; LLVM IR from thepowersgang/mrustc :: src/hir/hir_ops.ll (ZNK19EncodedLiteralSlice9get_relocEv)

; 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.__gnu_cxx::__normal_iterator.442" = type { ptr }
%struct.EncodedLiteralSlice = type { ptr, i64, i64 }
%struct.EncodedLiteral = type { %"class.std::vector.432", %"class.std::vector.437" }
%"class.std::vector.432" = type { %"struct.std::_Vector_base.433" }
%"struct.std::_Vector_base.433" = type { %"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.437" = type { %"struct.std::_Vector_base.438" }
%"struct.std::_Vector_base.438" = type { %"struct.std::_Vector_base<Reloc, std::allocator<Reloc>>::_Vector_impl" }
%"struct.std::_Vector_base<Reloc, std::allocator<Reloc>>::_Vector_impl" = type { %"struct.std::_Vector_base<Reloc, std::allocator<Reloc>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Reloc, std::allocator<Reloc>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%struct.Reloc = type { i64, i64, %"class.std::unique_ptr.443", %"class.std::__cxx11::basic_string" }
%"class.std::unique_ptr.443" = type { %"struct.std::__uniq_ptr_data.444" }
%"struct.std::__uniq_ptr_data.444" = type { %"class.std::__uniq_ptr_impl.445" }
%"class.std::__uniq_ptr_impl.445" = type { %"class.std::tuple.446" }
%"class.std::tuple.446" = type { %"struct.std::_Tuple_impl.447" }
%"struct.std::_Tuple_impl.447" = type { %"struct.std::_Head_base.450" }
%"struct.std::_Head_base.450" = type { ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon.284 }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon.284 = 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 nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorI5RelocSaIS0_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorI5RelocSaIS0_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPK5RelocSt6vectorIS1_SaIS1_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(56) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZNK19EncodedLiteralSlice9get_relocEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator.442", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.442", align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %9 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %10 = getelementptr inbounds %struct.EncodedLiteralSlice, ptr %9, i32 0, i32 0
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds %struct.EncodedLiteral, ptr %11, i32 0, i32 1
  store ptr %12, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = call ptr @_ZNKSt6vectorI5RelocSaIS0_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #3
  %15 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.442", ptr %5, i32 0, i32 0
  store ptr %14, ptr %15, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call ptr @_ZNKSt6vectorI5RelocSaIS0_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #3
  %18 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.442", ptr %6, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  br label %19

19:                                               ; preds = %36, %1
  %20 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPK5RelocSt6vectorIS1_SaIS1_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  br i1 %20, label %22, label %21

21:                                               ; preds = %19
  store i32 2, ptr %7, align 4
  br label %38

22:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %23 = call noundef nonnull align 8 dereferenceable(56) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  store ptr %23, ptr %8, align 8, !tbaa !5
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.Reloc, ptr %24, i32 0, i32 0
  %26 = load i64, ptr %25, align 8, !tbaa !12
  %27 = getelementptr inbounds %struct.EncodedLiteralSlice, ptr %9, i32 0, i32 1
  %28 = load i64, ptr %27, align 8, !tbaa !22
  %29 = icmp eq i64 %26, %28
  br i1 %29, label %30, label %32

30:                                               ; preds = %22
  %31 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %31, ptr %2, align 8
  store i32 1, ptr %7, align 4
  br label %33

32:                                               ; preds = %22
  store i32 0, ptr %7, align 4
  br label %33

33:                                               ; preds = %32, %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %34 = load i32, ptr %7, align 4
  switch i32 %34, label %38 [
    i32 0, label %35
  ]

35:                                               ; preds = %33
  br label %36

36:                                               ; preds = %35
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  br label %19

38:                                               ; preds = %33, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %39 = load i32, ptr %7, align 4
  switch i32 %39, label %43 [
    i32 2, label %40
    i32 1, label %41
  ]

40:                                               ; preds = %38
  store ptr null, ptr %2, align 8
  br label %41

41:                                               ; preds = %40, %38
  %42 = load ptr, ptr %2, align 8
  ret ptr %42

