = extractvalue { ptr, i32 } %114, 1
  store i32 %116, ptr %11, align 4
  br label %121

117:                                              ; preds = %92
  %118 = landingpad { ptr, i32 }
          cleanup
  %119 = extractvalue { ptr, i32 } %118, 0
  store ptr %119, ptr %10, align 8
  %120 = extractvalue { ptr, i32 } %118, 1
  store i32 %120, ptr %11, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #5
  br label %121

121:                                              ; preds = %117, %113
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %18) #5
  br label %122

122:                                              ; preds = %121, %109
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #5
  call void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(112) %16) #5
  call void @llvm.lifetime.end.p0(i64 376, ptr %16) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  br label %129

123:                                              ; preds = %81
  %124 = load i32, ptr %14, align 4, !tbaa !9
  %125 = load ptr, ptr %8, align 8, !tbaa !5
  %126 = load i32, ptr %125, align 4, !tbaa !9
  %127 = add nsw i32 %126, %124
  store i32 %127, ptr %125, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  br label %128

128:                                              ; preds = %123, %26
  ret void

129:                                              ; preds = %122, %46
  %130 = load ptr, ptr %10, align 8
  %131 = load i32, ptr %11, align 4
  %132 = insertvalue { ptr, i32 } poison, ptr %130, 0
  %133 = insertvalue { ptr, i32 } %132, i32 %131, 1
  resume { ptr, i32 } %133
}

; 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) #1 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #0 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 #0 align 2

declare i32 @__gxx_personality_v0(...)

; 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EES5_RKS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, i8 noundef signext, ptr noundef nonnull align 8 dereferenceable(32)) #0

; 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(112)) unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_RKS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #4

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(112)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(112)) unnamed_addr #1 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

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

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


; 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::__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::__cxx11::basic_ostringstream" = type { %"class.std::basic_ostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"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 }

@.str = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7displayNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiPS4_Ri(ptr noundef nonnull %0, i32 noundef %1, ptr noundef %2, ptr nocapture noundef nonnull align 4 dereferenceable(4) %3) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::__cxx11::basic_ostringstream", align 8
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = sext i32 %1 to i64
  %11 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %10)
  %12 = load i8, ptr %11, align 1, !tbaa !5
  %13 = icmp eq i8 %12, 0
  br i1 %13, label %14, label %20

14:                                               ; preds = %4
  %15 = load i32, ptr %3, align 4, !tbaa !8
  %16 = add nsw i32 %15, 1
  store i32 %16, ptr %3, align 4, !tbaa !8
  %17 = sext i32 %15 to i64
  %18 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %2, i64 %17
  %19 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) %18, ptr noundef nonnull @.str)
  br label %68

20:                                               ; preds = %4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %0)
  %21 = add nsw i32 %1, 1
  invoke void @_Z7displayNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiPS4_Ri(ptr noundef nonnull %5, i32 noundef %21, ptr noundef %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %22 unwind label %28

22:                                               ; preds = %20
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  %23 = load i32, ptr %3, align 4, !tbaa !8
  %24 = icmp sgt i32 %23, 0
  br i1 %24, label %.lr.ph, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %22
  %25 = shl nsw i32 %23, 1
  store i32 %25, ptr %3, align 4, !tbaa !8
  br label %._crit_edge48

._crit_edge:                                      ; preds = %.lr.ph
  %26 = shl nsw i32 %39, 1
  store i32 %26, ptr %3, align 4, !tbaa !8
  %27 = icmp sgt i32 %39, 0
  br i1 %27, label %.lr.ph47, label %._crit_edge48

28:                                               ; preds = %20
  %29 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  br label %69

.lr.ph:                                           ; preds = %22, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %22 ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #5
  %30 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %10)
  %31 = load i8, ptr %30, align 1, !tbaa !5
  %32 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %2, i64 %indvars.iv
  call void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EES5_RKS8_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %6, i8 noundef signext %31, ptr noundef nonnull align 8 dereferenceable(32) %32)
  %33 = load i32, ptr %3, align 4, !tbaa !8
  %34 = trunc nuw nsw i64 %indvars.iv to i32
  %35 = add nsw i32 %33, %34
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %2, i64 %36
  %38 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %37, ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %39 = load i32, ptr %3, align 4, !tbaa !8
  %40 = sext i32 %39 to i64
  %41 = icmp slt i64 %indvars.iv.next, %40
  br i1 %41, label %.lr.ph, label %._crit_edge, !llvm.loop !10

._crit_edge48:                                    ; preds = %50, %._crit_edge.thread, %._crit_edge
  %.lcssa4357 = phi i32 [ %39, %._crit_edge ], [ %23, %._crit_edge.thread ], [ %39, %50 ]
  %.lcssa = phi i32 [ %26, %._crit_edge ], [ %25, %._crit_edge.thread ], [ %57, %50 ]
  %42 = add nsw i32 %.lcssa, %.lcssa4357
  store i32 %42, ptr %3, align 4, !tbaa !8
  br label %68

.lr.ph47:                                         ; preds = %._crit_edge, %50
  %indvars.iv53 = phi i64 [ %indvars.iv.next54, %50 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 376, ptr nonnull %7) #5
  call void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(112) %7)
  %43 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %10)
  %44 = load i8, ptr %43, align 1, !tbaa !5
  %45 = sext i8 %44 to i32
  %46 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %7, i32 noundef %45)
          to label %47 unwind label %60

47:                                               ; preds = %.lr.ph47
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %9) #5
  invoke void @_ZNKSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %9, ptr noundef nonnull align 8 dereferenceable(112) %7)
          to label %48 unwind label %62

48:                                               ; preds = %47
  %49 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %2, i64 %indvars.iv53
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_RKS8_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull align 8 dereferenceable(32) %49)
          to label %50 unwind label %64

50:                                               ; preds = %48
  %51 = load i32, ptr %3, align 4, !tbaa !8
  %52 = trunc nuw nsw i64 %indvars.iv53 to i32
  %53 = add nsw i32 %51, %52
  %54 = sext i32 %53 to i64
  %55 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %2, i64 %54
  %56 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %55, ptr noundef nonnull align 8 dereferenceable(32) %8) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #5
  call void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(112) %7) #5
  call void @llvm.lifetime.end.p0(i64 376, ptr nonnull %7) #5
  %indvars.iv.next54 = add nuw nsw i64 %indvars.iv53, 1
  %57 = load i32, ptr %3, align 4, !tbaa !8
  %58 = sext i32 %57 to i64
  %59 = icmp slt i64 %indvars.iv.next54, %58
  br i1 %59, label %.lr.ph47, label %._crit_edge48, !llvm.loop !12

60:                                               ; preds = %.lr.ph47
  %61 = landingpad { ptr, i32 }
          cleanup
  br label %67

62:                                               ; preds = %47
  %63 = landingpad { ptr, i32 }
          cleanup
  br label %66

64:                                               ; preds = %48
  %65 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  br label %66

66:                                               ; preds = %64, %62
  %.pn = phi { ptr, i32 } [ %65, %64 ], [ %63, %62 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #5
  br label %67

67:                                               ; preds = %66, %60
  %.pn.pn = phi { ptr, i32 } [ %.pn, %66 ], [ %61, %60 ]
  call void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(112) %7) #5
  call void @llvm.lifetime.end.p0(i64 376, ptr nonnull %7) #5
  br label %69

68:                                               ; preds = %._crit_edge48, %14
  ret void

69:                                               ; preds = %67, %28
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %67 ], [ %29, %28 ]
  resume { ptr, i32 } %.pn.pn.pn
}

; 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 #1 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #0 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 #0 align 2

declare i32 @__gxx_personality_v0(...)

; 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EES5_RKS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, i8 noundef signext, ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0

; 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(112)) unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_RKS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(112)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(112)) unnamed_addr #1 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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