; LLVM IR from INMOST-DEV/INMOST-FEM :: anifem++/fem/tetdofmap.ll (ZNK3Ani4DofT10BaseDofMap5beginEv)

; 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.Ani::DofT::DofIterator" = type { %"struct.Ani::DofT::LocalOrder", ptr }
%"struct.Ani::DofT::LocalOrder" = type { i32, i32, i8, i8, i8, i8 }

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3Ani4DofT10LocalOrderC2Ev(ptr noundef nonnull align 4 dereferenceable(12)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; 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
define dso_local void @_ZNK3Ani4DofT10BaseDofMap5beginEv(ptr dead_on_unwind noalias writable sret(%"struct.Ani::DofT::DofIterator") align 8 %0, ptr noundef nonnull align 8 dereferenceable(8) %1) #3 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca %"struct.Ani::DofT::LocalOrder", align 4
  %5 = alloca %"struct.Ani::DofT::LocalOrder", align 4
  %6 = alloca { i64, i32 }, align 4
  store ptr %1, ptr %3, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 12, ptr %4) #4
  call void @_ZN3Ani4DofT10LocalOrderC2Ev(ptr noundef nonnull align 4 dereferenceable(12) %4)
  %8 = getelementptr inbounds %"struct.Ani::DofT::LocalOrder", ptr %4, i32 0, i32 0
  store i32 0, ptr %8, align 4, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %5, ptr align 4 %4, i64 12, i1 false), !tbaa.struct !12
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 4 %5, i64 12, i1 false)
  %9 = getelementptr inbounds { i64, i32 }, ptr %6, i32 0, i32 0
  %10 = load i64, ptr %9, align 4
  %11 = getelementptr inbounds { i64, i32 }, ptr %6, i32 0, i32 1
  %12 = load i32, ptr %11, align 4
  call void @_ZN3Ani4DofT11DofIteratorC2EPKNS0_10BaseDofMapENS0_10LocalOrderE(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef %7, i64 %10, i32 %12)
  call void @llvm.lifetime.end.p0(i64 12, ptr %4) #4
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3Ani4DofT11DofIteratorC2EPKNS0_10BaseDofMapENS0_10LocalOrderE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, i64, i32) unnamed_addr #1 align 2

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 = { 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, !11, i64 0}
!10 = !{!"_ZTSN3Ani4DofT10LocalOrderE", !11, i64 0, !11, i64 4, !7, i64 8, !7, i64 9, !7, i64 10, !7, i64 11}
!11 = !{!"int", !7, i64 0}
!12 = !{i64 0, i64 4, !13, i64 4, i64 4, !13, i64 8, i64 1, !14, i64 9, i64 1, !14, i64 10, i64 1, !14, i64 11, i64 1, !14}
!13 = !{!11, !11, i64 0}
!14 = !{!7, !7, i64 0}


; 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.Ani::DofT::DofIterator" = type { %"struct.Ani::DofT::LocalOrder", ptr }
%"struct.Ani::DofT::LocalOrder" = type { i32, i32, i8, i8, i8, i8 }

; 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 nounwind uwtable
declare dso_local void @_ZN3Ani4DofT10LocalOrderC2Ev(ptr noundef nonnull align 4 dereferenceable(12)) unnamed_addr #1 align 2

; 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
define dso_local void @_ZNK3Ani4DofT10BaseDofMap5beginEv(ptr dead_on_unwind noalias writable sret(%"struct.Ani::DofT::DofIterator") align 8 %0, ptr noundef nonnull align 8 dereferenceable(8) %1) local_unnamed_addr #1 align 2 {
  %3 = alloca %"struct.Ani::DofT::LocalOrder", align 8
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %3) #2
  call void @_ZN3Ani4DofT10LocalOrderC2Ev(ptr noundef nonnull align 4 dereferenceable(12) %3)
  store i32 0, ptr %3, align 8, !tbaa !5
  %.sroa.01.0.copyload = load i64, ptr %3, align 8
  %.sroa.22.0..sroa_idx = getelementptr inbounds i8, ptr %3, i64 8
  %.sroa.22.0.copyload = load i32, ptr %.sroa.22.0..sroa_idx, align 8
  call void @_ZN3Ani4DofT11DofIteratorC2EPKNS0_10BaseDofMapENS0_10LocalOrderE(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull %1, i64 %.sroa.01.0.copyload, i32 %.sroa.22.0.copyload)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %3) #2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3Ani4DofT11DofIteratorC2EPKNS0_10BaseDofMapENS0_10LocalOrderE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef, i64, i32) unnamed_addr #1 align 2

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 = { 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 = !{!"_ZTSN3Ani4DofT10LocalOrderE", !7, i64 0, !7, i64 4, !8, i64 8, !8, i64 9, !8, i64 10, !8, i64 11}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass