; LLVM IR from MakeContributions/DSA :: algorithms/CPlusPlus/Multiplication (karatsuba)

; 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: mustprogress uwtable
declare dso_local noundef i32 @_Z16equalize_stringsRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #0

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

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) #1

; 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)) #2 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3sumNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr noundef %1, ptr noundef %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i1, align 1
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca %"class.std::__cxx11::basic_string", align 8
  %17 = alloca %"class.std::__cxx11::basic_string", align 8
  %18 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %19 = call noundef i32 @_Z16equalize_stringsRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2)
  store i32 %19, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !9
  store i1 false, ptr %9, align 1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  store i32 1, ptr %10, align 4, !tbaa !9
  br label %20

20:                                               ; preds = %59, %3
  %21 = load i32, ptr %10, align 4, !tbaa !9
  %22 = load i32, ptr %7, align 4, !tbaa !9
  %23 = icmp sle i32 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %76

25:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  %26 = load i32, ptr %7, align 4, !tbaa !9
  %27 = load i32, ptr %10, align 4, !tbaa !9
  %28 = sub nsw i32 %26, %27
  %29 = sext i32 %28 to i64
  %30 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %29)
          to label %31 unwind label %62

31:                                               ; preds = %25
  %32 = load i8, ptr %30, align 1, !tbaa !11
  %33 = sext i8 %32 to i32
  %34 = sub nsw i32 %33, 48
  store i32 %34, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #5
  %35 = load i32, ptr %7, align 4, !tbaa !9
  %36 = load i32, ptr %10, align 4, !tbaa !9
  %37 = sub nsw i32 %35, %36
  %38 = sext i32 %37 to i64
  %39 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %38)
          to label %40 unwind label %66

40:                                               ; preds = %31
  %41 = load i8, ptr %39, align 1, !tbaa !11
  %42 = sext i8 %41 to i32
  %43 = sub nsw i32 %42, 48
  store i32 %43, ptr %14, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #5
  %44 = load i32, ptr %11, align 4, !tbaa !9
  %45 = load i32, ptr %14, align 4, !tbaa !9
  %46 = add nsw i32 %44, %45
  %47 = load i32, ptr %8, align 4, !tbaa !9
  %48 = add nsw i32 %46, %47
  %49 = srem i32 %48, 10
  store i32 %49, ptr %15, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %17) #5
  %50 = load i32, ptr %15, align 4, !tbaa !9
  call void @_ZNSt7__cxx119to_stringEi(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %17, i32 noundef %50) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_RKS8_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %16, ptr noundef nonnull align 8 dereferenceable(32) %17, ptr noundef nonnull align 8 dereferenceable(32) %0)
          to label %51 unwind label %70

51:                                               ; preds = %40
  %52 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %16) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #5
  %53 = load i32, ptr %11, align 4, !tbaa !9
  %54 = load i32, ptr %14, align 4, !tbaa !9
  %55 = add nsw i32 %53, %54
  %56 = load i32, ptr %8, align 4, !tbaa !9
  %57 = add nsw i32 %55, %56
  %58 = sdiv i32 %57, 10
  store i32 %58, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %59

59:                                               ; preds = %51
  %60 = load i32, ptr %10, align 4, !tbaa !9
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %10, align 4, !tbaa !9
  br label %20, !llvm.loop !12

62:                                               ; preds = %25
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %12, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %13, align 4
  br label %75

66:                                               ; preds = %31
  %67 = landingpad { ptr, i32 }
          cleanup
  %68 = extractvalue { ptr, i32 } %67, 0
  store ptr %68, ptr %12, align 8
  %69 = extractvalue { ptr, i32 } %67, 1
  store i32 %69, ptr %13, align 4
  br label %74

70:                                               ; preds = %40
  %71 = landingpad { ptr, i32 }
          cleanup
  %72 = extractvalue { ptr, i32 } %71, 0
  store ptr %72, ptr %12, align 8
  %73 = extractvalue { ptr, i32 } %71, 1
  store i32 %73, ptr %13, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  br label %74

74:                                               ; preds = %70, %66
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  br label %75

75:                                               ; preds = %74, %62
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %90

