; LLVM IR from vmartinv/eldiego :: math/polinomio.ll (Z7ruffini4polyi)

; 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" = type <{ %struct.poly, i32, [4 x i8] }>
%struct.poly = type { %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7ruffini4polyi(ptr dead_on_unwind noalias writable sret(%"struct.std::pair") align 8 %0, ptr noundef %1, i32 noundef %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::vector", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %struct.poly, align 8
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %15 = getelementptr inbounds %struct.poly, ptr %1, i32 0, i32 0
  %16 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #4
  %17 = trunc i64 %16 to i32
  %18 = sub nsw i32 %17, 1
  store i32 %18, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #4
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %20, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %21 unwind label %38

21:                                               ; preds = %3
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  %22 = getelementptr inbounds %struct.poly, ptr %1, i32 0, i32 0
  %23 = load i32, ptr %7, align 4, !tbaa !9
  %24 = sext i32 %23 to i64
  %25 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %22, i64 noundef %24) #4
  %26 = load i32, ptr %25, align 4, !tbaa !9
  %27 = load i32, ptr %7, align 4, !tbaa !9
  %28 = sub nsw i32 %27, 1
  %29 = sext i32 %28 to i64
  %30 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %29) #4
  store i32 %26, ptr %30, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %31 = load i32, ptr %7, align 4, !tbaa !9
  %32 = sub nsw i32 %31, 1
  %33 = sub nsw i32 %32, 1
  store i32 %33, ptr %12, align 4, !tbaa !9
  br label %34

34:                                               ; preds = %60, %21
  %35 = load i32, ptr %12, align 4, !tbaa !9
  %36 = icmp sge i32 %35, 0
  br i1 %36, label %42, label %37

37:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %63

38:                                               ; preds = %3
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %10, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %11, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  br label %83

42:                                               ; preds = %34
  %43 = getelementptr inbounds %struct.poly, ptr %1, i32 0, i32 0
  %44 = load i32, ptr %12, align 4, !tbaa !9
  %45 = add nsw i32 %44, 1
  %46 = sext i32 %45 to i64
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %43, i64 noundef %46) #4
  %48 = load i32, ptr %47, align 4, !tbaa !9
  %49 = load i32, ptr %6, align 4, !tbaa !9
  %50 = load i32, ptr %12, align 4, !tbaa !9
  %51 = add nsw i32 %50, 1
  %52 = sext i32 %51 to i64
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %52) #4
  %54 = load i32, ptr %53, align 4, !tbaa !9
  %55 = mul nsw i32 %49, %54
  %56 = add nsw i32 %48, %55
  %57 = load i32, ptr %12, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  %59 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %58) #4
  store i32 %56, ptr %59, align 4, !tbaa !9
  br label %60

60:                                               ; preds = %42
  %61 = load i32, ptr %12, align 4, !tbaa !9
  %62 = add nsw i32 %61, -1
  store i32 %62, ptr %12, align 4, !tbaa !9
  br label %34, !llvm.loop !11

63:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  %64 = getelementptr inbounds %struct.poly, ptr %1, i32 0, i32 0
  %65 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %64, i64 noundef 0) #4
  %66 = load i32, ptr %65, align 4, !tbaa !9
  %67 = load i32, ptr %6, align 4, !tbaa !9
  %68 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef 0) #4
  %69 = load i32, ptr %68, align 4, !tbaa !9
  %70 = mul nsw i32 %67, %69
  %71 = add nsw i32 %66, %70
  store i32 %71, ptr %13, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %14) #4
  invoke void @_ZN4polyC2ERKSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %14, ptr noundef nonnull align 8 dereferenceable(24) %8)
          to label %72 unwind label %74

72:                                               ; preds = %63
  invoke void @_ZSt9make_pairIR4polyRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS4_INS5_IT0_E4typeEE6__typeEEOS6_OSB_(ptr dead_on_unwind writable sret(%"struct.std::pair") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %14, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %73 unwind label %78

73:                                               ; preds = %72
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %14) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret void