43:                                               ; preds = %38
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #3 = { 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 0}
!10 = !{!"_ZTS19EncodedLiteralSlice", !6, i64 0, !11, i64 8, !11, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!13, !11, i64 0}
!13 = !{!"_ZTS5Reloc", !11, i64 0, !11, i64 8, !14, i64 16, !20, i64 24}
!14 = !{!"_ZTSSt10unique_ptrIN3HIR4PathESt14default_deleteIS1_EE", !15, i64 0}
!15 = !{!"_ZTSSt15__uniq_ptr_dataIN3HIR4PathESt14default_deleteIS1_ELb1ELb1EE", !16, i64 0}
!16 = !{!"_ZTSSt15__uniq_ptr_implIN3HIR4PathESt14default_deleteIS1_EE", !17, i64 0}
!17 = !{!"_ZTSSt5tupleIJPN3HIR4PathESt14default_deleteIS1_EEE", !18, i64 0}
!18 = !{!"_ZTSSt11_Tuple_implILm0EJPN3HIR4PathESt14default_deleteIS1_EEE", !19, i64 0}
!19 = !{!"_ZTSSt10_Head_baseILm0EPN3HIR4PathELb0EE", !6, i64 0}
!20 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !21, i64 0, !11, i64 8, !7, i64 16}
!21 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!22 = !{!10, !11, i64 8}


; 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.__gnu_cxx::__normal_iterator.442" = type { ptr }

; 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 nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorI5RelocSaIS0_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorI5RelocSaIS0_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPK5RelocSt6vectorIS1_SaIS1_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(56) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZNK19EncodedLiteralSlice9get_relocEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(24) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca %"class.__gnu_cxx::__normal_iterator.442", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator.442", align 8
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 24
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %6 = tail call ptr @_ZNKSt6vectorI5RelocSaIS0_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  store ptr %6, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %7 = tail call ptr @_ZNKSt6vectorI5RelocSaIS0_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  store ptr %7, ptr %3, align 8
  %8 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPK5RelocSt6vectorIS1_SaIS1_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  br i1 %8, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  br label %10

10:                                               ; preds = %.lr.ph, %14
  %11 = call noundef nonnull align 8 dereferenceable(56) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %12 = load i64, ptr %11, align 8, !tbaa !11
  %13 = load i64, ptr %9, align 8, !tbaa !21
  %.not = icmp eq i64 %12, %13
  br i1 %.not, label %._crit_edge, label %14

14:                                               ; preds = %10
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPK5RelocSt6vectorIS1_SaIS1_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %16 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPK5RelocSt6vectorIS1_SaIS1_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  br i1 %16, label %10, label %._crit_edge

._crit_edge:                                      ; preds = %10, %14, %1
  %spec.select = phi ptr [ null, %1 ], [ null, %14 ], [ %11, %10 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret ptr %spec.select
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #3 = { 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, !7, i64 0}
!6 = !{!"_ZTS19EncodedLiteralSlice", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS5Reloc", !10, i64 0, !10, i64 8, !13, i64 16, !19, i64 24}
!13 = !{!"_ZTSSt10unique_ptrIN3HIR4PathESt14default_deleteIS1_EE", !14, i64 0}
!14 = !{!"_ZTSSt15__uniq_ptr_dataIN3HIR4PathESt14default_deleteIS1_ELb1ELb1EE", !15, i64 0}
!15 = !{!"_ZTSSt15__uniq_ptr_implIN3HIR4PathESt14default_deleteIS1_EE", !16, i64 0}
!16 = !{!"_ZTSSt5tupleIJPN3HIR4PathESt14default_deleteIS1_EEE", !17, i64 0}
!17 = !{!"_ZTSSt11_Tuple_implILm0EJPN3HIR4PathESt14default_deleteIS1_EEE", !18, i64 0}
!18 = !{!"_ZTSSt10_Head_baseILm0EPN3HIR4PathELb0EE", !7, i64 0}
!19 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !20, i64 0, !10, i64 8, !8, i64 16}
!20 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !7, i64 0}
!21 = !{!6, !10, i64 8}


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