76:                                               ; preds = %24
  %77 = load i32, ptr %8, align 4, !tbaa !9
  %78 = icmp ne i32 %77, 0
  br i1 %78, label %79, label %86

79:                                               ; preds = %76
  call void @llvm.lifetime.start.p0(i64 32, ptr %18) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EES5_RKS8_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %18, i8 noundef signext 49, ptr noundef nonnull align 8 dereferenceable(32) %0)
          to label %80 unwind label %82

80:                                               ; preds = %79
  %81 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, 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 @llvm.lifetime.end.p0(i64 32, ptr %18) #5
  br label %86

82:                                               ; preds = %79
  %83 = landingpad { ptr, i32 }
          cleanup
  %84 = extractvalue { ptr, i32 } %83, 0
  store ptr %84, ptr %12, align 8
  %85 = extractvalue { ptr, i32 } %83, 1
  store i32 %85, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %18) #5
  br label %90

86:                                               ; preds = %80, %76
  store i1 true, ptr %9, align 1
  %87 = load i1, ptr %9, align 1
  br i1 %87, label %89, label %88

88:                                               ; preds = %86
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  br label %89

89:                                               ; preds = %88, %86
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  ret void

90:                                               ; preds = %82, %75
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %91

91:                                               ; preds = %90
  %92 = load ptr, ptr %12, align 8
  %93 = load i32, ptr %13, align 4
  %94 = insertvalue { ptr, i32 } poison, ptr %92, 0
  %95 = insertvalue { ptr, i32 } %94, i32 %93, 1
  resume { ptr, i32 } %95
}

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; 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)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx119to_stringEi(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, i32 noundef) #4

; 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

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


; 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 uwtable
declare dso_local noundef i32 @_Z16equalize_stringsRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0

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

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) #1

; 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 #2 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3sumNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr noundef nonnull %1, ptr noundef nonnull %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = tail call noundef i32 @_Z16equalize_stringsRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2)
  tail call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  %.not24 = icmp slt i32 %7, 1
  br i1 %.not24, label %._crit_edge.thread, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %3
  %8 = zext nneg i32 %7 to i64
  %9 = add nuw i32 %7, 1
  %wide.trip.count = zext i32 %9 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %23
  %.off = add nsw i32 %20, 9
  %10 = icmp ult i32 %.off, 19
  br i1 %10, label %._crit_edge.thread, label %27

.lr.ph:                                           ; preds = %.lr.ph.preheader, %23
  %indvars.iv = phi i64 [ 1, %.lr.ph.preheader ], [ %indvars.iv.next, %23 ]
  %.026 = phi i32 [ 0, %.lr.ph.preheader ], [ %22, %23 ]
  %11 = sub nsw i64 %8, %indvars.iv
  %12 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %11)
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = sext i8 %13 to i32
  %15 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %11)
  %16 = load i8, ptr %15, align 1, !tbaa !5
  %17 = sext i8 %16 to i32
  %18 = add nsw i32 %.026, -96
  %19 = add nsw i32 %18, %14
  %20 = add nsw i32 %19, %17
  %21 = srem i32 %20, 10
  %22 = sdiv i32 %20, 10
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #5
  call void @_ZNSt7__cxx119to_stringEi(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %5, i32 noundef %21) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_RKS8_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %4, ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %0)
          to label %23 unwind label %25

23:                                               ; preds = %.lr.ph
  %24 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !8

25:                                               ; preds = %.lr.ph
  %26 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #5
  br label %32

27:                                               ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #5
  invoke 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 49, ptr noundef nonnull align 8 dereferenceable(32) %0)
          to label %28 unwind label %30

28:                                               ; preds = %27
  %29 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, 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
  br label %._crit_edge.thread

30:                                               ; preds = %27
  %31 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  br label %32

._crit_edge.thread:                               ; preds = %3, %._crit_edge, %28
  ret void

32:                                               ; preds = %30, %25
  %.pn = phi { ptr, i32 } [ %26, %25 ], [ %31, %30 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  resume { ptr, i32 } %.pn
}

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: 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 #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx119to_stringEi(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, i32 noundef) local_unnamed_addr #4

; 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

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 #4 = { 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 #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 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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