74:                                               ; preds = %63
  %75 = landingpad { ptr, i32 }
          cleanup
  %76 = extractvalue { ptr, i32 } %75, 0
  store ptr %76, ptr %10, align 8
  %77 = extractvalue { ptr, i32 } %75, 1
  store i32 %77, ptr %11, align 4
  br label %82

78:                                               ; preds = %72
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %10, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %11, align 4
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %14) #4
  br label %82

82:                                               ; preds = %78, %74
  call void @llvm.lifetime.end.p0(i64 24, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  br label %83

83:                                               ; preds = %82, %38
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %84

84:                                               ; preds = %83
  %85 = load ptr, ptr %10, align 8
  %86 = load i32, ptr %11, align 4
  %87 = insertvalue { ptr, i32 } poison, ptr %85, 0
  %88 = insertvalue { ptr, i32 } %87, i32 %86, 1
  resume { ptr, i32 } %88
}

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4polyC2ERKSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZSt9make_pairIR4polyRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS4_INS5_IT0_E4typeEE6__typeEEOS6_OSB_(ptr dead_on_unwind noalias writable sret(%"struct.std::pair") align 8, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 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 = { 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 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"}


; 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" = type <{ %struct.poly, i32, [4 x i8] }>
%struct.poly = type { %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7ruffini4polyi(ptr dead_on_unwind noalias writable sret(%"struct.std::pair") align 8 %0, ptr noundef nonnull %1, i32 noundef %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca i32, align 4
  %7 = alloca %struct.poly, align 8
  %8 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #4
  %9 = shl i64 %8, 32
  %sext = add i64 %9, -4294967296
  %10 = ashr exact i64 %sext, 32
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %10, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %11 unwind label %26

11:                                               ; preds = %3
  %12 = trunc i64 %8 to i32
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  %13 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %10) #4
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %sext15 = add i64 %9, -8589934592
  %15 = ashr exact i64 %sext15, 32
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %15) #4
  store i32 %14, ptr %16, align 4, !tbaa !5
  %17 = icmp sgt i32 %12, 2
  br i1 %17, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %11
  %18 = add i64 %8, 4294967293
  %19 = and i64 %18, 4294967295
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %11
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef 0) #4
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %22 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef 0) #4
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = mul nsw i32 %23, %2
  %25 = add nsw i32 %24, %21
  store i32 %25, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #4
  invoke void @_ZN4polyC2ERKSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 8 dereferenceable(24) %4)
          to label %36 unwind label %38

26:                                               ; preds = %3
  %27 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  br label %43

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %19, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %28 = add nuw nsw i64 %indvars.iv, 1
  %29 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %28) #4
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %28) #4
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %33 = mul nsw i32 %32, %2
  %34 = add nsw i32 %33, %30
  %35 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv) #4
  store i32 %34, ptr %35, align 4, !tbaa !5
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %.not = icmp eq i64 %indvars.iv, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

36:                                               ; preds = %._crit_edge
  invoke void @_ZSt9make_pairIR4polyRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS4_INS5_IT0_E4typeEE6__typeEEOS6_OSB_(ptr dead_on_unwind writable sret(%"struct.std::pair") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %37 unwind label %40

37:                                               ; preds = %36
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  ret void

38:                                               ; preds = %._crit_edge
  %39 = landingpad { ptr, i32 }
          cleanup
  br label %42

40:                                               ; preds = %36
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #4
  br label %42

42:                                               ; preds = %40, %38
  %.pn = phi { ptr, i32 } [ %41, %40 ], [ %39, %38 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  br label %43

43:                                               ; preds = %42, %26
  %.pn.pn = phi { ptr, i32 } [ %.pn, %42 ], [ %27, %26 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  resume { ptr, i32 } %.pn.pn
}

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

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

; Function Attrs: 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4polyC2ERKSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZSt9make_pairIR4polyRiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS4_INS5_IT0_E4typeEE6__typeEEOS6_OSB_(ptr dead_on_unwind noalias writable sret(%"struct.std::pair") align 8, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 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 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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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