; LLVM IR from duc0/ContestNeko :: CPPProjects (PalindromicTree)

; 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] }

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

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z12isPalindromeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) #1

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z9solveSlowNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = alloca i1, align 1
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %15 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %16 = trunc i64 %15 to i32
  store i32 %16, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 1, ptr %5, align 4, !tbaa !9
  br label %17

17:                                               ; preds = %90, %1
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = load i32, ptr %3, align 4, !tbaa !9
  %20 = icmp sle i32 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  store i32 2, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %93

22:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %86, %22
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = load i32, ptr %3, align 4, !tbaa !9
  %26 = load i32, ptr %5, align 4, !tbaa !9
  %27 = sub nsw i32 %25, %26
  %28 = add nsw i32 %27, 1
  %29 = icmp slt i32 %24, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %23
  store i32 5, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %89

31:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %32

32:                                               ; preds = %82, %31
  %33 = load i32, ptr %8, align 4, !tbaa !9
  %34 = load i32, ptr %7, align 4, !tbaa !9
  %35 = icmp slt i32 %33, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %32
  store i32 8, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %85

37:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 32, ptr %9) #4
  %38 = load i32, ptr %8, align 4, !tbaa !9
  %39 = sext i32 %38 to i64
  %40 = load i32, ptr %5, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %9, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %39, i64 noundef %41)
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #4
  %42 = load i32, ptr %7, align 4, !tbaa !9
  %43 = sext i32 %42 to i64
  %44 = load i32, ptr %5, align 4, !tbaa !9
  %45 = sext i32 %44 to i64
  store i1 false, ptr %14, align 1
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %10, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %43, i64 noundef %45)
          to label %46 unwind label %64

46:                                               ; preds = %37
  %47 = call noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull align 8 dereferenceable(32) %10) #4
  br i1 %47, label %48, label %56

48:                                               ; preds = %46
  %49 = load i32, ptr %8, align 4, !tbaa !9
  %50 = sext i32 %49 to i64
  %51 = load i32, ptr %5, align 4, !tbaa !9
  %52 = sext i32 %51 to i64
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %13, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %50, i64 noundef %52)
          to label %53 unwind label %68

53:                                               ; preds = %48
  store i1 true, ptr %14, align 1
  %54 = invoke noundef zeroext i1 @_Z12isPalindromeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %13)
          to label %55 unwind label %72

55:                                               ; preds = %53
  br label %56

56:                                               ; preds = %55, %46
  %57 = phi i1 [ false, %46 ], [ %54, %55 ]
  %58 = load i1, ptr %14, align 1
  br i1 %58, label %59, label %60

59:                                               ; preds = %56
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  br label %60

60:                                               ; preds = %59, %56
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #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 %9) #4
  br i1 %57, label %61, label %81

61:                                               ; preds = %60
  %62 = load i32, ptr %4, align 4, !tbaa !9
  %63 = add nsw i32 %62, 1
  store i32 %63, ptr %4, align 4, !tbaa !9
  br label %81

64:                                               ; preds = %37
  %65 = landingpad { ptr, i32 }
          cleanup
  %66 = extractvalue { ptr, i32 } %65, 0
  store ptr %66, ptr %11, align 8
  %67 = extractvalue { ptr, i32 } %65, 1
  store i32 %67, ptr %12, align 4
  br label %80

68:                                               ; preds = %48
  %69 = landingpad { ptr, i32 }
          cleanup
  %70 = extractvalue { ptr, i32 } %69, 0
  store ptr %70, ptr %11, align 8
  %71 = extractvalue { ptr, i32 } %69, 1
  store i32 %71, ptr %12, align 4
  br label %79

72:                                               ; preds = %53
  %73 = landingpad { ptr, i32 }
          cleanup
  %74 = extractvalue { ptr, i32 } %73, 0
  store ptr %74, ptr %11, align 8
  %75 = extractvalue { ptr, i32 } %73, 1
  store i32 %75, ptr %12, align 4
  %76 = load i1, ptr %14, align 1
  br i1 %76, label %77, label %78

77:                                               ; preds = %72
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  br label %78

78:                                               ; preds = %77, %72
  br label %79

79:                                               ; preds = %78, %68
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #4
  br label %80

80:                                               ; preds = %79, %64
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #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 %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %95

81:                                               ; preds = %61, %60
  br label %82

82:                                               ; preds = %81
  %83 = load i32, ptr %8, align 4, !tbaa !9
  %84 = add nsw i32 %83, 1
  store i32 %84, ptr %8, align 4, !tbaa !9
  br label %32, !llvm.loop !11

85:                                               ; preds = %36
  br label %86

86:                                               ; preds = %85
  %87 = load i32, ptr %7, align 4, !tbaa !9
  %88 = add nsw i32 %87, 1
  store i32 %88, ptr %7, align 4, !tbaa !9
  br label %23, !llvm.loop !13

89:                                               ; preds = %30
  br label %90

90:                                               ; preds = %89
  %91 = load i32, ptr %5, align 4, !tbaa !9
  %92 = add nsw i32 %91, 1
  store i32 %92, ptr %5, align 4, !tbaa !9
  br label %17, !llvm.loop !14

93:                                               ; preds = %21
  %94 = load i32, ptr %4, align 4, !tbaa !9
  store i32 1, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret i32 %94

95:                                               ; preds = %80
  %96 = load ptr, ptr %11, align 8
  %97 = load i32, ptr %12, align 4
  %98 = insertvalue { ptr, i32 } poison, ptr %96, 0
  %99 = insertvalue { ptr, i32 } %98, i32 %97, 1
  resume { ptr, i32 } %99
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

; 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) #1 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 #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

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

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

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z12isPalindromeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) local_unnamed_addr #1

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z9solveSlowNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %0) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %6 = trunc i64 %5 to i32
  %.not50 = icmp slt i32 %6, 1
  br i1 %.not50, label %._crit_edge53, label %.preheader33.preheader

.preheader33.preheader:                           ; preds = %1
  %7 = and i64 %5, 2147483647
  %8 = add nuw nsw i64 %5, 1
  %wide.trip.count = and i64 %8, 4294967295
  br label %.preheader33

.preheader33:                                     ; preds = %.preheader33.preheader, %._crit_edge48
  %indvars.iv64 = phi i64 [ 1, %.preheader33.preheader ], [ %indvars.iv.next65, %._crit_edge48 ]
  %indvars.iv60 = phi i32 [ %6, %.preheader33.preheader ], [ %indvars.iv.next61, %._crit_edge48 ]
  %.02751 = phi i32 [ 0, %.preheader33.preheader ], [ %.128.lcssa, %._crit_edge48 ]
  %.not3045 = icmp ult i64 %7, %indvars.iv64
  br i1 %.not3045, label %._crit_edge48, label %.preheader.lr.ph

.preheader.lr.ph:                                 ; preds = %.preheader33
  %wide.trip.count62 = zext i32 %indvars.iv60 to i64
  br label %.preheader

._crit_edge53:                                    ; preds = %._crit_edge48, %1
  %.027.lcssa = phi i32 [ 0, %1 ], [ %.128.lcssa, %._crit_edge48 ]
  ret i32 %.027.lcssa

.preheader:                                       ; preds = %.preheader.lr.ph, %._crit_edge
  %indvars.iv57 = phi i64 [ 0, %.preheader.lr.ph ], [ %indvars.iv.next58, %._crit_edge ]
  %.12846 = phi i32 [ %.02751, %.preheader.lr.ph ], [ %.2.lcssa, %._crit_edge ]
  %.not55 = icmp eq i64 %indvars.iv57, 0
  br i1 %.not55, label %._crit_edge, label %.lr.ph

._crit_edge48:                                    ; preds = %._crit_edge, %.preheader33
  %.128.lcssa = phi i32 [ %.02751, %.preheader33 ], [ %.2.lcssa, %._crit_edge ]
  %indvars.iv.next65 = add nuw nsw i64 %indvars.iv64, 1
  %indvars.iv.next61 = add i32 %indvars.iv60, -1
  %exitcond67.not = icmp eq i64 %indvars.iv.next65, %wide.trip.count
  br i1 %exitcond67.not, label %._crit_edge53, label %.preheader33, !llvm.loop !5

._crit_edge:                                      ; preds = %15, %.preheader
  %.2.lcssa = phi i32 [ %.12846, %.preheader ], [ %spec.select, %15 ]
  %indvars.iv.next58 = add nuw nsw i64 %indvars.iv57, 1
  %exitcond63.not = icmp eq i64 %indvars.iv.next58, %wide.trip.count62
  br i1 %exitcond63.not, label %._crit_edge48, label %.preheader, !llvm.loop !7

.lr.ph:                                           ; preds = %.preheader, %15
  %indvars.iv = phi i64 [ %indvars.iv.next, %15 ], [ 0, %.preheader ]
  %.243 = phi i32 [ %spec.select, %15 ], [ %.12846, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %2, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv, i64 noundef %indvars.iv64)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #4
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %3, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv57, i64 noundef %indvars.iv64)
          to label %9 unwind label %18

9:                                                ; preds = %.lr.ph
  %10 = call noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  br i1 %10, label %11, label %15

11:                                               ; preds = %9
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %4, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv, i64 noundef %indvars.iv64)
          to label %12 unwind label %20

12:                                               ; preds = %11
  %13 = invoke noundef zeroext i1 @_Z12isPalindromeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %4)
          to label %14 unwind label %22

14:                                               ; preds = %12
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  br label %15

15:                                               ; preds = %9, %14
  %16 = phi i1 [ %13, %14 ], [ false, %9 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #4
  %17 = zext i1 %16 to i32
  %spec.select = add nsw i32 %.243, %17
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %indvars.iv57
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !8

18:                                               ; preds = %.lr.ph
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %25

20:                                               ; preds = %11
  %21 = landingpad { ptr, i32 }
          cleanup
  br label %24

22:                                               ; preds = %12
  %23 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  br label %24

24:                                               ; preds = %22, %20
  %.pn = phi { ptr, i32 } [ %23, %22 ], [ %21, %20 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  br label %25

25:                                               ; preds = %24, %18
  %.pn.pn = phi { ptr, i32 } [ %.pn, %24 ], [ %19, %18 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #4
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

; 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 #1 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 #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = distinct !{!7, !6}
!8 = distinct !{!8, !6}


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