; LLVM IR from thepowersgang/mrustc :: src/hir/deserialise.ll (ZN15HirDeserialiser23deserialise_lifetimedefEv)

; 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.HIR::LifetimeDef" = type { %class.RcString }
%class.RcString = type { ptr }
%class.HirDeserialiser = type { %class.RcString, %"class.std::vector", ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<HIR::TypeRef, std::allocator<HIR::TypeRef>>::_Vector_impl" }
%"struct.std::_Vector_base<HIR::TypeRef, std::allocator<HIR::TypeRef>>::_Vector_impl" = type { %"struct.std::_Vector_base<HIR::TypeRef, std::allocator<HIR::TypeRef>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HIR::TypeRef, std::allocator<HIR::TypeRef>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15HirDeserialiser23deserialise_lifetimedefEv(ptr dead_on_unwind noalias writable sret(%"struct.HIR::LifetimeDef") align 8 %0, ptr noundef nonnull align 8 dereferenceable(40) %1) #0 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca %class.RcString, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8
  store i1 false, ptr %5, align 1
  call void @_ZN3HIR11LifetimeDefC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %10 = getelementptr inbounds %class.HirDeserialiser, ptr %9, i32 0, i32 2
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  invoke void @_ZN3HIR9serialise6Reader12read_istringEv(ptr dead_on_unwind writable sret(%class.RcString) align 8 %6, ptr noundef nonnull align 8 dereferenceable(96) %11)
          to label %12 unwind label %17

12:                                               ; preds = %2
  %13 = getelementptr inbounds %"struct.HIR::LifetimeDef", ptr %0, i32 0, i32 0
  %14 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN8RcStringaSEOS_(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %15 unwind label %21

15:                                               ; preds = %12
  call void @_ZN8RcStringD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  store i1 true, ptr %5, align 1
  %16 = load i1, ptr %5, align 1
  br i1 %16, label %27, label %26

17:                                               ; preds = %2
  %18 = landingpad { ptr, i32 }
          cleanup
  %19 = extractvalue { ptr, i32 } %18, 0
  store ptr %19, ptr %7, align 8
  %20 = extractvalue { ptr, i32 } %18, 1
  store i32 %20, ptr %8, align 4
  br label %25

21:                                               ; preds = %12
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %7, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %8, align 4
  call void @_ZN8RcStringD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  br label %25

25:                                               ; preds = %21, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @_ZN3HIR11LifetimeDefD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #6
  br label %28

26:                                               ; preds = %15
  call void @_ZN3HIR11LifetimeDefD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #6
  br label %27

27:                                               ; preds = %26, %15
  ret void

28:                                               ; preds = %25
  %29 = load ptr, ptr %7, align 8
  %30 = load i32, ptr %8, align 4
  %31 = insertvalue { ptr, i32 } poison, ptr %29, 0
  %32 = insertvalue { ptr, i32 } %31, i32 %30, 1
  resume { ptr, i32 } %32
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN3HIR11LifetimeDefC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) 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 @_ZN3HIR9serialise6Reader12read_istringEv(ptr dead_on_unwind noalias writable sret(%class.RcString) align 8, ptr noundef nonnull align 8 dereferenceable(96)) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN8RcStringaSEOS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: nounwind
declare void @_ZN8RcStringD1Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #4

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3HIR11LifetimeDefD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #5 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 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 "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 = { 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 #6 = { 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, !6, i64 32}
!10 = !{!"_ZTS15HirDeserialiser", !11, i64 0, !12, i64 8, !6, i64 32}
!11 = !{!"_ZTS8RcString", !6, i64 0}
!12 = !{!"_ZTSSt6vectorIN3HIR7TypeRefESaIS1_EE", !13, i64 0}
!13 = !{!"_ZTSSt12_Vector_baseIN3HIR7TypeRefESaIS1_EE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIN3HIR7TypeRefESaIS1_EE12_Vector_implE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIN3HIR7TypeRefESaIS1_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}


; 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.HIR::LifetimeDef" = type { %class.RcString }
%class.RcString = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15HirDeserialiser23deserialise_lifetimedefEv(ptr dead_on_unwind noalias nonnull writable sret(%"struct.HIR::LifetimeDef") align 8 %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(40) %1) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %class.RcString, align 8
  tail call void @_ZN3HIR11LifetimeDefC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %4 = getelementptr inbounds i8, ptr %1, i64 32
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  invoke void @_ZN3HIR9serialise6Reader12read_istringEv(ptr dead_on_unwind nonnull writable sret(%class.RcString) align 8 %3, ptr noundef nonnull align 8 dereferenceable(96) %5)
          to label %6 unwind label %8

6:                                                ; preds = %2
  %7 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN8RcStringaSEOS_(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(8) %3)
  call void @_ZN8RcStringD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  ret void

8:                                                ; preds = %2
  %9 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  call void @_ZN3HIR11LifetimeDefD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #6
  resume { ptr, i32 } %9
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN3HIR11LifetimeDefC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) 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 @_ZN3HIR9serialise6Reader12read_istringEv(ptr dead_on_unwind noalias writable sret(%class.RcString) align 8, ptr noundef nonnull align 8 dereferenceable(96)) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN8RcStringaSEOS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: nounwind
declare void @_ZN8RcStringD1Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #4

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3HIR11LifetimeDefD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #5 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 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 "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 = { 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 #6 = { 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, !8, i64 32}
!6 = !{!"_ZTS15HirDeserialiser", !7, i64 0, !11, i64 8, !8, i64 32}
!7 = !{!"_ZTS8RcString", !8, i64 0}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"_ZTSSt6vectorIN3HIR7TypeRefESaIS1_EE", !12, i64 0}
!12 = !{!"_ZTSSt12_Vector_baseIN3HIR7TypeRefESaIS1_EE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseIN3HIR7TypeRefESaIS1_EE12_Vector_implE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIN3HIR7TypeRefESaIS1_EE17_Vector_impl_dataE", !8, i64 0, !8, i64 8, !8, i64 16}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass