; LLVM IR from thepowersgang/mrustc :: src/hir/deserialise.ll (ZN15HirDeserialiser20deserialise_asm_lineEv)

; 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.179 }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon.179 = type { i64, [8 x i8] }
%"struct.AsmCommon::Line" = type { %"class.std::vector.221", %"class.std::__cxx11::basic_string" }
%"class.std::vector.221" = type { %"struct.std::_Vector_base.222" }
%"struct.std::_Vector_base.222" = type { %"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl" }
%"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl" = type { %"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl_data" }
%"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.HirDeserialiser = type { %class.RcString, %"class.std::vector", ptr }
%class.RcString = type { 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

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) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3HIR9serialise6Reader11read_stringB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(96)) #1 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 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 uwtable
define dso_local void @_ZN15HirDeserialiser20deserialise_asm_lineEv(ptr dead_on_unwind noalias writable sret(%"struct.AsmCommon::Line") align 8 %0, ptr noundef nonnull align 8 dereferenceable(40) %1) #1 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.std::vector.221", align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8
  store i1 false, ptr %5, align 1
  call void @_ZN9AsmCommon4LineC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #4
  invoke void @_ZN15HirDeserialiser15deserialise_vecIN9AsmCommon12LineFragmentEEESt6vectorIT_SaIS4_EEv(ptr dead_on_unwind writable sret(%"class.std::vector.221") align 8 %6, ptr noundef nonnull align 8 dereferenceable(40) %10)
          to label %11 unwind label %20

11:                                               ; preds = %2
  %12 = getelementptr inbounds %"struct.AsmCommon::Line", ptr %0, i32 0, i32 0
  %13 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %12, ptr noundef nonnull align 8 dereferenceable(24) %6) #4
  call void @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr %9) #4
  %14 = getelementptr inbounds %class.HirDeserialiser, ptr %10, i32 0, i32 2
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  invoke void @_ZN3HIR9serialise6Reader11read_stringB5cxx11Ev(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %9, ptr noundef nonnull align 8 dereferenceable(96) %15)
          to label %16 unwind label %24

16:                                               ; preds = %11
  %17 = getelementptr inbounds %"struct.AsmCommon::Line", ptr %0, i32 0, i32 1
  %18 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %17, ptr noundef nonnull align 8 dereferenceable(32) %9) #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
  store i1 true, ptr %5, align 1
  %19 = load i1, ptr %5, align 1
  br i1 %19, label %29, label %28

20:                                               ; preds = %2
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %7, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #4
  br label %30

24:                                               ; preds = %11
  %25 = landingpad { ptr, i32 }
          cleanup
  %26 = extractvalue { ptr, i32 } %25, 0
  store ptr %26, ptr %7, align 8
  %27 = extractvalue { ptr, i32 } %25, 1
  store i32 %27, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #4
  br label %30

28:                                               ; preds = %16
  call void @_ZN9AsmCommon4LineD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  br label %29

29:                                               ; preds = %28, %16
  ret void

30:                                               ; preds = %24, %20
  call void @_ZN9AsmCommon4LineD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  br label %31

31:                                               ; preds = %30
  %32 = load ptr, ptr %7, align 8
  %33 = load i32, ptr %8, align 4
  %34 = insertvalue { ptr, i32 } poison, ptr %32, 0
  %35 = insertvalue { ptr, i32 } %34, i32 %33, 1
  resume { ptr, i32 } %35
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN9AsmCommon4LineC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN15HirDeserialiser15deserialise_vecIN9AsmCommon12LineFragmentEEESt6vectorIT_SaIS4_EEv(ptr dead_on_unwind noalias writable sret(%"class.std::vector.221") align 8, ptr noundef nonnull align 8 dereferenceable(40)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN9AsmCommon4LineD2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 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, !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"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon.179 }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon.179 = type { i64, [8 x i8] }
%"struct.AsmCommon::Line" = type { %"class.std::vector.221", %"class.std::__cxx11::basic_string" }
%"class.std::vector.221" = type { %"struct.std::_Vector_base.222" }
%"struct.std::_Vector_base.222" = type { %"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl" }
%"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl" = type { %"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl_data" }
%"struct.std::_Vector_base<AsmCommon::LineFragment, std::allocator<AsmCommon::LineFragment>>::_Vector_impl_data" = type { ptr, ptr, ptr }

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

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) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3HIR9serialise6Reader11read_stringB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(96)) local_unnamed_addr #1 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 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 uwtable
define dso_local void @_ZN15HirDeserialiser20deserialise_asm_lineEv(ptr dead_on_unwind noalias nonnull writable sret(%"struct.AsmCommon::Line") align 8 %0, ptr noundef nonnull align 8 dereferenceable(40) %1) local_unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector.221", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  tail call void @_ZN9AsmCommon4LineC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  invoke void @_ZN15HirDeserialiser15deserialise_vecIN9AsmCommon12LineFragmentEEESt6vectorIT_SaIS4_EEv(ptr dead_on_unwind nonnull writable sret(%"class.std::vector.221") align 8 %3, ptr noundef nonnull align 8 dereferenceable(40) %1)
          to label %5 unwind label %12

5:                                                ; preds = %2
  %6 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  call void @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #4
  %7 = getelementptr inbounds i8, ptr %1, i64 32
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  invoke void @_ZN3HIR9serialise6Reader11read_stringB5cxx11Ev(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %4, ptr noundef nonnull align 8 dereferenceable(96) %8)
          to label %9 unwind label %14

9:                                                ; preds = %5
  %10 = getelementptr inbounds i8, ptr %0, i64 24
  %11 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #4
  ret void

12:                                               ; preds = %2
  %13 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  br label %16

14:                                               ; preds = %5
  %15 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #4
  br label %16

16:                                               ; preds = %14, %12
  %.pn = phi { ptr, i32 } [ %15, %14 ], [ %13, %12 ]
  call void @_ZN9AsmCommon4LineD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  resume { ptr, i32 } %.pn
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN9AsmCommon4LineC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN15HirDeserialiser15deserialise_vecIN9AsmCommon12LineFragmentEEESt6vectorIT_SaIS4_EEv(ptr dead_on_unwind noalias writable sret(%"class.std::vector.221") align 8, ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIN9AsmCommon12LineFragmentESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN9AsmCommon4LineD2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 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 = !{!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